WO2024055315A1

WO2024055315A1 - Energy storage system, battery control method thereof, apparatus, device, and medium

Info

Publication number: WO2024055315A1
Application number: PCT/CN2022/119430
Authority: WO
Inventors: 刘帝平; 颜昱; 林龙珍
Original assignee: 宁德时代新能源科技股份有限公司
Priority date: 2022-09-16
Filing date: 2022-09-16
Publication date: 2024-03-21

Abstract

The present application belongs to the technical field of batteries and provides are an energy storage system, a battery control method thereof, an apparatus, a device, and a medium. The energy storage system comprises a conversion circuit and an energy storage battery, the conversion circuit being connected to the energy storage battery. The energy storage battery discharges to an external device via the conversion circuit. The method comprises: acquiring the battery temperature of the energy storage battery; and, in response to the battery temperature being lower than preset temperature, heating the energy storage battery. The method provided in the embodiments of the present application can heat the energy storage battery, thereby ensuring the working performance of the energy storage battery.

Description

储能***及其电池控制方法、装置、设备和介质Energy storage system and battery control method, device, equipment and medium thereof

技术领域Technical field

本申请涉及电池技术领域，尤其涉及一种储能***及其电池控制方法、装置、设备和介质。The present application relates to the field of battery technology, and in particular to an energy storage system and its battery control method, device, equipment and medium.

背景技术Background technique

储能电池一般包括用于太阳能发电设备和风力发电设备以及可再生能源储蓄能源用的电池，可用于调节电压，以确保***在最佳工作状态下运行。Energy storage batteries generally include batteries used in solar power generation equipment, wind power generation equipment and renewable energy storage energy, which can be used to regulate voltage to ensure that the system operates in optimal working conditions.

但是，储能电池的特性受温度影响较大，储能电池在低温环境下工作会影响其性能。However, the characteristics of energy storage batteries are greatly affected by temperature, and working in low temperature environments will affect the performance of energy storage batteries.

发明内容Contents of the invention

本申请旨在至少解决背景技术中存在的技术问题之一。为此，本申请的一个目的在于提供一种储能***及其电池控制方法、装置、设备和介质，以实现对储能电池的加热，保证储能电池的性能。This application aims to solve at least one of the technical problems existing in the background art. To this end, one purpose of this application is to provide an energy storage system and its battery control method, device, equipment and medium to achieve heating of the energy storage battery and ensure the performance of the energy storage battery.

本申请第一方面的实施例提供一种储能***的电池控制方法，储能***包括转换电路和储能电池，转换电路与储能电池连接，储能电池通过转换电路向外部设备放电，方法包括：获取储能电池的电池温度；响应于电池温度小于预设温度，对储能电池进行加热。An embodiment of the first aspect of the present application provides a battery control method for an energy storage system. The energy storage system includes a conversion circuit and an energy storage battery. The conversion circuit is connected to the energy storage battery. The energy storage battery discharges to an external device through the conversion circuit. The method It includes: obtaining the battery temperature of the energy storage battery; in response to the battery temperature being less than the preset temperature, heating the energy storage battery.

本申请实施例的技术方案中，在储能电池的电池温度小于预设温度时对储能电池进行加热，保证储能电池的工作性能。In the technical solution of the embodiment of the present application, when the battery temperature of the energy storage battery is lower than the preset temperature, the energy storage battery is heated to ensure the working performance of the energy storage battery.

在一些实施例中，对储能电池进行加热，包括以下加热策略中的至少一项：控制储能电池通过转换电路进行交替充电和放电；控制储能电池通过转换电路进行充电；以及控制储能电池通过转换电路进行放电。通过储能电池进行充电或放电实现对储能电池的加热更加方便快捷。In some embodiments, heating the energy storage battery includes at least one of the following heating strategies: controlling the energy storage battery to alternately charge and discharge through the conversion circuit; controlling the energy storage battery to charge through the conversion circuit; and controlling the energy storage battery. The battery is discharged through a conversion circuit. It is more convenient and faster to heat the energy storage battery by charging or discharging the energy storage battery.

在一些实施例中，转换电路包括电容，其中，控制储能电池通过转换电路进行放电包括：控制储能电池向电容进行放电，并且其中，控制储能电池通过转换电路进行充电包括：控制电容对储能电池进行充电。电容既可以进行充电又可以放电，从而通过电容便于实现储能电池的充电和放电。In some embodiments, the conversion circuit includes a capacitor, wherein controlling the energy storage battery to discharge through the conversion circuit includes: controlling the energy storage battery to discharge to the capacitor, and wherein controlling the energy storage battery to charge through the conversion circuit includes: controlling the capacitor to The energy storage battery is charged. Capacitors can both be charged and discharged, thereby facilitating the charging and discharging of energy storage batteries through capacitors.

在一些实施例中，转换电路包括直流母线，电容设置在直流母线上，复用直流母线电容，结构更加简单。电容是储能***中原本存在的元器件，采用电容实现对储能电池的充电或放电，不需要布置其他元器件对储能电池进行充电或放电，更加方便且使得储能***的结构更加简单。In some embodiments, the conversion circuit includes a DC bus, the capacitor is arranged on the DC bus, the DC bus capacitor is reused, and the structure is simpler. Capacitors are components that originally exist in energy storage systems. Capacitors are used to charge or discharge energy storage batteries. There is no need to arrange other components to charge or discharge energy storage batteries. This is more convenient and makes the structure of the energy storage system simpler. .

在一些实施例中，转换电路包括DCAC转换电路，直流母线与DCAC转换电路的直流端连接，DCAC转换电路的交流端与外部设备连接。直接利用与DCAC转换电路连接的直流母线来对储能电池进行充电或放电以对储能电池加热，无需增加其他的元器件更加方便。In some embodiments, the conversion circuit includes a DCAC conversion circuit, the DC bus is connected to the DC end of the DCAC conversion circuit, and the AC end of the DCAC conversion circuit is connected to the external device. It is more convenient to directly use the DC bus connected to the DCAC conversion circuit to charge or discharge the energy storage battery to heat the energy storage battery without adding other components.

在一些实施例中，转换电路包括DCDC转换电路，直流母线与DCDC转换电路的母线端连接，DCDC转换电路的电池端与储能电池连接。直接利用与DCDC转换电路连接的直流母线，无需增加其他的元器件更加方便。In some embodiments, the conversion circuit includes a DCDC conversion circuit, the DC bus is connected to the bus terminal of the DCDC conversion circuit, and the battery terminal of the DCDC conversion circuit is connected to the energy storage battery. It is more convenient to directly use the DC bus connected to the DCDC conversion circuit without adding other components.

在一些实施例中，控制储能电池通过转换电路进行放电包括：控制储能电池通过转换电路向外部设备进行放电，并且其中，控制储能电池通过转换电路进行充电包括：通过控制使得外部设备通过转换电路对储能电池进行充电。外部设备例如是与储能***连接的设备，使用外部设备对储能电池进行充电或放电，就无需在储能***中布置其他的元器件对储能电池进行充电或放电更加方便。In some embodiments, controlling the energy storage battery to discharge through the conversion circuit includes: controlling the energy storage battery to discharge to the external device through the conversion circuit, and wherein controlling the energy storage battery to charge through the conversion circuit includes: controlling the external device to pass through The conversion circuit charges the energy storage battery. The external device is, for example, a device connected to the energy storage system. Using the external device to charge or discharge the energy storage battery eliminates the need to arrange other components in the energy storage system to charge or discharge the energy storage battery, which is more convenient.

在一些实施例中，转换电路包括DCAC转换电路，外部设备为电网，DCAC转换电路与电网连接。DCAC转换电路将发电单元输送的直流电转换为交流电供电网使用，使得整个储能***可以向电网供电，实现储能***的发电功能。In some embodiments, the conversion circuit includes a DCAC conversion circuit, the external device is a power grid, and the DCAC conversion circuit is connected to the power grid. The DCAC conversion circuit converts the DC power delivered by the power generation unit into AC power for use in the power supply network, so that the entire energy storage system can supply power to the power grid and realize the power generation function of the energy storage system.

在一些实施例中，其中，对储能电池进行加热之前，方法还包括：获取储能电池的电池电压，其中，对储能电池进行加热，包括：在电池电压大于预设电池电压的情况下，则执行对储能电池进行加热的操作。在对储能电池进行充电或放电前先获取储能电池的电池电压，通过电池电压判断储能电池是否适合进行充电或放电的操作。在电池电压大于预设电池电压时，再执行对储能电池进行充电或放电的操作，避免在电池电压太低的情况下，仍然对储能电池进行放电的操作影响储能电池的安全性能。In some embodiments, before heating the energy storage battery, the method further includes: obtaining the battery voltage of the energy storage battery, wherein heating the energy storage battery includes: when the battery voltage is greater than the preset battery voltage , then perform the operation of heating the energy storage battery. Before charging or discharging the energy storage battery, the battery voltage of the energy storage battery is obtained, and the battery voltage is used to determine whether the energy storage battery is suitable for charging or discharging operations. When the battery voltage is greater than the preset battery voltage, the operation of charging or discharging the energy storage battery is performed to prevent the safety performance of the energy storage battery from being affected by the operation of discharging the energy storage battery when the battery voltage is too low.

在一些实施例中，其中，对储能电池进行加热之前，方法还包括：获取储能电池的荷电状态，其中，对储能电池进行加热，包括：在荷电状态大于预设荷电状态的情况下，则执行对储能电池进行加热的操作。在对储能电池进行充电或放电前先获取储能电池的荷电状态，通过荷电状态判断储能电池是否适合进行充电或放电的操作。在荷电状态大于预设荷电状态时，再执行对储能电池进行充电或放电的操作，避免在荷电状态太低的情况下，仍然对储能电池进行放电的操作影响储能电池的安全性能。In some embodiments, before heating the energy storage battery, the method further includes: obtaining the state of charge of the energy storage battery, wherein heating the energy storage battery includes: when the state of charge is greater than the preset state of charge In the case of , perform the operation of heating the energy storage battery. Before charging or discharging the energy storage battery, obtain the state of charge of the energy storage battery, and determine whether the energy storage battery is suitable for charging or discharging based on the state of charge. When the state of charge is greater than the preset state of charge, the operation of charging or discharging the energy storage battery is performed again to avoid discharging the energy storage battery when the state of charge is too low and affecting the performance of the energy storage battery. Safety performance.

在一些实施例中，方法还包括：在对储能电池进行加热的过程中，获取储能电池的工作状态信息；基于工作状态信息调整对储能电池进行加热的工作参数。在对储能电池进行加热的过程中，获取储能电池的工作状态信息，并基于工作状态信息调整对储能电池进行加热的工作参数，使得储能电池在充电或放电的过程中的工作参数始终能够满足预设条件，保证对储能电池的加热速度，提高加热效率。In some embodiments, the method further includes: during the process of heating the energy storage battery, obtaining working status information of the energy storage battery; and adjusting working parameters for heating the energy storage battery based on the working status information. In the process of heating the energy storage battery, the working status information of the energy storage battery is obtained, and the working parameters for heating the energy storage battery are adjusted based on the working status information, so that the working parameters of the energy storage battery during charging or discharging It can always meet the preset conditions to ensure the heating speed of the energy storage battery and improve the heating efficiency.

在一些实施例中，获取储能电池的工作状态信息，包括：获取储能电池通过转换电路进行充电或放电时的当前工作电流。其中，基于工作状态信息调整对储能电池进行加热的工作参数包括：基于当前工作电流和预设条件，调整对储能电池进行加热的工作参数。在对储能电池进行加热的过程中，获取储能电池通过转换电路进行充电或放电时的工作电流，当工作电流不满足预设条件，则调整储能电池通过转换电路进行充电或放电时的工作电流，使得储能电池在充电或放电的过程中的工作电流始终能够满足预设条件，由于储能电池在充电或放电过程中的工作电流会影响储能电池加热的速度，从而通过调整充放电中的工作电流能够保证对储能电池的加热速度，提高加热效率。In some embodiments, obtaining the working status information of the energy storage battery includes: obtaining the current operating current of the energy storage battery when charging or discharging through the conversion circuit. Among them, adjusting the working parameters for heating the energy storage battery based on the working status information includes: adjusting the working parameters for heating the energy storage battery based on the current working current and preset conditions. In the process of heating the energy storage battery, the operating current of the energy storage battery when charging or discharging through the conversion circuit is obtained. When the operating current does not meet the preset conditions, the operating current of the energy storage battery when charging or discharging through the conversion circuit is adjusted. The working current ensures that the working current of the energy storage battery during the charging or discharging process can always meet the preset conditions. Since the working current of the energy storage battery during the charging or discharging process will affect the heating speed of the energy storage battery, by adjusting the charging The working current during discharge can ensure the heating speed of the energy storage battery and improve the heating efficiency.

在一些实施例中，转换电路包括电流传感器，电流传感器被配置为检测储能电池的工作电流；获取储能电池通过转换电路进行充电或放电时的当前工作电流，包括：通过电流传感器获取储能电池通过转换电路进行充电或放电时的当前工作电流。使用电流传感器可以很方便地获取储能电池通过转换电路进行充电或放电时的当前工作电流。In some embodiments, the conversion circuit includes a current sensor, and the current sensor is configured to detect the operating current of the energy storage battery; obtaining the current operating current of the energy storage battery when charging or discharging through the conversion circuit includes: obtaining the energy storage through the current sensor The current operating current of the battery when charging or discharging through the conversion circuit. The current operating current of the energy storage battery when charging or discharging through the conversion circuit can be easily obtained using a current sensor.

在一些实施例中，预设条件包括预设基准电压，其中，基于工作状态信息调整对储能电池进行的工作参数，包括：基于当前工作电流获取储能电池通过转换电路进行充电或放电时的当前工作电压；基于当前工作电压和预设基准电压，调整储能电池通过转换电路进行充电或放电时的工作电流。储能电池的工作电流与工作电压具有对应的关系，可以根据工作电流确定出相对应的工作电压，然后根据工作电压与预设基准电压的关系，判断储能电池通过转换电路进行充电或放电时的工作电流是否满足预设条件。In some embodiments, the preset conditions include a preset reference voltage, wherein adjusting the working parameters of the energy storage battery based on the working status information includes: obtaining the current operating current when the energy storage battery is charged or discharged through the conversion circuit. Current working voltage; based on the current working voltage and the preset reference voltage, adjust the working current of the energy storage battery when charging or discharging through the conversion circuit. The working current of the energy storage battery has a corresponding relationship with the working voltage. The corresponding working voltage can be determined based on the working current, and then based on the relationship between the working voltage and the preset reference voltage, it can be judged when the energy storage battery is charged or discharged through the conversion circuit. Whether the operating current meets the preset conditions.

在一些实施例中，基于当前工作电压和预设基准电压，调整储能电池通过转换电路进行充电或放电时的工作电流，包括：响应于工作电压大于预设基准电压，减小储能电池通过转换电路进行充电或放电时的工作电流。当储能电池的工作电流大于预设基准电压，说明工作电流过大，可能会影响***的安全性能，减小工作电流从而保证储能***的安全性能。In some embodiments, based on the current operating voltage and the preset reference voltage, adjusting the operating current of the energy storage battery when charging or discharging through the conversion circuit includes: in response to the operating voltage being greater than the preset reference voltage, reducing the throughput of the energy storage battery. The operating current of the conversion circuit when charging or discharging. When the operating current of the energy storage battery is greater than the preset reference voltage, it means that the operating current is too large, which may affect the safety performance of the system. Reduce the operating current to ensure the safety performance of the energy storage system.

在一些实施例中，基于工作电压和预设基准电压，调整储能电池通过转换电路进行交替充电和放电时的工作电流，包括：响应于工作电压小于预设基准电压，增大储能电池通过转换电路进行充电或放电时的工作电流。当储能电池的工作电流小预设基准电压，说明工作电流过小，影响加热效率，增大工作电流保证加热效率。In some embodiments, based on the operating voltage and the preset reference voltage, adjusting the operating current of the energy storage battery when it is alternately charged and discharged through the conversion circuit includes: in response to the operating voltage being less than the preset reference voltage, increasing the throughput of the energy storage battery. The operating current of the conversion circuit when charging or discharging. When the working current of the energy storage battery is less than the preset reference voltage, it means that the working current is too small, which affects the heating efficiency. Increase the working current to ensure the heating efficiency.

本申请第二方面的实施例提供一种储能***的电池控制装置，包括：第一获取模块，被配置为获取储能电池的电池温度；控制模块，被配置为响应于电池温度小于预设温度对储能电池进行加热。The embodiment of the second aspect of the present application provides a battery control device for an energy storage system, including: a first acquisition module configured to acquire the battery temperature of the energy storage battery; a control module configured to respond to the battery temperature being less than a preset value. The temperature heats the energy storage battery.

本申请第三方面的实施例提供一种储能***，包括转换电路、储能电池和上述实施例中的电池控制装置，转换电路与储能电池连接，储能电池通过转换电路向外部设备放电。A third embodiment of the present application provides an energy storage system, including a conversion circuit, an energy storage battery, and the battery control device in the above embodiment. The conversion circuit is connected to the energy storage battery, and the energy storage battery discharges to external devices through the conversion circuit. .

本申请第四方面的实施例提供一种电子设备，包括：至少一个处理器；以及，与至少一个处理器通信连接的存储器；存储器存储有可被至少一个处理器执行的指令，指令被至少一个处理器执行，以使至少一个处理器能够执行上述实施例中的方法。Embodiments of the fourth aspect of the present application provide an electronic device, including: at least one processor; and a memory communicatively connected to the at least one processor; the memory stores instructions that can be executed by at least one processor, and the instructions are executed by at least one processor. The processor executes, so that at least one processor can execute the method in the above embodiment.

本申请第五方面的实施例提供一种计算机可读存储介质，存储有计算机程序，计算机程序被处理器执行时实现上述实施例中的方法。The embodiment of the fifth aspect of the present application provides a computer-readable storage medium storing a computer program. When the computer program is executed by a processor, the method in the above embodiment is implemented.

本申请第六方面的实施例提供一种计算机程序产品，包括计算机程序，该计算机程序被处理器执行时实现上述实施例中的方法。The embodiment of the sixth aspect of the present application provides a computer program product, including a computer program, which implements the method in the above embodiment when executed by a processor.

上述说明仅是本申请技术方案的概述，为了能够更清楚了解本申请的技术手段，而可依照说明书的内容予以实施，并且为了让本申请的上述和其它目的、特征和优点能够更明显易懂，以下特举本申请的具体实施方式。The above description is only an overview of the technical solutions of the present application. In order to have a clearer understanding of the technical means of the present application, they can be implemented according to the content of the description, and in order to make the above and other purposes, features and advantages of the present application more obvious and understandable. , the specific implementation methods of the present application are specifically listed below.

附图说明Description of drawings

在附图中，除非另外规定，否则贯穿多个附图相同的附图标记表示相同或相似的部件或元素。这些附图不一定是按照比例绘制的。应该理解，这些附图仅描绘了根据本申请公开的一些实施方式，而不应将其视为是对本申请范围的限制。In the drawings, unless otherwise specified, the same reference numbers refer to the same or similar parts or elements throughout the several figures. The drawings are not necessarily to scale. It should be understood that these drawings depict only some embodiments disclosed in accordance with the present application and should not be considered as limiting the scope of the present application.

图1为本申请实施例提供的一种储能***的结构简体图；Figure 1 is a simplified structural diagram of an energy storage system provided by an embodiment of the present application;

图2为本申请实施例提供的一种储能***的电池控制方法的流程图；Figure 2 is a flow chart of a battery control method for an energy storage system provided by an embodiment of the present application;

图3为本申请实施例提供的一种储能***的电池控制方法的流程图；Figure 3 is a flow chart of a battery control method for an energy storage system provided by an embodiment of the present application;

图4为本申请实施例提供的一种储能***的电池控制方法的流程图；Figure 4 is a flow chart of a battery control method for an energy storage system provided by an embodiment of the present application;

图5为本申请实施例提供的一种储能***的电池控制方法的流程图；Figure 5 is a flow chart of a battery control method for an energy storage system provided by an embodiment of the present application;

图6为本申请实施例提供的一种储能***的电池控制方法的流程图；Figure 6 is a flow chart of a battery control method for an energy storage system provided by an embodiment of the present application;

图7为本申请实施例提供的一种储能***的电池控制方法的流程图；Figure 7 is a flow chart of a battery control method for an energy storage system provided by an embodiment of the present application;

图8为本申请实施例提供的一种储能***的电池控制方法的流程图；Figure 8 is a flow chart of a battery control method for an energy storage system provided by an embodiment of the present application;

图9为本申请实施例提供的一种DCDC控制板的电路图；Figure 9 is a circuit diagram of a DCDC control board provided by an embodiment of the present application;

图10为本申请实施例提供的一种工作电流的波形图；Figure 10 is a waveform diagram of an operating current provided by an embodiment of the present application;

图11为本申请实施例提供的另一种工作电流的波形图；Figure 11 is a waveform diagram of another operating current provided by an embodiment of the present application;

图12本申请实施例提供的一种储能***的框图；Figure 12 is a block diagram of an energy storage system provided by an embodiment of the present application;

图13本申请实施例提供的一种储能***的电池控制装置的框图；Figure 13 is a block diagram of a battery control device of an energy storage system provided by an embodiment of the present application;

图14本申请实施例提供的一种储能***的电池控制装置的框图；Figure 14 is a block diagram of a battery control device of an energy storage system provided by an embodiment of the present application;

图15本申请实施例提供的一种储能***的电池控制装置的框图；Figure 15 is a block diagram of a battery control device of an energy storage system provided by an embodiment of the present application;

图16本申请实施例提供的一种储能***的电池控制装置的框图；Figure 16 is a block diagram of a battery control device of an energy storage system provided by an embodiment of the present application;

图17本申请实施例提供的一种储能***的电池控制装置的框图；Figure 17 is a block diagram of a battery control device of an energy storage system provided by an embodiment of the present application;

图18为本申请实施例提供的一种储能***的电池控制方法的流程图；Figure 18 is a flow chart of a battery control method for an energy storage system provided by an embodiment of the present application;

图19为本申请实施例提供的另一种储能***的电池控制方法的流程图。Figure 19 is a flow chart of another battery control method for an energy storage system provided by an embodiment of the present application.

附图标记说明：Explanation of reference symbols:

1、转换电路；2、储能电池；3、外部设备；4、发电单元；5、功率转换单元；6、三相接触器；7、转换器；11、DCAC转换电路；12、DCDC转换电路；13、电流传感器；122、DCDC控制板；1221中央处理器；1222、可控电源芯片；1223、差分放大器；1224、跟随器；401、第一获取模块；402、控制模块；403、第二获取模块；404、调整模块；405、第三获取模块；406、第四获取模块；421、第一控制单元；422、第二控制单元；423、第三控制单元；424、第四控制单元；441、获取单元；442、调整单元。1. Conversion circuit; 2. Energy storage battery; 3. External equipment; 4. Power generation unit; 5. Power conversion unit; 6. Three-phase contactor; 7. Converter; 11. DCAC conversion circuit; 12. DCDC conversion circuit ; 13. Current sensor; 122. DCDC control board; 1221 central processor; 1222. Controllable power supply chip; 1223. Differential amplifier; 1224. Follower; 401. First acquisition module; 402. Control module; 403. Second Acquisition module; 404, adjustment module; 405, third acquisition module; 406, fourth acquisition module; 421, first control unit; 422, second control unit; 423, third control unit; 424, fourth control unit; 441. Acquisition unit; 442. Adjustment unit.

具体实施方式Detailed ways

下面将结合附图对本申请技术方案的实施例进行详细的描述。以下实施例仅用于更加清楚地说明本申请的技术方案，因此只作为示例，而不能以此来限制本申请的保护范围。The embodiments of the technical solution of the present application will be described in detail below with reference to the accompanying drawings. The following examples are only used to illustrate the technical solution of the present application more clearly, and are therefore only used as examples and cannot be used to limit the protection scope of the present application.

除非另有定义，本文所使用的所有的技术和科学术语与属于本申请的技术领域的技术人员通常理解的含义相同；本文中所使用的术语只是为了描述具体的实施例的目的，不是旨在于限制本申请；本申请的说明书和权利要求书及上述附图说明中的术语“包括”和“具有”以及它们的任何变形，意图在于覆盖不排他的包含。Unless otherwise defined, all technical and scientific terms used herein have the same meanings as commonly understood by those skilled in the technical field belonging to this application; the terms used herein are for the purpose of describing specific embodiments only and are not intended to be used in Limitation of this application; the terms "including" and "having" and any variations thereof in the description and claims of this application and the above description of the drawings are intended to cover non-exclusive inclusion.

在本申请实施例的描述中，技术术语“第一”“第二”等仅用于区别不同对象，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量、特定顺序或主次关系。在本申请实施例的描述中，“多个”的含义是两个以上，除非另有明确具体的限定。In the description of the embodiments of this application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying the relative importance or implicitly indicating the quantity or specificity of the indicated technical features. Sequence or priority relationship. In the description of the embodiments of this application, "plurality" means two or more, unless otherwise explicitly and specifically limited.

在本文中提及“实施例”意味着，结合实施例描述的特定特征、结构或特性可以包含在本申请的至少一个实施例中。在说明书中的各个位置出现该短语并不一定均是指相同的实施例，也不是与其它实施例互斥的独立的或备选的实施例。本领域技术人员显式地和隐式地理解的是，本文所描述的实施例可以与其它实施例相结合。Reference herein to "an embodiment" means that a particular feature, structure or characteristic described in connection with the embodiment can be included in at least one embodiment of the present application. The appearances of this phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those skilled in the art understand, both explicitly and implicitly, that the embodiments described herein may be combined with other embodiments.

在本申请实施例的描述中，术语“和/或”仅仅是一种描述关联对象的关联关系，表示可以存在三种关系，例如A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。另外，本文中字符“/”，一般表示前后关联对象是一种“或”的关系。In the description of the embodiments of this application, the term "and/or" is only an association relationship describing associated objects, indicating that there can be three relationships, such as A and/or B, which can mean: A exists alone, and A exists simultaneously and B, there are three cases of B alone. In addition, the character "/" in this article generally indicates that the related objects are an "or" relationship.

在本申请实施例的描述中，术语“多个”指的是两个以上(包括两个)，同理，“多组”指的是两组以上(包括两组)，“多片”指的是两片以上(包括两片)。In the description of the embodiments of this application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to two or more groups (including two groups), and "multiple pieces" refers to It is more than two pieces (including two pieces).

在本申请实施例的描述中，技术术语“中心”、“纵向”、“横向”、“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”、“顺时针”、“逆时针”、“轴向”、“径向”、“周向”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本申请实施例和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请实施例的限制。In the description of the embodiments of this application, the technical terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back" , "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inside", "Outside", "Clockwise", "Counterclockwise", "Axis", " The orientations or positional relationships indicated by "radial", "circumferential", etc. are based on the orientations or positional relationships shown in the drawings. They are only for the convenience of describing the embodiments of the present application and simplifying the description, and are not intended to indicate or imply the devices or devices referred to. Elements must have a specific orientation, be constructed and operate in a specific orientation, and therefore are not to be construed as limitations on the embodiments of the present application.

在本申请实施例的描述中，除非另有明确的规定和限定，技术术语“安装”、“相连”“连接”、“固定”等术语应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或成一体；也可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本申请实施例中的具体含义。In the description of the embodiments of this application, unless otherwise explicitly stated and limited, technical terms such as "installation", "connection", "connection", and "fixing" should be understood in a broad sense. For example, it can be a fixed connection or a fixed connection. It can be detachably connected or integrated; it can also be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediary; it can be the internal connection of two elements or the interaction between two elements. . For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of this application can be understood according to specific circumstances.

目前，从市场形势的发展来看，储能电池的应用越加广泛。储能电池广泛被应用于水力、火力、风力和太阳能电站等储能***。例如在太阳能储能***中，由于太阳能电池的工作特性受太阳光照(辐照)强度、温度等因素变化的影响，因此太阳能电池组件若直接与负载相连时负载往往很难在最佳工作状态下运行，***效率很低。储能电池应用在太阳能电池储能***中时，储能电池会对负载的工作电压有补偿的作用，确保***在最佳工作状态下运行。随着储能电池应用领域的不断扩大，其市场的需求量也在不断地扩增。At present, judging from the development of the market situation, the application of energy storage batteries is becoming more and more widespread. Energy storage batteries are widely used in energy storage systems such as hydraulic, thermal, wind and solar power stations. For example, in a solar energy storage system, since the working characteristics of solar cells are affected by changes in sunlight (irradiation) intensity, temperature and other factors, it is often difficult for the load to operate optimally when the solar cell module is directly connected to the load. When running, the system efficiency is very low. When energy storage batteries are used in solar battery energy storage systems, the energy storage batteries will compensate for the working voltage of the load to ensure that the system operates in optimal working conditions. As the application fields of energy storage batteries continue to expand, their market demand is also constantly expanding.

本申请人注意到，储能电池的特性受温度影响较大，储能电池在低温环境容量会有所下降，且在低温时对储能电池进行充电会存在充不满的情况，还会对储能电池造成伤害，降低储能电池的使用寿命和有效容量。The applicant has noticed that the characteristics of energy storage batteries are greatly affected by temperature. The capacity of energy storage batteries will decrease in low-temperature environments. Moreover, charging the energy storage batteries at low temperatures will not fully charge the battery, and the storage battery will also be damaged. It can cause damage to the energy storage battery and reduce the service life and effective capacity of the energy storage battery.

基于以上考虑，本申请实施例提供了一种储能***的电池控制方法，该方法当储能电池的电池温度小于预设温度时，对储能电池进行加热，以保证储能电池在合适的温度下进行工作，保证储能电池的工作性能。Based on the above considerations, embodiments of the present application provide a battery control method for an energy storage system. In this method, when the battery temperature of the energy storage battery is lower than the preset temperature, the energy storage battery is heated to ensure that the energy storage battery is at the appropriate temperature. Work under high temperature to ensure the working performance of the energy storage battery.

本申请实施例公开的储能***可以用于车辆、船舶或飞行器等用电装置中。这样，有利于保证储能电池的工作性能，同时可以提升储能电池性能的稳定性和电池寿命。The energy storage system disclosed in the embodiment of the present application can be used in electrical devices such as vehicles, ships, or aircrafts. This will help ensure the working performance of the energy storage battery, and at the same time improve the performance stability and battery life of the energy storage battery.

本申请实施例提供一种使用储能***作为电源的用电装置，用电装置可以为但不限于手机、平板、笔记本电脑、电动玩具、电动工具、电瓶车、电动汽车、轮船、航天器等等。其中，电动玩具可以包括固定式或移动式的电动玩具，例如，游戏机、电动汽车玩具、电动轮船玩具和电动飞机玩具等等，航天器可以包括飞机、火箭、航天飞机和宇宙飞船等等。Embodiments of the present application provide an electrical device that uses an energy storage system as a power source. The electrical device can be, but is not limited to, a mobile phone, a tablet, a laptop, an electric toy, an electric tool, a battery car, an electric vehicle, a ship, a spacecraft, etc. . Among them, electric toys can include fixed or mobile electric toys, such as game consoles, electric car toys, electric ship toys, electric airplane toys, etc., and spacecraft can include airplanes, rockets, space shuttles, spaceships, etc.

本申请的一些实施例提供了一种储能***的电池控制方法。图1为本申请实施例提供的一种储能***的结构简体图。参见图1，储能***包括转换电路1和储能电池2，转换电路1与储能电池2连接，储能电池2可通过转换电路1向外部设备3放电。Some embodiments of the present application provide a battery control method for an energy storage system. Figure 1 is a simplified structural diagram of an energy storage system provided by an embodiment of the present application. Referring to Figure 1, the energy storage system includes a conversion circuit 1 and an energy storage battery 2. The conversion circuit 1 is connected to the energy storage battery 2. The energy storage battery 2 can discharge to an external device 3 through the conversion circuit 1.

图2为本申请实施例提供的一种储能***的电池控制方法的流程图。根据本申请的一些实施例，参见图2，电池控制方法包括：Figure 2 is a flow chart of a battery control method for an energy storage system provided by an embodiment of the present application. According to some embodiments of the present application, referring to Figure 2, the battery control method includes:

步骤S101，获取储能电池的电池温度；步骤S102，响应于电池温度小于预设温度，对储能电池进行加热。Step S101, obtain the battery temperature of the energy storage battery; Step S102, in response to the battery temperature being less than the preset temperature, heat the energy storage battery.

图1所示的储能***包括一个转换电路1和储能电池2。在其他实现方式中，储能***中可以有多个转换电路1和储能电池2，图1中仅以一个为例进行展示，并不仅限于此。The energy storage system shown in Figure 1 includes a conversion circuit 1 and an energy storage battery 2. In other implementations, there may be multiple conversion circuits 1 and energy storage batteries 2 in the energy storage system. Figure 1 only takes one as an example and is not limited to this.

在本申请实施例中，转换电路1主要是将储能电池2的电能转换为外部设备3可用的电能形式，实现储能电池2对外部设备的供电。In the embodiment of the present application, the conversion circuit 1 mainly converts the electric energy of the energy storage battery 2 into an electric energy form usable by the external device 3, so as to realize the power supply of the energy storage battery 2 to the external device.

储能电池2具有电池管理***(Battery Management System，BMS)，BMS可以实时监测储能电池2的温度。储能电池2可以包括多块电池单元，BMS可以监测每块电池单元的温度。需要说明的是，储能电池2的电池温度可以是储能电池2内部温度、储能电池2端口温度或者各块电池单元温度的最大温度、最小温度、平均温度等。The energy storage battery 2 has a battery management system (Battery Management System, BMS), and the BMS can monitor the temperature of the energy storage battery 2 in real time. The energy storage battery 2 may include multiple battery units, and the BMS may monitor the temperature of each battery unit. It should be noted that the battery temperature of the energy storage battery 2 may be the internal temperature of the energy storage battery 2, the port temperature of the energy storage battery 2, or the maximum temperature, minimum temperature, average temperature of each battery unit temperature, etc.

同时BMS也可实时监测储能电池2的工作电流。本申请实施中储能电池2的工作电流可以是稳定的直流电流，也即在一段时间内，储能电池2的工作电流是恒定的。储能电池2的工作电流也可以是变换的直流电流，此时储能电池2的工作电流可以指变换的直流电流的最大电流值。At the same time, the BMS can also monitor the working current of the energy storage battery 2 in real time. In the implementation of this application, the operating current of the energy storage battery 2 may be a stable direct current, that is, within a period of time, the operating current of the energy storage battery 2 is constant. The working current of the energy storage battery 2 may also be a converted direct current. In this case, the working current of the energy storage battery 2 may refer to the maximum current value of the converted direct current.

在一些实施例中，储能***具有设备运行监测***(LEMS)，LEMS可与BMS通讯连接，使得LEMS同样能够实时监测储能电池2的电池温度，并获取储能电池2的工作电流。In some embodiments, the energy storage system has a equipment operation monitoring system (LEMS). The LEMS can be communicated with the BMS, so that the LEMS can also monitor the battery temperature of the energy storage battery 2 in real time and obtain the operating current of the energy storage battery 2 .

根据本申请的一些实施例，电池控制方法可以但不限于由LEMS来执行，例如，也可以由BMS来执行。According to some embodiments of the present application, the battery control method may be, but is not limited to, executed by a LEMS, for example, it may also be executed by a BMS.

在本申请实施例中的预设温度可以根据实际情况确定，例如预设温度为0摄氏度(℃)；或者预设温度为5℃。当电池温度低于该预设温度时，说明当前环境会或者即将会对储能电池2造成影响，因此需要采取加热措施。也即当步骤S101获取储能电池2的电池温度后，如果电池温度小于预设温度，则执行步骤S102。如果电池温度大于或等于预设温度，则不对电池进行加热。在对储能电池2进行加热的过程中，BMS可以实时监测储能电池2的电池温度，当BMS监测到储能电池2的电池温度大于或等于预设温度后，LEMS就会控制停止对储能电池2进行加热。The preset temperature in the embodiment of the present application can be determined according to actual conditions, for example, the preset temperature is 0 degrees Celsius (°C); or the preset temperature is 5°C. When the battery temperature is lower than the preset temperature, it means that the current environment will or will soon have an impact on the energy storage battery 2, so heating measures need to be taken. That is, after obtaining the battery temperature of the energy storage battery 2 in step S101, if the battery temperature is less than the preset temperature, step S102 is executed. If the battery temperature is greater than or equal to the preset temperature, the battery will not be heated. During the heating process of energy storage battery 2, BMS can monitor the battery temperature of energy storage battery 2 in real time. When BMS detects that the battery temperature of energy storage battery 2 is greater than or equal to the preset temperature, LEMS will control to stop heating the energy storage battery 2. Battery 2 can be heated.

根据本申请的一些实施例中，可以实时获取电池的电池温度，并且在所获取的电池温度小于预设温度的情况下，执行步骤S102以对电池进行加热。也就是说，在对电池进行加热的过程中，对电池进行多次加热可以根据实际情况确定。例如步骤S102进行一次后储能电池2的电池温度就达到了预设温度，此时就可以停止对储能电池2进行加热。According to some embodiments of the present application, the battery temperature of the battery can be obtained in real time, and when the obtained battery temperature is less than the preset temperature, step S102 is performed to heat the battery. That is to say, in the process of heating the battery, the multiple times of heating the battery can be determined according to the actual situation. For example, after step S102 is performed once, the battery temperature of the energy storage battery 2 reaches the preset temperature, and at this time, the heating of the energy storage battery 2 can be stopped.

在本申请实施例中，储能***可以是风力发电***、水力发电***、火力发电***或者太阳能发电***。In the embodiment of this application, the energy storage system may be a wind power generation system, a hydropower generation system, a thermal power generation system or a solar power generation system.

再次参见图1，根据本申请的一些实施例，储能***还包括发电单元4，发电单元4与转换电路1连接，转换电路1与储能电池2和外部设备3连接。发电单元4产生的电能通过转换电路1转换为外部设备3可用的电能以供外部设备3使用。当外部设备3所需的电能小于发电单元4制造的电能时，部分电能可通过转换电路1的转换后存储至储能电池2；当外部设备3所需的电能大于发电单元4产生的电能时，储能电池2中存储的电能通过转换电路1转换后为外部设备3可用的电能形式以供外部设备3进行使用。Referring to Figure 1 again, according to some embodiments of the present application, the energy storage system also includes a power generation unit 4. The power generation unit 4 is connected to the conversion circuit 1, and the conversion circuit 1 is connected to the energy storage battery 2 and the external device 3. The electric energy generated by the power generation unit 4 is converted into usable electric energy by the external device 3 through the conversion circuit 1 for use by the external device 3 . When the electric energy required by the external device 3 is less than the electric energy produced by the power generation unit 4, part of the electric energy can be converted by the conversion circuit 1 and stored in the energy storage battery 2; when the electric energy required by the external device 3 is greater than the electric energy produced by the power generation unit 4 , the electric energy stored in the energy storage battery 2 is converted by the conversion circuit 1 into an electric energy form available for the external device 3 for use by the external device 3 .

以太阳能发电***为例，再次参见图1，储能***还可包括功率转换单元5，功率转换单元5分别与发电单元4和转换电路1连接，发电单元4可为太阳能板，功率转换单元5包括最大功率点跟踪(Maximum Power Point Tracking，MPPT)控制器，MPPT控制器用于监测太阳能板的发电电压，并追踪最高电压电流值，使太阳能发电***以最大功率输出，以向外部设备3或者储能电池2输出电能。Taking the solar power generation system as an example, referring to Figure 1 again, the energy storage system may also include a power conversion unit 5. The power conversion unit 5 is connected to the power generation unit 4 and the conversion circuit 1 respectively. The power generation unit 4 may be a solar panel, and the power conversion unit 5 It includes a Maximum Power Point Tracking (MPPT) controller. The MPPT controller is used to monitor the power generation voltage of the solar panel and track the highest voltage and current value so that the solar power generation system can output the maximum power to external equipment 3 or storage. The battery 2 can output electric energy.

在本申请实施例中，在储能电池的温度小于预设温度时对储能电池进行加热，保证电池在合适的温度下进行工作，保证储能电池的工作性能。In the embodiment of the present application, when the temperature of the energy storage battery is lower than the preset temperature, the energy storage battery is heated to ensure that the battery operates at a suitable temperature and the working performance of the energy storage battery is ensured.

在本申请实施例的一种实现方式中，步骤S102包括：控制储能电池通过转换电路进行交替充电和放电。In an implementation manner of the embodiment of the present application, step S102 includes: controlling the energy storage battery to alternately charge and discharge through a conversion circuit.

在本申请实施例的另一种实现方式中，步骤S102包括：控制储能电池通过转换电路进行充电。In another implementation manner of the embodiment of the present application, step S102 includes: controlling the energy storage battery to charge through the conversion circuit.

在本申请实施例的另一种实现方式中，步骤S102包括：控制储能电池通过转换电路进行放电。In another implementation manner of the embodiment of the present application, step S102 includes: controlling the energy storage battery to discharge through the conversion circuit.

在本申请实施例中，步骤S102还可以包括以上三种实现方式中的任意两种或三种。In this embodiment of the present application, step S102 may also include any two or three of the above three implementation methods.

根据本申请的一些实施例，储能电池2在放电或者充电的过程中均会产生热量，通过储能电池2的充电、放电或者交替充电和放电实现加热更加方便。例如，对储能电池2进行放电实现对储能电池2的加热；或者对储能电池2进行充电实现对储能电池2的加热；或者对储能电池2进行交替充电和放电实现对储能电池2的加热。According to some embodiments of the present application, the energy storage battery 2 will generate heat during the discharge or charging process, and it is more convenient to achieve heating through charging and discharging or alternate charging and discharging of the energy storage battery 2 . For example, the energy storage battery 2 is discharged to heat the energy storage battery 2; or the energy storage battery 2 is charged to heat the energy storage battery 2; or the energy storage battery 2 is alternately charged and discharged to heat the energy storage battery 2. Heating of battery 2.

在一些实施例中，在对电池进行加热的过程中，可以对电池进行多次加热，直至电池温度大于或等于预设问题，即可以基于实时获取的电池温度多次执行上述步骤S102，也即循环多次对储能电池2进行充电、放电或者交替充电和放电，直至储能电池2的温度达到预设温度。In some embodiments, during the process of heating the battery, the battery can be heated multiple times until the battery temperature is greater than or equal to the preset problem, that is, the above step S102 can be performed multiple times based on the battery temperature obtained in real time, that is, Charge and discharge the energy storage battery 2 or alternately charge and discharge the energy storage battery 2 in multiple cycles until the temperature of the energy storage battery 2 reaches the preset temperature.

根据本申请的一些实施例，参见图1，转换电路1包括电容，控制储能电池通过转换电路进行放电包括：控制储能电池向电容进行放电，并且控制储能电池通过转换电路进行充电包括：控制电容对储能电池进行充电。图3为本申请实施例提供的一种储能***的电池控制方法的流程图。参见图3，当步骤S102包括：控制储能电池通过转换电路进行交替充电和放电时，步骤S102可以包括：According to some embodiments of the present application, referring to Figure 1, the conversion circuit 1 includes a capacitor, controlling the energy storage battery to discharge through the conversion circuit includes: controlling the energy storage battery to discharge to the capacitor, and controlling the energy storage battery to charge through the conversion circuit includes: Control the capacitor to charge the energy storage battery. Figure 3 is a flow chart of a battery control method for an energy storage system provided by an embodiment of the present application. Referring to Figure 3, when step S102 includes: controlling the energy storage battery to alternately charge and discharge through the conversion circuit, step S102 may include:

步骤S121，控制储能电池向电容进行放电；步骤S122，控制电容对储能电池进行充电。Step S121, control the energy storage battery to discharge to the capacitor; step S122, control the capacitor to charge the energy storage battery.

电容在储能***中起到补偿的作用，可以使得储能***输送给储能电池2和外部设备3的电能更加稳定。电容既可用于存储电能，同时电容也可以用于释放电能。The capacitor plays a compensation role in the energy storage system, which can make the electric energy delivered by the energy storage system to the energy storage battery 2 and the external device 3 more stable. Capacitors can be used to store electrical energy, and capacitors can also be used to release electrical energy.

在本申请的一些实施例中，步骤S121和步骤S122可依次交替进行，也即多次重复步骤S121和步骤S122以实现对储能电池2的加热。其中，步骤S121和步骤S122变换的频率可根据实际需求进行，本申请对此不作特殊限制。In some embodiments of the present application, step S121 and step S122 may be performed alternately in sequence, that is, step S121 and step S122 may be repeated multiple times to achieve heating of the energy storage battery 2 . The frequency conversion in steps S121 and S122 can be carried out according to actual needs, and this application does not place special restrictions on this.

根据本申请的一些实施例，用于储能电池2充电或放电的电容可以复用储能***中原本存在的元器件，采用电容实现对储能电池2的充电或放电，不需要布置其他元器件对储能电池2进行充电或放电，更加方便且使得储能***的结构更加简单。According to some embodiments of the present application, the capacitor used for charging or discharging the energy storage battery 2 can reuse components originally existing in the energy storage system, and the capacitor is used to charge or discharge the energy storage battery 2 without the need to arrange other components. The device charges or discharges the energy storage battery 2, which is more convenient and makes the structure of the energy storage system simpler.

根据本申请的一些实施例，参见图1，转换电路1包括直流母线，电容设置在直流母线上。According to some embodiments of the present application, referring to Figure 1, the conversion circuit 1 includes a DC bus, and a capacitor is disposed on the DC bus.

当电容设置在直流母线上时，此时的电容可以称为母线电容。When the capacitor is placed on the DC bus, the capacitor at this time can be called bus capacitance.

在本申请实施例中，直接使用母线电容对储能电池2进行充电或放电更加方便。In the embodiment of the present application, it is more convenient to directly use the bus capacitor to charge or discharge the energy storage battery 2 .

在本申请实施例的一种实现方式中，参见图1，转换电路1包括DCAC转换电路11，直流母线与DCAC转换电路11的直流端连接，DCAC转换电路11的交流端与外部设备3连接。In an implementation manner of the embodiment of the present application, see FIG. 1 , the conversion circuit 1 includes a DCAC conversion circuit 11 , the DC bus is connected to the DC end of the DCAC conversion circuit 11 , and the AC end of the DCAC conversion circuit 11 is connected to the external device 3 .

在本申请实施例中，储能***中可以有多个DCAC转换电路11，每一个DCAC转换电路11均可以与一个外部设备3连接，图1中仅以一个为例进行展示，并不仅限于此。In the embodiment of the present application, there can be multiple DCAC conversion circuits 11 in the energy storage system, and each DCAC conversion circuit 11 can be connected to an external device 3. In Figure 1, only one is shown as an example, and it is not limited to this. .

在本申请实施例中，DCAC转换电路11包括双向逆变器，使得DCAC转换电路11可将交流电转换为直流电，同时DCAC转换电路11也可将直流电转换为交流电，当外部设备3为使用交流电的设备时，DCAC转换电路11可以将储能***中的直流电转换为交流电供外部设备3使用，此时外部设备3可以为电网。同时电网也可以通过DCAC转换电路11将交流电转换为直流电供给与转换电路1相连的储能电池2进行储能。In the embodiment of the present application, the DCAC conversion circuit 11 includes a bidirectional inverter, so that the DCAC conversion circuit 11 can convert alternating current into direct current. At the same time, the DCAC conversion circuit 11 can also convert direct current into alternating current. When the external device 3 uses alternating current, When the device is installed, the DCAC conversion circuit 11 can convert the DC power in the energy storage system into AC power for use by the external device 3. At this time, the external device 3 can be the power grid. At the same time, the power grid can also convert AC power into DC power through the DCAC conversion circuit 11 and supply it to the energy storage battery 2 connected to the conversion circuit 1 for energy storage.

在本申请实施例的一种实现方式中，电容包括与DCAC转换电路11连接的直流母线上的母线电容C1或者C2。In an implementation manner of the embodiment of the present application, the capacitor includes bus capacitance C1 or C2 on the DC bus connected to the DCAC conversion circuit 11 .

在本申请实施例中，DCAC转换电路11和MPPT控制器均属于太阳能发电***的光储充电能转换单元(PCS)。其中PCS的控制板与LEMS通讯连接。In the embodiment of the present application, the DCAC conversion circuit 11 and the MPPT controller both belong to the photovoltaic storage and charging energy conversion unit (PCS) of the solar power generation system. The PCS control panel is connected to the LEMS communication.

在本申请的一些实施例中，DCAC转换电路11可以为多电平DCAC转换电路，例如，当外部设备3为电网时，DCAC转换电路11为三电平DCAC转换电路。其中，三电平DCAC转换电路包括三个桥臂。In some embodiments of the present application, the DCAC conversion circuit 11 may be a multi-level DCAC conversion circuit. For example, when the external device 3 is a power grid, the DCAC conversion circuit 11 is a three-level DCAC conversion circuit. Among them, the three-level DCAC conversion circuit includes three bridge arms.

在本申请的一些实施例中，参见图1，储能***还包括三相接触器6，三相接触器6用于控制电网与DCAC转换电路11之间连通与闭合。In some embodiments of the present application, referring to FIG. 1 , the energy storage system also includes a three-phase contactor 6 . The three-phase contactor 6 is used to control the connection and closure between the power grid and the DCAC conversion circuit 11 .

在本申请实施例中，在步骤S121或者步骤S122前，需要断开三相接触器6，避免外部设备3影响储能电池2的充电或者放电。In the embodiment of the present application, before step S121 or step S122, the three-phase contactor 6 needs to be disconnected to prevent the external device 3 from affecting the charging or discharging of the energy storage battery 2.

在本申请实施例中，在外部设备3为电网的情况下，储能***还包括转换器7，转换器7用于连接三相接触器6与电网，保证储能***传输给电网的电能能够供电网使用。In the embodiment of the present application, when the external device 3 is a power grid, the energy storage system further includes a converter 7, which is used to connect the three-phase contactor 6 with the power grid to ensure that the electric energy transmitted by the energy storage system to the power grid can be used by the power grid.

在需要对储能电池进行加热的情况下，直接利用与DCAC转换电路11连接的直流母线来对储能电池进行充电或放电以对储能电池2加热，无需增加其他的元器件更加方便。When the energy storage battery needs to be heated, it is more convenient to directly use the DC bus connected to the DCAC conversion circuit 11 to charge or discharge the energy storage battery to heat the energy storage battery 2 without adding other components.

在本申请实施例的另一种实现方式中，参见图1，转换电路1包括DCDC转换电路12，直流母线与DCDC转换电路12的母线端连接，也就是说，用于储能电池2充放电的电容为与DCDC转换电路12连接的直流母线电容。DCDC转换电路的电池端与储能电池2连接。In another implementation of the embodiment of the present application, referring to Figure 1, the conversion circuit 1 includes a DCDC conversion circuit 12, and the DC bus is connected to the bus end of the DCDC conversion circuit 12, that is, used for charging and discharging the energy storage battery 2 The capacitor is the DC bus capacitor connected to the DCDC conversion circuit 12. The battery terminal of the DCDC conversion circuit is connected to the energy storage battery 2.

DCDC转换电路12用于将直流电转换为直流电，调节电压，储能***向储能电池2输送的电能经过DCDC转换电路12后转换为更利于储能电池2进行储能的电能。The DCDC conversion circuit 12 is used to convert direct current into direct current and adjust the voltage. The electric energy delivered by the energy storage system to the energy storage battery 2 is converted into electric energy that is more conducive to energy storage by the energy storage battery 2 after passing through the DCDC conversion circuit 12 .

在本申请实施例中，储能***中可以有多个DCDC转换电路12及其所接的储能电池2，图1中仅以一个为例进行展示，并不仅限于此。In the embodiment of the present application, there may be multiple DCDC conversion circuits 12 and their connected energy storage batteries 2 in the energy storage system. In FIG. 1 , only one is shown as an example, and it is not limited to this.

在本申请实施例的一种实现方式中，电容包括与DCDC转换电路12连接的直流母线上的母线电容C3。In an implementation manner of the embodiment of the present application, the capacitor includes a bus capacitor C3 on the DC bus connected to the DCDC conversion circuit 12 .

在本申请实施例的另一种实现方式中，电容C包括与DCAC转换电路11连接的直流母线上的母线电容C1和C2，以及与DCDC转换电路12连接的直流母线上的母线电容C3。In another implementation of the embodiment of the present application, the capacitor C includes bus capacitances C1 and C2 on the DC bus connected to the DCAC conversion circuit 11 , and bus capacitance C3 on the DC bus connected to the DCDC conversion circuit 12 .

在本申请一些实施例中，当外部设备3为使用交流电的设备时，储能电池2输出的为直流电，储能电池2通过DCDC转换电路12将直流电传输给DCAC转换电路11，DCAC转换电路11再将直流电转换为交流电传输给外部设备使用。外部设备3输出的为交流电，外部设备3通过DCAC转换电路11将交流电转换为直流电再传输给DCDC转换电路12，DCDC转换电路12再将直流电转换为适合储能电池2使用的电能供储能电池进行存储。In some embodiments of the present application, when the external device 3 is a device that uses alternating current, the energy storage battery 2 outputs direct current, and the energy storage battery 2 transmits the direct current to the DCAC conversion circuit 11 through the DCDC conversion circuit 12. The DCAC conversion circuit 11 The DC power is then converted into AC power and transmitted to external devices for use. The output of the external device 3 is alternating current. The external device 3 converts the alternating current into direct current through the DCAC conversion circuit 11 and then transmits it to the DCDC conversion circuit 12. The DCDC conversion circuit 12 then converts the direct current into electric energy suitable for the energy storage battery 2 for the energy storage battery. for storage.

直接利用与DCDC转换电路12连接的直流母线，无需增加其他的元器件更加方便。It is more convenient to directly use the DC bus connected to the DCDC conversion circuit 12 without adding other components.

在本申请实施例中，当储能电池2进行放电时，DCDC转换电路12工作在升压(BOOST)模式。当对储能电池2进行充电时，DCDC转换电路12工作在降压(BUCK)模式。In the embodiment of the present application, when the energy storage battery 2 is discharging, the DCDC conversion circuit 12 operates in a boost (BOOST) mode. When charging the energy storage battery 2, the DCDC conversion circuit 12 operates in a buck (BUCK) mode.

根据本申请的一些实施例，控制储能电池通过转换电路进行放电包括：控制储能电池通过转换电路向外部设备进行放电，并且其中，控制储能电池通过转换电路进行充电包括：通过控制使得外部设备通过转换电路对储能电池进行充电。图4为本申请实施例提供的一种储能***的电池控制方法的流程图。参见图4，当步骤S102包括：控制储能电池通过转换电路进行交替充电和放电时，步骤S102可以包括：According to some embodiments of the present application, controlling the energy storage battery to discharge through the conversion circuit includes: controlling the energy storage battery to discharge to an external device through the conversion circuit, and wherein controlling the energy storage battery to charge through the conversion circuit includes: controlling the external device to discharge the energy storage battery through the conversion circuit. The device charges the energy storage battery through a conversion circuit. Figure 4 is a flow chart of a battery control method for an energy storage system provided by an embodiment of the present application. Referring to Figure 4, when step S102 includes: controlling the energy storage battery to alternately charge and discharge through the conversion circuit, step S102 may include:

步骤S123，控制储能电池通过转换电路向外部设备进行放电；步骤S124，通过控制使得外部设备通过转换电路对储能电池进行充电。Step S123, control the energy storage battery to discharge to the external device through the conversion circuit; Step S124, control the external device to charge the energy storage battery through the conversion circuit.

在储能***中，储能***中的电能主要供外部设备3使用，外部设备3中的电能和储能电池2中的电能可以相互转换。In the energy storage system, the electric energy in the energy storage system is mainly used by the external device 3, and the electric energy in the external device 3 and the electric energy in the energy storage battery 2 can be converted to each other.

在本申请实施例中，以外部设备3为电网为例，在步骤S123和S124前，需要闭合三相接触器6，保证外部设备3与储能电池2的连通。In the embodiment of this application, taking the external device 3 as the power grid as an example, before steps S123 and S124, the three-phase contactor 6 needs to be closed to ensure the connection between the external device 3 and the energy storage battery 2 .

在本申请的一些实施例中，步骤S123和步骤S124可依次交替进行，也即多次重复步骤S123和步骤S124以实现对储能电池2的加热。其中，步骤S123和步骤S124变换的频率可根据实际需求进行，本申请对此不作特殊限制。In some embodiments of the present application, step S123 and step S124 may be performed alternately in sequence, that is, step S123 and step S124 may be repeated multiple times to achieve heating of the energy storage battery 2 . The frequency conversion in steps S123 and S124 can be carried out according to actual needs, and this application does not place special restrictions on this.

在本申请实施例中，外部设备3是直接与储能***连接的，直接使用外部设备3对储能电池2进行充电或放电，则无需在储能***中布置其他的元器件对储能电池2进行充电或放电更加方便。In the embodiment of this application, the external device 3 is directly connected to the energy storage system, and the external device 3 is directly used to charge or discharge the energy storage battery 2. There is no need to arrange other components in the energy storage system to charge or discharge the energy storage battery. 2. Charging or discharging is more convenient.

根据本申请的一些实施例，转换电路1包括DCAC转换电路11，外部设备3为电网，DCAC转换电路11与电网连接。According to some embodiments of the present application, the conversion circuit 1 includes a DCAC conversion circuit 11, the external device 3 is a power grid, and the DCAC conversion circuit 11 is connected to the power grid.

电力***中各种电压的变电所及输配电线路组成的整体，称为电网，电力网的任务是输送与分配电能，改变电压。DCAC转换电路11将发电单元4输送的直流电转换为交流电供电网使用，使得整个储能***可以向电网供电，实现储能***的发电功能。The power grid consists of substations with various voltages and transmission and distribution lines. The power grid is responsible for transmitting and distributing electric energy and changing the voltage. The DCAC conversion circuit 11 converts the DC power delivered by the power generation unit 4 into AC power for use in the power supply network, so that the entire energy storage system can supply power to the power grid and realize the power generation function of the energy storage system.

根据本申请的一些实施例，图5为本申请实施例提供的一种储能***的电池控制方法的流程图。参见图5，该方法包括：According to some embodiments of the present application, FIG. 5 is a flow chart of a battery control method for an energy storage system provided by an embodiment of the present application. Referring to Figure 5, the method includes:

步骤S201，获取储能电池的电池温度；步骤S202，获取储能电池的电池电压；步骤S203，在电池温度小于预设温度，且电池电压大于预设电池电压的情况下，则执行对储能电池进行加热的操作。Step S201, obtain the battery temperature of the energy storage battery; Step S202, obtain the battery voltage of the energy storage battery; Step S203, when the battery temperature is less than the preset temperature and the battery voltage is greater than the preset battery voltage, perform the energy storage The battery performs heating operations.

在本申请实施例中，对储能电池进行加热的操作可以包括对储能电池进行充电或放电。储能电池2的电池电压可以通过BMS获得，BMS将电池电压发送给LEMS，LEMS通过电池电压判断储能电池2是否适合进行充电或放电的操作。In the embodiment of the present application, the operation of heating the energy storage battery may include charging or discharging the energy storage battery. The battery voltage of the energy storage battery 2 can be obtained through the BMS. The BMS sends the battery voltage to the LEMS. The LEMS uses the battery voltage to determine whether the energy storage battery 2 is suitable for charging or discharging operations.

在本申请实施例中，在对储能电池2进行充电或放电前先获取储能电池2的电池电压，通过电池电压判断储能电池2是否适合进行充电或放电的操作。在电池电压大于预设电池电压时，再执行对储能电池2进行充电或放电的操作，避免在电池电压太低的情况下，仍然对储能电池2进行放电的操作影响储能电池2的安全性能。In the embodiment of the present application, the battery voltage of the energy storage battery 2 is obtained before charging or discharging the energy storage battery 2, and whether the energy storage battery 2 is suitable for charging or discharging is determined based on the battery voltage. When the battery voltage is greater than the preset battery voltage, the operation of charging or discharging the energy storage battery 2 is then performed to avoid affecting the operation of the energy storage battery 2 by still discharging the energy storage battery 2 when the battery voltage is too low. Safety performance.

在本申请实施例中，当电池电压小于或等于预设电池电压，则不执行对储能电池进行加热的操作。In the embodiment of the present application, when the battery voltage is less than or equal to the preset battery voltage, the operation of heating the energy storage battery is not performed.

根据本申请的一些实施例，图6为本申请实施例提供的一种储能***的电池控制方法的流程图。参见图6，该方法包括：According to some embodiments of the present application, FIG. 6 is a flow chart of a battery control method for an energy storage system provided by an embodiment of the present application. Referring to Figure 6, the method includes:

步骤S301，获取储能电池的电池温度；步骤S302，获取储能电池的电池电压；步骤S303，获取储能电池的荷电状态；步骤S304，在电池温度小于预设温度，电池电压大于预设电池电压，且荷电状态大于预设荷电状态的情况下，执行对储能电池进行加热的操作。Step S301, obtain the battery temperature of the energy storage battery; Step S302, obtain the battery voltage of the energy storage battery; Step S303, obtain the state of charge of the energy storage battery; Step S304, when the battery temperature is less than the preset temperature and the battery voltage is greater than the preset temperature When the battery voltage is high and the state of charge is greater than the preset state of charge, the operation of heating the energy storage battery is performed.

在本申请实施例中，对储能电池进行加热的操作可以包括对储能电池进行充电或放电。储能电池2的荷电状态(State of Charge，SOC)可以通过BMS获得，BMS将荷电状态发送给LEMS，LEMS通过荷电状态判断储能电池2是否适合进行充电或放电的操作。In the embodiment of the present application, the operation of heating the energy storage battery may include charging or discharging the energy storage battery. The state of charge (SOC) of the energy storage battery 2 can be obtained through the BMS. The BMS sends the state of charge to the LEMS. The LEMS uses the state of charge to determine whether the energy storage battery 2 is suitable for charging or discharging operations.

在本申请实施例中，预设荷电状态大于或等于10％且小于或等于20％，例如预设荷电状态为15％。In the embodiment of the present application, the preset state of charge is greater than or equal to 10% and less than or equal to 20%, for example, the preset state of charge is 15%.

在本申请实施例中，上述步骤S302和步骤S303可以同时进行，也可以不同时进行，例如步骤S302在步骤S303前进行，或者步骤S303在步骤S302前进行，本申请对此不作限制。In the embodiment of the present application, the above-mentioned steps S302 and step S303 may be performed at the same time or not at the same time. For example, step S302 is performed before step S303, or step S303 is performed before step S302. This application does not limit this.

在本申请实施例中，在对储能电池2进行充电或放电前先获取储能电池2的荷电状态，通过荷电状态判断储能电池2是否适合进行充电或放电的操作。在荷电状态大于预设荷电状态时，再执行对储能电池2进行充电或放电的操作，避免在荷电状态太低的情况下，仍然对储能电池2进行放电的操作影响储能电池2的安全性能。In the embodiment of the present application, the state of charge of the energy storage battery 2 is obtained before charging or discharging the energy storage battery 2, and whether the energy storage battery 2 is suitable for charging or discharging is determined based on the state of charge. When the state of charge is greater than the preset state of charge, then perform the operation of charging or discharging the energy storage battery 2 to avoid affecting the energy storage by still discharging the energy storage battery 2 when the state of charge is too low. Safety performance of battery 2.

在本申请实施例中，当荷电状态小于或等于预设荷电状态，则不执行控制储能电池通过转换电路进行交替充电和放电的操作。In the embodiment of the present application, when the state of charge is less than or equal to the preset state of charge, the operation of controlling the energy storage battery to alternately charge and discharge through the conversion circuit is not performed.

在本申请实施例中，在执行步骤S304前，LEMS可以监测整个储能***是否存在故障，当整个储能***存在任意一处故障时，则不执行对储能电池2进行加热的操作。In the embodiment of the present application, before executing step S304, the LEMS can monitor whether there is a fault in the entire energy storage system. When there is any fault in the entire energy storage system, the operation of heating the energy storage battery 2 will not be performed.

根据本申请的一些实施例，图7为本申请实施例提供的一种储能***的电池控制方法的流程图。参见图7，该方法包括：According to some embodiments of the present application, FIG. 7 is a flow chart of a battery control method for an energy storage system provided by an embodiment of the present application. Referring to Figure 7, the method includes:

步骤S701，获取储能电池的电池温度；步骤S702，响应于电池温度小于预设温度，对储能电池进行加热；步骤S703，获取储能电池的工作状态信息；步骤S704，基于工作状态信息调整对储能电池进行加热的工作参数。Step S701, obtain the battery temperature of the energy storage battery; Step S702, in response to the battery temperature being less than the preset temperature, heat the energy storage battery; Step S703, obtain the working status information of the energy storage battery; Step S704, adjust based on the working status information Operating parameters for heating energy storage batteries.

在本申请实施例中，在对储能电池进行加热的过程中，获取储能电池的工作状态信息，并基于工作状态信息调整对储能电池的工作参数，使得储能电池在充电或放电的过程中的工作参数始终能够满足预设条件，保证对储能电池的加热速度，提高加热效率。In the embodiment of the present application, during the process of heating the energy storage battery, the working status information of the energy storage battery is obtained, and the working parameters of the energy storage battery are adjusted based on the working status information, so that the energy storage battery is charged or discharged. The working parameters in the process can always meet the preset conditions, ensuring the heating speed of the energy storage battery and improving the heating efficiency.

根据本申请的一些实施例，步骤S703，包括：获取储能电池通过转换电路进行充电或放电时的当前工作电流。其中，步骤S704包括：基于当前工作电流和预设条件，调整对储能电池进行加热的工作参数。According to some embodiments of the present application, step S703 includes: obtaining the current operating current of the energy storage battery when charging or discharging through the conversion circuit. Step S704 includes: adjusting the operating parameters for heating the energy storage battery based on the current operating current and preset conditions.

在本申请的一些实施例中，上述步骤S702可以包括：控制储能电池通过转换电路进行交替充电和放电；控制储能电池通过转换电路进行放电；和控制储能电池通过转换电路进行充电中至少一种。In some embodiments of the present application, the above step S702 may include: controlling the energy storage battery to alternately charge and discharge through the conversion circuit; controlling the energy storage battery to discharge through the conversion circuit; and controlling the energy storage battery to charge through the conversion circuit at least A sort of.

示例性地，可以在每一次的充电或放电过程中均会获取储能电池2通过转换电路1进行充电或者放电时的当前工作电流。对储能电池2的充电或者放电是脉冲进行的，充电和放电的频率可根据实际需求进行确定。For example, the current operating current when the energy storage battery 2 is charged or discharged through the conversion circuit 1 can be obtained during each charging or discharging process. Charging or discharging the energy storage battery 2 is performed in pulses, and the frequency of charging and discharging can be determined according to actual needs.

在本申请实施例中，在对储能电池进行加热的过程中，获取储能电池通过转换电路进行充电或放电时的当前工作电流，当当前工作电流不满足预设条件，则调整储能电池通过转换电路进行充电或放电时的工作电流，使得储能电池在充电或放电的过程中的工作电流始终能够满足预设条件，由于储能电池在充电或放电过程中的工作电流会影响储能电池加热的速度，从而通过调整充放电中的当前工作电流能够保证对储能电池的加热速度，提高加热效率。In the embodiment of the present application, during the process of heating the energy storage battery, the current operating current of the energy storage battery when charging or discharging through the conversion circuit is obtained. When the current operating current does not meet the preset conditions, the energy storage battery is adjusted. The working current when charging or discharging is carried out through the conversion circuit, so that the working current of the energy storage battery during the charging or discharging process can always meet the preset conditions, because the working current of the energy storage battery during the charging or discharging process will affect the energy storage The speed of battery heating, so that by adjusting the current operating current during charge and discharge, the heating speed of the energy storage battery can be guaranteed and the heating efficiency can be improved.

在本申请实施例中，如果当前工作电流满足预设条件，则不调整储能电池2通过转换电路1进行充电或放电时的工作电流。示例性地，预设条件可以为预设基准电流。In the embodiment of the present application, if the current operating current meets the preset conditions, the operating current when the energy storage battery 2 is charged or discharged through the conversion circuit 1 is not adjusted. For example, the preset condition may be a preset reference current.

在本申请的一些实施例中，调整后的工作参数与调整前的工作参数可以相同也可以不同。In some embodiments of the present application, the adjusted operating parameters may be the same as or different from the pre-adjusted operating parameters.

同时，储能电池在充电或放电的过程中工作电流具有上限值不能太大，工作电流太大会对储能电池的安全性能造成影响，通过本申请实施例提供的方法同样也可以保证储能电池的工作电流在安全范围内，避免由于当前工作电流太大造成储能电池损坏，甚至造成安全事故。At the same time, the working current of the energy storage battery during the charging or discharging process has an upper limit and cannot be too large. If the working current is too large, it will affect the safety performance of the energy storage battery. The method provided by the embodiment of this application can also ensure that the energy storage The working current of the battery is within a safe range to avoid damage to the energy storage battery or even safety accidents due to excessive current working current.

根据本申请的一些实施例，参见图1，转换电路1包括电流传感器13，电流传感器13被配置为检测储能电池2的工作电流。步骤S703包括：通过电流传感器获取储能电池通过转换电路进行充电或放电时的当前工作电流。According to some embodiments of the present application, referring to FIG. 1 , the conversion circuit 1 includes a current sensor 13 configured to detect the operating current of the energy storage battery 2 . Step S703 includes: using a current sensor to obtain the current operating current of the energy storage battery when it is charged or discharged through the conversion circuit.

如图1所示，电流传感器13与储能电池2连接，使得电流传感器13能够检测到储能电池通过转换电路进行充电或放电时的当前工作电流。As shown in Figure 1, the current sensor 13 is connected to the energy storage battery 2, so that the current sensor 13 can detect the current operating current when the energy storage battery is charged or discharged through the conversion circuit.

使用电流传感器13可以很方便地获取储能电池通过转换电路进行充电或放电时的当前工作电流。The current operating current of the energy storage battery when charging or discharging through the conversion circuit can be easily obtained using the current sensor 13.

在本申请实施例的一种实现方式中，电流传感器13为霍尔传感器。In an implementation manner of the embodiment of the present application, the current sensor 13 is a Hall sensor.

根据本申请的一些实施例，预设条件包括预设基准电压。图8为本申请实施例提供的一种储能***的电池控制方法的流程图。参见图8，步骤S704包括：According to some embodiments of the present application, the preset condition includes a preset reference voltage. Figure 8 is a flow chart of a battery control method for an energy storage system provided by an embodiment of the present application. Referring to Figure 8, step S704 includes:

步骤S741，基于当前工作电流获取储能电池通过转换电路进行充电或放电时的当前工作电压；步骤S742，基于当前工作电压和预设基准电压，调整储能电池通过转换电路进行充电或放电时的工作电流。Step S741: Obtain the current operating voltage of the energy storage battery when charging or discharging through the conversion circuit based on the current operating current; Step S742: Adjust the current operating voltage of the energy storage battery when charging or discharging through the conversion circuit based on the current operating voltage and the preset reference voltage. Working current.

在本申请实施例中，霍尔传感器可以检测出工作电流，然后输出与工作电流相对应的工作电压。In the embodiment of the present application, the Hall sensor can detect the working current and then output the working voltage corresponding to the working current.

储能电池2的工作电流与工作电压具有对应的关系，可以根据当前工作电流确定出相对应的当前工作电压，然后根据当前工作电压与预设基准电压的关系，判断储能电池2通过转换电路进1行充电或放电时的工作电流与预设基准电流的关系。The working current of the energy storage battery 2 has a corresponding relationship with the working voltage. The corresponding current working voltage can be determined based on the current working current, and then based on the relationship between the current working voltage and the preset reference voltage, it is judged that the energy storage battery 2 passes the conversion circuit The relationship between the operating current and the preset reference current when charging or discharging.

在本申请实施例中，DCDC转换电路12通过DCDC控制板122进行控制，图9为本申请实施例提供的一种DCDC控制板的电路图。参见图9，DCDC控制板122包括中央处理器(Central Processing Unit，CPU)1221、可控电源芯片1222、差分放大器1223和跟随器1224。CPU1221与可控电源芯片1222连接，可控电源芯片1222与差分放大器1223连接，差分放大器1223与跟随器1224连接，跟随器1224与CPU1221连接，同时差分放大器1223与霍尔传感器的输出端连接。霍尔传感器的输出端输出工作电压Vout给差分放大器1223，CPU1221控制可控电源芯片1222输出预设基准电压Vref给差分放大器1223，差分放大器1223比较工作电压Vout和预设基准电压Vref的大小关系。其中跟随器1224用于对差分放大器1223输出的结果进行滤波等操作，保证差分放大器1223输出的结果的稳定性，同时跟随器1224将结果输出给CPU1221，CPU1221根据工作电压Vout和预设基准电压Vref的关系，判断工作电流是否满足预设条件。In the embodiment of the present application, the DCDC conversion circuit 12 is controlled by the DCDC control board 122. FIG. 9 is a circuit diagram of a DCDC control board provided in the embodiment of the present application. Referring to Figure 9, the DCDC control board 122 includes a central processing unit (Central Processing Unit, CPU) 1221, a controllable power chip 1222, a differential amplifier 1223 and a follower 1224. CPU1221 is connected to the controllable power chip 1222, the controllable power chip 1222 is connected to the differential amplifier 1223, the differential amplifier 1223 is connected to the follower 1224, the follower 1224 is connected to the CPU1221, and the differential amplifier 1223 is connected to the output end of the Hall sensor. The output terminal of the Hall sensor outputs the working voltage Vout to the differential amplifier 1223. The CPU 1221 controls the controllable power chip 1222 to output the preset reference voltage Vref to the differential amplifier 1223. The differential amplifier 1223 compares the working voltage Vout with the preset reference voltage Vref. The follower 1224 is used to filter the results output by the differential amplifier 1223 to ensure the stability of the results output by the differential amplifier 1223. At the same time, the follower 1224 outputs the results to the CPU 1221. The CPU 1221 operates according to the operating voltage Vout and the preset reference voltage Vref. relationship to determine whether the operating current meets the preset conditions.

在本申请实施例中，霍尔传感器监测的工作电流Iout，可控电源芯片1222输出的是预设基准电压Vref，在实际的比较中，可以根据Vref实际对应的预设基准电流Iref与工作电流Iout的关系确定工作电流Iout是否满足预设条件。In the embodiment of the present application, the working current Iout monitored by the Hall sensor and the controllable power chip 1222 output is the preset reference voltage Vref. In the actual comparison, the preset reference current Iref and the working current corresponding to Vref can be actually The relationship of Iout determines whether the operating current Iout meets the preset conditions.

示例性地，当工作电流Iout为变化的直流电流，假设工作电流Iout波形为正弦波，图10为本申请实施例提供的一种工作电流的波形图。图11为本申请实施例提供的另一种工作电流的波形图。参见图10和图11，当工作电流Iout最大值小于预设基准电流Iref，则工作电流Iout的波形与预设基准电流Iref的基准线的交点为0，Iout输出为低电平；当工作电流Iout最大值等于预设基准电流Iref，则两者交点为1；当工作电流Iout最大值大于预设基准电流Iref，则两者交点为2，Iout输出为高电平。可以根据二者交点位置和时间调节工作电流Iout。图10和图11的区别在于，在图10中工作电流Iout的变化规律是一样的，预设基准电流Iref(Iref1、Iref2、Iref3)是不同的，在图11中工作电流Iout的变化规律不同，预设基准电流Iref是一定的。图10和图11仅作为一种解释说明，并不代表实际的工作电流Iout和预设基准电流Iref。For example, when the operating current Iout is a changing DC current, assuming that the waveform of the operating current Iout is a sine wave, FIG. 10 is a waveform diagram of an operating current provided by an embodiment of the present application. Figure 11 is a waveform diagram of another operating current provided by an embodiment of the present application. Referring to Figure 10 and Figure 11, when the maximum value of the operating current Iout is less than the preset reference current Iref, the intersection point between the waveform of the operating current Iout and the baseline of the preset reference current Iref is 0, and the Iout output is low level; when the operating current The maximum value of Iout is equal to the preset reference current Iref, and the intersection point between the two is 1; when the maximum value of the operating current Iout is greater than the preset reference current Iref, the intersection point between the two is 2, and the Iout output is high level. The operating current Iout can be adjusted according to the intersection position and time of the two. The difference between Figure 10 and Figure 11 is that in Figure 10, the changing pattern of the operating current Iout is the same, but the preset reference current Iref (Iref1, Iref2, Iref3) is different. In Figure 11, the changing pattern of the operating current Iout is different. , the preset reference current Iref is certain. Figures 10 and 11 are only for explanation and do not represent the actual operating current Iout and the preset reference current Iref.

图12本申请实施例提供的一种储能***的框图。参见图12，PCS控制板、DCDC控制板以及BMS之间相互通讯连接。Figure 12 is a block diagram of an energy storage system provided by an embodiment of this application. Referring to Figure 12, the PCS control board, DCDC control board and BMS communicate with each other.

在本申请实施例的一种实现方式中，步骤S742包括：响应于当前工作电压大于预设基准电压，减小储能电池通过转换电路进行充电或放电时的工作电流。In an implementation manner of the embodiment of the present application, step S742 includes: in response to the current operating voltage being greater than the preset reference voltage, reducing the operating current of the energy storage battery when charging or discharging through the conversion circuit.

当储能电池2的当前工作电流大于预设基准电压，说明当前工作电流过大，可能会影响***的安全性能，减小当前工作电流从而保证储能***的安全性能。When the current working current of the energy storage battery 2 is greater than the preset reference voltage, it means that the current working current is too large, which may affect the safety performance of the system. Reduce the current working current to ensure the safety performance of the energy storage system.

在本申请实施例的另一种实现方式中，步骤S742包括：响应于当前工作电压小于预设基准电压，增大储能电池通过转换电路进行充电或放电时的工作电流。In another implementation manner of the embodiment of the present application, step S742 includes: in response to the current operating voltage being less than the preset reference voltage, increasing the operating current of the energy storage battery when charging or discharging through the conversion circuit.

当储能电池2的当前工作电流小预设基准电压，说明当前工作电流过小，影响加热效率，增大当前工作电流保证加热效率。When the current working current of the energy storage battery 2 is less than the preset reference voltage, it means that the current working current is too small, which affects the heating efficiency. Increase the current working current to ensure the heating efficiency.

本申请的一些实施例提供了一种储能***的电池控制装置，图13本申请实施例提供的一种储能***的电池控制装置的框图。参见图13，储能***的电池控制装置包括：第一获取模块401和控制模块402。其中，第一获取模块401被配置为获取储能电池的电池温度。控制模块402被配置为响应于电池温度小于预设温度，对储能电池进行加热。Some embodiments of the present application provide a battery control device for an energy storage system. Figure 13 is a block diagram of a battery control device for an energy storage system provided by embodiments of the present application. Referring to Figure 13, the battery control device of the energy storage system includes: a first acquisition module 401 and a control module 402. Among them, the first acquisition module 401 is configured to acquire the battery temperature of the energy storage battery. The control module 402 is configured to heat the energy storage battery in response to the battery temperature being less than the preset temperature.

在本申请实施例的一些实施例中，控制模块402被配置为执行以下加热策略中的至少一种：控制储能电池通过转换电路进行交替充电和放电；控制储能电池通过转换电路进行充电；以及控制储能电池通过转换电路进行放电。In some embodiments of the present application, the control module 402 is configured to perform at least one of the following heating strategies: control the energy storage battery to alternately charge and discharge through the conversion circuit; control the energy storage battery to charge through the conversion circuit; and controlling the discharge of the energy storage battery through the conversion circuit.

在本申请实施例的一种实现方式中，转换电路包括电容，图14本申请实施例提供的一种储能***的电池控制装置的框图。参见图14，控制模块402包括：第一控制单元421和第二控制单元422，第一控制单元421被配置为控制储能电池向电容进行放电；第二控制单元422被配置为控制电容对储能电池进行充电。In an implementation manner of the embodiment of the present application, the conversion circuit includes a capacitor. Figure 14 is a block diagram of a battery control device of an energy storage system provided by an embodiment of the present application. Referring to Figure 14, the control module 402 includes: a first control unit 421 and a second control unit 422. The first control unit 421 is configured to control the energy storage battery to discharge to the capacitor; the second control unit 422 is configured to control the capacitor to discharge the energy storage battery. The battery can be charged.

在本申请实施例中，转换电路包括直流母线，电容设置在直流母线上。In this embodiment of the present application, the conversion circuit includes a DC bus, and the capacitor is arranged on the DC bus.

在本申请实施例的一种实现方式中，转换电路包括DCAC转换电路，直流母线与DCAC转换电路的直流端连接，DCAC转换电路的交流端与外部设备连接。In an implementation manner of the embodiment of the present application, the conversion circuit includes a DCAC conversion circuit, the DC bus is connected to the DC end of the DCAC conversion circuit, and the AC end of the DCAC conversion circuit is connected to the external device.

在本申请实施例的另一种实现方式中，转换电路包括DCDC转换电路，直流母线与DCDC转换电路的母线端连接，DCDC转换电路的电池端与储能电池连接。In another implementation manner of the embodiment of the present application, the conversion circuit includes a DCDC conversion circuit, the DC bus is connected to the bus terminal of the DCDC conversion circuit, and the battery terminal of the DCDC conversion circuit is connected to the energy storage battery.

图15本申请实施例提供的一种储能***的电池控制装置的框图。参见图15，控制模块402包括：第三控制单元423和第四控制单元424，第三控制单元423被配置为控制储能电池通过转换电路向外部设备进行放电；第四控制单元424被配置为通过控制使得外部设备通过转换电路对储能电池进行充电。Figure 15 is a block diagram of a battery control device of an energy storage system provided by an embodiment of the present application. Referring to Figure 15, the control module 402 includes: a third control unit 423 and a fourth control unit 424. The third control unit 423 is configured to control the energy storage battery to discharge to the external device through the conversion circuit; the fourth control unit 424 is configured to The external device is controlled to charge the energy storage battery through the conversion circuit.

在本申请实施例中，转换电路包括DCAC转换电路，外部设备为电网，DCAC转换电路与电网连接。In the embodiment of this application, the conversion circuit includes a DCAC conversion circuit, the external device is a power grid, and the DCAC conversion circuit is connected to the power grid.

在本申请实施例中，图16本申请实施例提供的一种储能***的电池控制装置的框图。参见图16，装置还包括第三获取模块405，第三获取模块405被配置为获取储能电池的电池电压。控制模块402被配置为在电池电压大于预设电池电压的情况下，则执行对储能电池进行加热的操作。In an embodiment of the present application, FIG16 is a block diagram of a battery control device for an energy storage system provided in an embodiment of the present application. Referring to FIG16 , the device further includes a third acquisition module 405, which is configured to acquire a battery voltage of the energy storage battery. The control module 402 is configured to perform an operation of heating the energy storage battery when the battery voltage is greater than a preset battery voltage.

在本申请实施例中，参见图16，装置还包括第四获取模块406，第四获取模块406被配置获取储能电池的荷电状态。控制模块402被配置为在荷电状态大于预设荷电状态的情况下，则执行对储能电池进行加热的操作。In the embodiment of the present application, referring to Figure 16, the device further includes a fourth acquisition module 406, which is configured to acquire the state of charge of the energy storage battery. The control module 402 is configured to perform an operation of heating the energy storage battery when the state of charge is greater than the preset state of charge.

在本申请实施例中，参见图16，装置还包括第二获取模块403和调整模块404。第二获取模块403被配置为获取储能电池的工作状态信息。调整模块404被配置为基于工作状态信息调整对储能电池进行加热的工作参数。In the embodiment of the present application, referring to Figure 16, the device also includes a second acquisition module 403 and an adjustment module 404. The second acquisition module 403 is configured to acquire the working status information of the energy storage battery. The adjustment module 404 is configured to adjust the operating parameters for heating the energy storage battery based on the operating status information.

在本申请实施例中，第二获取模块403被配置为获取储能电池通过转换电路进行充电或放电时的当前工作电流。调整模块404被配置为基于当前工作电流和预设条件，调整对储能电池进行加热的工作参数。In this embodiment of the present application, the second acquisition module 403 is configured to acquire the current operating current of the energy storage battery when it is charged or discharged through the conversion circuit. The adjustment module 404 is configured to adjust the operating parameters for heating the energy storage battery based on the current operating current and preset conditions.

在本申请实施例中，转换电路包括电流传感器，电流传感器被配置为检测储能电池的工作电流。第二获取模块403被配置为通过电流传感器获取储能电池通过转换电路进行充电或放电时的当前工作电流。In the embodiment of the present application, the conversion circuit includes a current sensor, and the current sensor is configured to detect the operating current of the energy storage battery. The second acquisition module 403 is configured to acquire the current operating current of the energy storage battery when charging or discharging through the conversion circuit through the current sensor.

在本申请实施例中，预设条件包括预设基准电压，图17本申请实施例提供的一种储能***的电池控制装置的框图。参见图17，调整模块404包括获取单元441和调整单元442，获取单元441被配置为基于当前工作电流获取储能电池通过转换电路进行充电或放电时的当前工作电压。调整单元442被配置为基于当前工作电压和预设基准电压，调整储能电池通过转换电路进行充电或放电时的工作电流。In this embodiment of the present application, the preset condition includes a preset reference voltage. Figure 17 is a block diagram of a battery control device of an energy storage system provided by an embodiment of this application. Referring to Figure 17, the adjustment module 404 includes an acquisition unit 441 and an adjustment unit 442. The acquisition unit 441 is configured to acquire the current operating voltage of the energy storage battery when it is charged or discharged through the conversion circuit based on the current operating current. The adjustment unit 442 is configured to adjust the operating current of the energy storage battery when charging or discharging through the conversion circuit based on the current operating voltage and the preset reference voltage.

在本申请实施例中，调整单元442被配置为响应于当前工作电压大于预设基准电压，减小储能电池通过转换电路进行充电或放电时的工作电流。In this embodiment of the present application, the adjustment unit 442 is configured to reduce the operating current of the energy storage battery when charging or discharging through the conversion circuit in response to the current operating voltage being greater than the preset reference voltage.

在本申请实施例中，调整单元442还被配置为响应于当前工作电压小于预设基准电压，增大储能电池通过转换电路进行充电或放电时的工作电流。In this embodiment of the present application, the adjustment unit 442 is further configured to increase the operating current of the energy storage battery when charging or discharging through the conversion circuit in response to the current operating voltage being less than the preset reference voltage.

本申请的一些实施例提供了一种储能***，储能***包括转换电路、储能电池和上述实施例中的电池控制装置，转换电路与储能电池连接，储能电池通过转换电路向外部设备放电。Some embodiments of the present application provide an energy storage system. The energy storage system includes a conversion circuit, an energy storage battery, and the battery control device in the above embodiments. The conversion circuit is connected to the energy storage battery, and the energy storage battery transmits electricity to the outside through the conversion circuit. The device is discharged.

本申请实施例提供的储能***能实现对储能电池的加热。The energy storage system provided by the embodiment of the present application can realize heating of the energy storage battery.

本申请的一些实施例提供了一种电子设备，设备包括：至少一个处理器；以及，与至少一个处理器通信连接的存储器；存储器存储有可被至少一个处理器执行的指令，指令被至少一个处理器执行，以使至少一个处理器能够执行上述实施例中的方法。Some embodiments of the present application provide an electronic device, which includes: at least one processor; and a memory communicatively connected to the at least one processor; the memory stores instructions that can be executed by at least one processor, and the instructions are executed by at least one processor. The processor executes, so that at least one processor can execute the method in the above embodiment.

本申请的一些实施例提供了一种计算机可读存储介质，存储有计算机程序，计算机程序被处理器执行时实现上述实施例中的方法。例如，非临时性计算机可读存储介质可以是ROM、随机存取存储器(RAM)、CD-ROM、磁带、软盘和光数据存储设备等。Some embodiments of the present application provide a computer-readable storage medium that stores a computer program. When the computer program is executed by a processor, the method in the above embodiments is implemented. For example, non-transitory computer-readable storage media may be ROM, random access memory (RAM), CD-ROM, magnetic tape, floppy disk, optical data storage device, etc.

本申请的一些实施例提供了一种计算机程序产品，包括计算机程序，该计算机程序被处理器执行时实现上述实施例中的方法。该计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行这些计算机指令时，可以全部或部分地按照本申请实施例中的流程或功能实现上述方法中的部分或者全部。Some embodiments of the present application provide a computer program product, including a computer program, which implements the methods in the above embodiments when executed by a processor. The computer program product includes one or more computer instructions. When these computer instructions are loaded and executed on a computer, some or all of the above methods may be implemented in whole or in part according to the processes or functions in the embodiments of the present application.

本申请实施例提供了一种储能***的电池控制方法，通过该方法可以提高对储能电池的加热效率，保证储能电池能够正常工作。该方法主要有两种表现形式，下面对该方法的两种表现形式进行介绍。Embodiments of the present application provide a battery control method for an energy storage system, through which the heating efficiency of the energy storage battery can be improved and the normal operation of the energy storage battery can be ensured. This method mainly has two forms of expression. The two forms of expression of this method are introduced below.

图18为本申请实施例提供的一种储能***的电池控制方法的流程图。参见图18，该方法包括：Figure 18 is a flow chart of a battery control method for an energy storage system provided by an embodiment of the present application. Referring to Figure 18, the method includes:

步骤S501，获取储能电池的电池温度。步骤S502，获取储能电池的电池电压。步骤S503，获取储能电池的荷电状态。步骤S504，响应于电池温度小于预设温度，且电池电压大于预设电池电压，且荷电状态大于预设荷电状态，则执行控制储能电池向电容进行放电和控制电容对储能电池进行充电。步骤S505，获取储能电池通过转换电路进行交替充电和放电时的工作电流。步骤S506，响应于工作电流不满足预设条件，调整储能电池通过转换电路进行交替充电和放电时的工作电流。Step S501: Obtain the battery temperature of the energy storage battery. Step S502: Obtain the battery voltage of the energy storage battery. Step S503: Obtain the state of charge of the energy storage battery. Step S504, in response to the battery temperature being less than the preset temperature, the battery voltage being greater than the preset battery voltage, and the state of charge being greater than the preset state of charge, controlling the energy storage battery to discharge the capacitor and controlling the capacitor to discharge the energy storage battery. Charge. Step S505: Obtain the operating current when the energy storage battery is alternately charged and discharged through the conversion circuit. Step S506: In response to the operating current not meeting the preset conditions, adjust the operating current when the energy storage battery is alternately charged and discharged through the conversion circuit.

图19为本申请实施例提供的另一种储能***的电池控制方法的流程图。参见图19，该方法包括：Figure 19 is a flow chart of another battery control method for an energy storage system provided by an embodiment of the present application. Referring to Figure 19, the method includes:

步骤S601，获取储能电池的电池温度。步骤S602，获取储能电池的电池电压。步骤S603，获取储能电池的荷电状态。步骤S604，响应于电池温度小于预设温度，且电池电压大于预设电池电压，且荷电状态大于预设荷电状态，则执行控制储能电池通过转换电路向外部设备进行放电和通过控制使得外部设备通过转换电路对储能电池进行充电。步骤S605，获取储能电池通过转换电路进行交替充电和放电时的工作电流。步骤S606，响应于工作电流不满足预设条件，调整储能电池通过转换电路进行交替充电和放电时的工作电流。Step S601: Obtain the battery temperature of the energy storage battery. Step S602: Obtain the battery voltage of the energy storage battery. Step S603: Obtain the state of charge of the energy storage battery. Step S604, in response to the battery temperature being less than the preset temperature, the battery voltage being greater than the preset battery voltage, and the state of charge being greater than the preset state of charge, the energy storage battery is controlled to discharge to the external device through the conversion circuit and controlled so that The external device charges the energy storage battery through the conversion circuit. Step S605: Obtain the operating current when the energy storage battery is alternately charged and discharged through the conversion circuit. Step S606: In response to the operating current not meeting the preset conditions, adjust the operating current of the energy storage battery when it is alternately charged and discharged through the conversion circuit.

最后应说明的是：以上各实施例仅用以说明本申请的技术方案，而非对其限制；尽管参照前述各实施例对本申请进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分或者全部技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本申请各实施例技术方案的范围，其均应涵盖在本申请的权利要求和说明书的范围当中。尤其是，只要不存在结构冲突，各个实施例中所提到的各项技术特征均可以任意方式组合起来。本申请并不局限于文中公开的特定实施例，而是包括落入权利要求的范围内的所有技术方案。Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present application, but not to limit it; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: The technical solutions described in the foregoing embodiments can still be modified, or some or all of the technical features can be equivalently replaced; and these modifications or substitutions do not deviate from the essence of the corresponding technical solutions from the technical solutions of the embodiments of the present application. The scope shall be covered by the claims and description of this application. In particular, as long as there is no structural conflict, the technical features mentioned in the various embodiments can be combined in any way. The application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

一种储能***的电池控制方法，所述储能***包括转换电路和储能电池，所述转换电路与所述储能电池连接，所述储能电池通过所述转换电路向外部设备放电，所述方法包括：A battery control method for an energy storage system. The energy storage system includes a conversion circuit and an energy storage battery. The conversion circuit is connected to the energy storage battery. The energy storage battery discharges to an external device through the conversion circuit. The methods include:

获取所述储能电池的电池温度；Obtain the battery temperature of the energy storage battery;

响应于所述电池温度小于预设温度，对所述储能电池进行加热。In response to the battery temperature being less than a preset temperature, the energy storage battery is heated.
根据权利要求1所述的电池控制方法，其中，所述对所述储能电池进行加热，包括以下加热策略中的至少一项：The battery control method according to claim 1, wherein heating the energy storage battery includes at least one of the following heating strategies:

控制所述储能电池通过所述转换电路进行交替充电和放电；Control the energy storage battery to alternately charge and discharge through the conversion circuit;

控制所述储能电池通过所述转换电路进行充电；以及Control the energy storage battery to be charged through the conversion circuit; and

控制所述储能电池通过所述转换电路进行放电。The energy storage battery is controlled to discharge through the conversion circuit.
根据权利要求2所述的电池控制方法，其中，所述转换电路包括电容，The battery control method according to claim 2, wherein the conversion circuit includes a capacitor,

其中，控制所述储能电池通过所述转换电路进行放电包括：Wherein, controlling the energy storage battery to discharge through the conversion circuit includes:

控制所述储能电池向所述电容进行放电，Control the energy storage battery to discharge to the capacitor,

并且其中，控制所述储能电池通过所述转换电路进行充电包括：And wherein, controlling the energy storage battery to charge through the conversion circuit includes:

控制所述电容对所述储能电池进行充电。The capacitor is controlled to charge the energy storage battery.
根据权利要求3所述的电池控制方法，其中，所述转换电路包括直流母线，所述电容设置在所述直流母线上。The battery control method according to claim 3, wherein the conversion circuit includes a DC bus, and the capacitor is disposed on the DC bus.
根据权利要求4所述的电池控制方法，其中，所述转换电路包括DCAC转换电路，所述直流母线与所述DCAC转换电路的直流端连接，所述DCAC转换电路的交流端与所述外部设备连接。The battery control method according to claim 4, wherein the conversion circuit includes a DCAC conversion circuit, the DC bus is connected to a DC end of the DCAC conversion circuit, and the AC end of the DCAC conversion circuit is connected to the external device. connect.
根据权利要求4所述的电池控制方法，其中，所述转换电路包括DCDC转换电路，所述直流母线与所述DCDC转换电路的母线端连接，所述DCDC转换电路的电池端与所述储能电池连接。The battery control method according to claim 4, wherein the conversion circuit includes a DCDC conversion circuit, the DC bus is connected to a bus end of the DCDC conversion circuit, and the battery end of the DCDC conversion circuit is connected to the energy storage Battery connection.
根据权利要求2所述的电池控制方法，其中，控制所述储能电池通过所述转换电路进行放电包括：The battery control method according to claim 2, wherein controlling the energy storage battery to discharge through the conversion circuit includes:

控制所述储能电池通过所述转换电路向所述外部设备进行放电，Controlling the energy storage battery to discharge to the external device through the conversion circuit,

并且其中，控制所述储能电池通过所述转换电路进行充电包括：And wherein, controlling the energy storage battery to charge through the conversion circuit includes:

通过控制使得所述外部设备通过所述转换电路对所述储能电池进行充电。The external device is controlled to charge the energy storage battery through the conversion circuit.
根据权利要求7所述的电池控制方法，其中，所述转换电路包括DCAC转换电路，所述外部设备为电网，所述DCAC转换电路与所述电网连接。The battery control method according to claim 7, wherein the conversion circuit includes a DCAC conversion circuit, the external device is a power grid, and the DCAC conversion circuit is connected to the power grid.
根据权利要求1至8中任一项所述的电池控制方法，其中，对所述储能电池进行加热之前，所述方法还包括：The battery control method according to any one of claims 1 to 8, wherein before heating the energy storage battery, the method further includes:

获取所述储能电池的电池电压，Obtain the battery voltage of the energy storage battery,

其中，对所述储能电池进行加热，包括：Wherein, heating the energy storage battery includes:

在所述电池电压大于预设电池电压的情况下，则执行对所述储能电池进行加热的操作。When the battery voltage is greater than the preset battery voltage, an operation of heating the energy storage battery is performed.
根据权利要求1至8中任一项所述的电池控制方法，其中，对所述储能电池进行加热之前，所述方法还包括：The battery control method according to any one of claims 1 to 8, wherein before heating the energy storage battery, the method further includes:

获取所述储能电池的荷电状态，Obtain the state of charge of the energy storage battery,

其中，对所述储能电池进行加热，包括：Wherein, heating the energy storage battery includes:

在所述荷电状态大于预设荷电状态的情况下，则执行对所述储能电池进行加热的操作。When the state of charge is greater than the preset state of charge, an operation of heating the energy storage battery is performed.
根据权利要求2至8中任一项所述的电池控制方法，所述方法还包括：The battery control method according to any one of claims 2 to 8, further comprising:

在对所述储能电池进行加热的过程中，获取所述储能电池的工作状态信息；In the process of heating the energy storage battery, obtain the working status information of the energy storage battery;

基于所述工作状态信息调整对所述储能电池进行加热的工作参数。The operating parameters for heating the energy storage battery are adjusted based on the operating status information.
根据权利要求11所述的电池控制方法，其中，所述获取所述储能电池的工作状态信息，包括：获取所述储能电池通过所述转换电路进行充电或放电时的当前工作电流，The battery control method according to claim 11, wherein said obtaining the working status information of the energy storage battery includes: obtaining the current operating current when the energy storage battery is charged or discharged through the conversion circuit,

其中，基于所述工作状态信息调整对所述储能电池进行加热的工作参数包括：Wherein, adjusting the working parameters for heating the energy storage battery based on the working status information includes:

基于所述当前工作电流和预设条件，调整对所述储能电池进行加热的工作参数。Based on the current operating current and preset conditions, the operating parameters for heating the energy storage battery are adjusted.
根据权利要求12所述的电池控制方法，其中，所述转换电路包括电流传感器，所述电流传感器被配置为检测所述储能电池的工作电流，The battery control method according to claim 12, wherein the conversion circuit includes a current sensor configured to detect the operating current of the energy storage battery,

其中，获取所述储能电池通过所述转换电路进行充电或放电时的当前工作电流，包括：Wherein, obtaining the current operating current of the energy storage battery when charging or discharging through the conversion circuit includes:

通过所述电流传感器获取所述储能电池通过所述转换电路进行充电或放电时的当前工作电流。The current operating current of the energy storage battery when charging or discharging through the conversion circuit is obtained through the current sensor.
根据权利要求13所述的电池控制方法，其中，所述预设条件包括预设基准电压，并且其中基于所述工作状态信息调整对所述储能电池进行加热的工作参数，包括：The battery control method according to claim 13, wherein the preset condition includes a preset reference voltage, and wherein the operating parameters for heating the energy storage battery are adjusted based on the operating status information, including:

基于所述当前工作电流获取所述储能电池通过所述转换电路进行充电或放电时的当前工作电压；Obtain the current operating voltage of the energy storage battery when charging or discharging through the conversion circuit based on the current operating current;

基于所述当前工作电压和预设基准电压，调整所述储能电池通过所述转换电路进行充电或放电时的工作电流。Based on the current operating voltage and the preset reference voltage, the operating current of the energy storage battery when charging or discharging through the conversion circuit is adjusted.
根据权利要求14所述的电池控制方法，其中，基于所述当前工作电压和预设基准电压，调整所述储能电池通过所述转换电路进行充电或放电时的工作电流，包括：The battery control method according to claim 14, wherein, based on the current operating voltage and the preset reference voltage, adjusting the operating current of the energy storage battery when charging or discharging through the conversion circuit includes:

响应于所述当前工作电压大于所述预设基准电压，减小所述储能电池通过所述转换电路进行充电或放电时的工作电流。In response to the current operating voltage being greater than the preset reference voltage, the operating current of the energy storage battery when charging or discharging through the conversion circuit is reduced.
根据权利要求14所述的电池控制方法，其中，基于所述当前工作电压和预设基准电压，调整所述储能电池通过所述转换电路进行充电或放电时的工作电流，包括：The battery control method according to claim 14, wherein, based on the current operating voltage and the preset reference voltage, adjusting the operating current of the energy storage battery when charging or discharging through the conversion circuit includes:

响应于所述当前工作电压小于所述预设基准电压，增大所述储能电池通过所述转换电路进行充电或放电时的工作电流。In response to the current operating voltage being less than the preset reference voltage, the operating current of the energy storage battery when charging or discharging through the conversion circuit is increased.
一种储能***的电池控制装置，包括：A battery control device for an energy storage system, including:

第一获取模块，被配置为获取储能电池的电池温度；The first acquisition module is configured to acquire the battery temperature of the energy storage battery;

控制模块，被配置为响应于所述电池温度小于预设温度，对所述储能电池进行加热。A control module configured to heat the energy storage battery in response to the battery temperature being less than a preset temperature.
一种储能***，包括转换电路、储能电池和如权利要求17所述的电池控制装置，所述转换电路与所述储能电池连接，所述储能电池通过所述转换电路向外部设备放电。An energy storage system, including a conversion circuit, an energy storage battery and a battery control device as claimed in claim 17, the conversion circuit is connected to the energy storage battery, and the energy storage battery transmits electricity to an external device through the conversion circuit. Discharge.
一种电子设备，包括：An electronic device including:

至少一个处理器；以及，at least one processor; and,

与所述至少一个处理器通信连接的存储器；其中，a memory communicatively connected to the at least one processor; wherein,

所述存储器存储有可被所述至少一个处理器执行的指令，所述指令被所述至少一个处理器执行，以使所述至少一个处理器能够执行如权利要求1至16中任一项所述的方法。The memory stores instructions executable by the at least one processor, the instructions being executed by the at least one processor, so that the at least one processor can perform as claimed in any one of claims 1 to 16 method described.
一种计算机可读存储介质，存储有计算机程序，所述计算机程序被处理器执行时实现权利要求1至16中任一项所述的方法。A computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the method according to any one of claims 1 to 16 is implemented.
一种计算机程序产品，包括计算机程序，该计算机程序被处理器执行时实现权利要求1至16中任一项所述的方法。A computer program product includes a computer program that implements the method of any one of claims 1 to 16 when executed by a processor.