CN111682604B - Control method and device of energy storage product and electronic equipment - Google Patents
Control method and device of energy storage product and electronic equipment Download PDFInfo
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- CN111682604B CN111682604B CN202010436027.0A CN202010436027A CN111682604B CN 111682604 B CN111682604 B CN 111682604B CN 202010436027 A CN202010436027 A CN 202010436027A CN 111682604 B CN111682604 B CN 111682604B
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0068—Battery or charger load switching, e.g. concurrent charging and load supply
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
- H02J3/381—Dispersed generators
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/0031—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits using battery or load disconnect circuits
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0063—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with circuits adapted for supplying loads from the battery
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/35—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering with light sensitive cells
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J2300/00—Systems for supplying or distributing electric power characterised by decentralized, dispersed, or local generation
- H02J2300/20—The dispersed energy generation being of renewable origin
- H02J2300/22—The renewable source being solar energy
- H02J2300/24—The renewable source being solar energy of photovoltaic origin
- H02J2300/26—The renewable source being solar energy of photovoltaic origin involving maximum power point tracking control for photovoltaic sources
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/56—Power conversion systems, e.g. maximum power point trackers
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The embodiment of the invention relates to the technical field of energy storage, in particular to a control method and device of an energy storage product and electronic equipment. The method comprises the following steps: judging whether the charge parameter of the battery is larger than a preset maximum charge parameter or not; if so, controlling the charger to stop inputting current to the battery; controlling the charger to operate at maximum power. By the method, the current input to the battery can be stopped in time when the battery is fully charged, so that the charger can be controlled to operate at the maximum power, and further benefits are created for users.
Description
Technical Field
The embodiment of the invention relates to the technical field of energy storage, in particular to a control method and device of an energy storage product and electronic equipment.
Background
The energy storage product is a product which converts light energy into electric energy, and then carries out current conversion through an inverter to store the electric energy, and supplies power to a load or feeds power to a power grid. With the development of electric storage batteries and photovoltaic power generation technologies and the improvement of the demand of people for clean energy, energy storage products are more and more concerned by people and are more and more widely applied. For example, in the places where power needs to be prepared, such as household electrical appliances, outdoor electrical appliances, remote mountainous areas where the power grid is unstable and lacks power, and the like.
However, in implementing the embodiments of the present invention, the inventors found that: the energy storage product provided by the prior art mostly adopts multi-section charging, wherein the constant voltage charging process can be regarded as a process of reducing charging current, the photovoltaic deviates from the maximum power point to operate in the process, the photovoltaic can not be fully utilized, and great economic loss is brought to users.
Disclosure of Invention
The technical problem mainly solved by the embodiments of the present invention is to provide a method and an apparatus for controlling an energy storage product, and an electronic device, which overcome or at least partially solve the above problems.
According to an aspect of an embodiment of the present invention, there is provided a control method of an energy storage product including a charger, a battery, an inverter, a load, and a grid, the charger being connected to the battery and the inverter, the inverter being connected to the battery, the load, and the grid, the method including: judging whether the charge parameter of the battery is larger than a preset maximum charge parameter or not; if so, controlling the charger to stop inputting current to the battery; controlling the charger to operate at maximum power.
In an optional manner, the step of controlling the charger to stop inputting the current to the battery further includes: performing closed-loop regulation of the battery current, wherein the feedback quantity is the battery current, the target is zero current, and outputting a first value; performing closed-loop regulation on the power grid current, wherein the feedback quantity is the power grid current, the target is zero current, and outputting a second value; judging whether the first value is larger than the second value; if so, controlling the output of the inverter to be the first value; and if not, controlling the output of the inverter to be the second value.
In an optional manner, the method further comprises: if the charge parameter of the battery is smaller than the preset maximum charge parameter, performing closed-loop regulation on the power grid current, wherein the feedback quantity is the power grid current, the target is zero current, and outputting a second value; controlling the first value to be zero; controlling the output of the inverter to the second value.
In an alternative, the charge parameter of the battery is a state of charge of the battery.
According to an aspect of the embodiment of the invention, the control device of the energy storage product comprises a judging module, a judging module and a control module, wherein the judging module is used for judging whether a charge parameter of the battery is larger than a preset maximum charge parameter or not; the first control module is used for controlling the charger to stop inputting current to the battery if the charge parameter of the battery is larger than a preset maximum charge parameter; and the second control module is used for controlling the charger to operate at the maximum power.
In an alternative form, the first control module includes: a first output unit for performing closed-loop regulation of a battery current, the feedback quantity being the battery current, the target being a zero current, and outputting a first value; the second output unit is used for executing closed-loop regulation of the power grid current, the feedback quantity is the power grid current, the target is zero current, and a second value is output; a judging unit configured to judge whether the first value is greater than the second value; a first control unit for controlling an output of the inverter to the first value; and the second control unit is used for controlling the output of the inverter to be the second value.
In an optional manner, the apparatus further comprises: the output module is used for executing the power grid current closed-loop regulation if the charge parameter of the battery is smaller than a preset maximum charge parameter, wherein the feedback quantity is the power grid current, the target is zero current, and a second value is output; the third control module is used for controlling the first value to be zero; and the fourth control module is used for controlling the output of the inverter to be the second value.
According to an aspect of an embodiment of the present invention, there is provided an electronic apparatus including: at least one processor, and a memory communicatively coupled to the at least one processor, the memory storing instructions executable by the at least one processor to enable the at least one processor to perform a method as described above.
According to an aspect of embodiments of the present invention, there is provided a non-transitory computer-readable storage medium storing computer-executable instructions that, when executed by an electronic device, cause the electronic device to perform the method as described above.
The embodiment of the invention has the beneficial effects that: different from the existing control method of the energy storage product, the embodiment judges whether the charge parameter of the battery is greater than the preset maximum charge parameter; if so, controlling the charger to stop inputting current to the battery; the method for controlling the charger to operate at the maximum power can stop inputting current to the battery in time when the battery is fully charged, thereby realizing the control of the charger to operate at the maximum power and further creating benefits for users.
Drawings
One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the figures in which like reference numerals refer to similar elements and which are not to scale unless otherwise specified.
Fig. 1 is a topology structure diagram of an energy storage product according to an embodiment of the present invention;
fig. 2 is a schematic flow chart of a method for controlling an energy storage product according to an embodiment of the present invention;
fig. 3 is a schematic flowchart of a method for controlling the charger to stop inputting current to the battery according to an embodiment of the present invention;
FIG. 4 is a schematic flow chart illustrating another method for controlling an energy storage product according to an embodiment of the present invention;
fig. 5 is a schematic diagram of a control device for an energy storage product according to an embodiment of the present invention;
fig. 6 is a schematic diagram of a hardware structure of an electronic device that executes a method for controlling an energy storage product according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1, fig. 1 is a topology structure diagram of an energy storage product according to an embodiment of the present invention, where the energy storage product includes: charger 10, inverter 20, battery 30, load 40, and grid 50. The charger 10 is connected to the battery 30 and the inverter 20, and the inverter 20 is connected to the battery 30, the load 40, and the grid 50.
With the charger 10 described above, the charger 10 preferentially supplies power to the load 40 and then charges the battery 30, with the load 40 and the battery 10 feeding the grid 50 with electrical energy that is not completely consumed. In some embodiments, the charger 10 is a photovoltaic charger for receiving and converting solar energy into electrical energy,
as for the above battery 30, the battery 30 is used to store electric energy and can supply electric energy to a load. In some embodiments, the battery 30 may be one of the types of lithium batteries, gel batteries, lead acid batteries, and the like. Further, a battery closed-loop regulation feedback circuit (not shown) is disposed at the battery 30 end for feeding back a first value, in some embodiments, the first value is power.
For the power grid 50, an electricity meter (not shown) and a power grid closed loop regulation feedback circuit are arranged at the end of the power grid 50. The feedback circuit is configured to feed back a second value at the meter end, which in some embodiments is a power measured by the meter.
Further, the energy storage product further includes a monitoring display device (not shown), and the monitoring display device is connected to the inverter 20. A maximum charge parameter of the battery may be set at the monitoring display device.
For the inverter 20, the inverter 20 may implement DC/AC and AC/DC conversion. Wherein dc (direct current) represents direct current, and ac (alternating current) represents alternating current. In some embodiments, when the charger 10 supplies power to the load 40 or the grid 50, the inverter 20 performs DC/AC conversion; when the battery 30 supplies power to the outside, the inverter 20 performs DC/AC conversion; when the grid 50 charges the battery 30, the inverter 20 performs AC/DC conversion.
It should be noted that the number of inverters 20 in the energy storage product may be one or more, and the number of inverters 20 is not limited in the embodiment of the present invention.
Further, a controller (not shown) is integrated in the inverter 20. In some embodiments, the controller is a stand-alone device. The controller is configured to obtain a battery voltage of the battery 30 from the battery 30, and data such as the first value fed back by a battery closed-loop regulation feedback circuit at the battery 30 end, the maximum charge parameter preset at the monitoring display device, and the second value fed back by the power grid closed-loop regulation feedback circuit.
In the embodiment of the present invention, the controller in the inverter 20 determines whether the charge parameter of the battery 30 is greater than a preset maximum charge parameter, and if so, the charger 10 is controlled to stop inputting current to the battery 30 and the charger 10 is controlled to operate at the maximum power, so that the electric energy generated by the charger 10 can be utilized as much as possible on the basis of protecting the battery 30, thereby creating benefits for users.
Example one
Referring to fig. 2, fig. 2 is a schematic flow chart of a method for controlling an energy storage product according to an embodiment of the present invention, where the method includes the following steps:
step S101, determining whether the charge parameter of the battery is greater than a preset maximum charge parameter, if so, performing step S102, otherwise, performing step S104.
Whether the battery is fully charged can be judged by judging whether the charge parameter of the battery is larger than a preset maximum charge parameter.
In some embodiments, the charge parameter is the state of charge of the battery. And the state of charge is obtained by acquiring the current of the battery end in real time through the inverter and integrating the current with time. The controller in the inverter monitors whether the charge parameter of the battery is larger than the preset maximum charge parameter of the battery in real time, and once the charge parameter is larger than the preset maximum charge parameter, the power supply to the battery can be stopped.
And step S102, controlling the charger to stop inputting current to the battery.
When the charge parameter of the battery is greater than the preset maximum charge parameter, the battery is fully charged, and at this time, if the battery is still charged, if the current input to the battery is stopped in time, the battery is overcharged, or the charger stops working or the charger cannot operate at the maximum power, which may damage the benefit of the user. If the input of current to the battery is stopped, the charger can be operated at the maximum power, thereby creating benefits to the user.
In an embodiment of the present invention, a battery closed-loop adjustment feedback circuit is disposed at the battery end, and when it is determined that a charge parameter of the battery is greater than a preset maximum charge parameter, the battery closed-loop adjustment feedback circuit may stop inputting a current to the battery, specifically, referring to fig. 3, step S102 includes:
step S1021, executing closed-loop regulation of the battery current, wherein the feedback quantity is the battery current and the target is zero current, and outputting a first value.
When the charge parameter of the battery is larger than the preset maximum charge parameter, the battery is fully charged, and at the moment, closed-loop regulation of the current of the battery is executed, so that the power output by the charger is completely supplied to the load and the power grid.
And step S1022, performing power grid current closed-loop regulation, wherein the feedback quantity is the power grid current, the target is zero current, and outputting a second value.
In order to further maintain the benefit of users, a power grid closed loop regulation feedback circuit is arranged at the power grid end, so that the users can be prevented from buying power from the power grid as much as possible.
Step S1023, determine whether the first value is greater than the second value, if yes, execute step S1024, otherwise execute step S1025.
Step S1024, controlling the output of the inverter to be the first value.
When the battery is fully charged, if the first value is larger than the second value, the charger inputs current to the battery end, and the current of the battery end is adjusted to be zero through a battery closed loop regulation feedback circuit of the battery end, so that all the output of the charger is transmitted to the load and the power grid through the inverter, namely the output of the inverter is controlled to be the first value.
And step S1025, controlling the output of the inverter to be the second value.
When the battery is fully charged, if the second value is larger than the first value, if the charger is in a working state, the situation that the battery is sold to the power grid is indicated, and the battery is maintained at the point. If the charger does not work, the power grid provides electric energy for the load at the moment, the current of the power grid end is regulated and the battery is controlled to supply power to the load through a power grid closed loop regulation feedback circuit of the power grid, the output of the battery is equal to the second value, and namely the output of the inverter is controlled to be the second value.
And step S103, controlling the charger to operate at the maximum power.
When the charge parameter of the battery is larger than the preset maximum charge parameter, the battery closed-loop regulation feedback circuit stops inputting current to the battery, and at the moment, the charger can be controlled to operate at the maximum power. At the moment, the electric energy output by the charger is preferentially supplied to the load, and the rest of the electric energy can be fed into the power grid, so that the electric energy is not wasted, and benefits can be created for users.
And step S104, executing the power grid current closed-loop regulation, wherein the feedback quantity is the power grid current, the target is zero current, and outputting a second value.
And when the charge parameter of the battery is smaller than the preset maximum charge parameter, namely the battery is not fully charged, performing closed-loop regulation on the current of the power grid, so as to prevent the power grid from supplying power to the load.
Step S105, controlling the first value to be zero.
By controlling the first value output by the battery end to be zero, when the power grid provides electric energy for the load, the second value output by the power grid end is larger than zero.
And step S106, controlling the output of the inverter to be the second value.
When the battery is not fully charged, because the first value is zero, at the moment, the second value is larger than the first value, the output of the inverter is controlled to be the second value, namely, the power is not bought to the power grid.
In the embodiment of the invention, whether the charge parameter of the battery is larger than a preset maximum charge parameter is judged; if so, controlling the charger to stop inputting the current to the battery and controlling the charger to operate at the maximum power, and stopping inputting the current to the battery in time when the battery is fully charged, so that the charger can be controlled to operate at the maximum power, and further benefits are created for users.
Example two
Referring to fig. 5, fig. 5 is a schematic diagram of a control device for an energy storage product according to an embodiment of the present invention, where the device 400 includes: a determination module 401, a first control module 402, and a second control module 403. The judging module 401 is configured to judge whether a charge parameter of the battery is greater than a preset maximum charge parameter; a first control module 402, configured to control the charger to stop inputting current to the battery if the charge parameter of the battery is greater than a preset maximum charge parameter; a second control module 403 for controlling the charger to operate at maximum power.
In some embodiments, the first control module 402 includes: a first output unit 4021, a second output unit 4022, a determination unit 4023, a first control unit 4024, and a second control unit 4025. The first output unit 4021 is configured to perform closed-loop adjustment of the battery current, where the feedback amount is the battery current, the target is zero current, and a first value is output; the second output unit 4022 is configured to perform closed-loop regulation of the power grid current, where the feedback amount is the power grid current, the target is zero current, and a second value is output; a determining unit 4023, configured to determine whether the first value is greater than the second value; a first control unit 4024 for controlling the output of the inverter to the first value; a second control unit 4025, configured to control the output of the inverter to be the second value.
In some embodiments, the apparatus 400 further includes an output module 404, a third control module 405, and a fourth control module 406. The output module 404 is configured to execute the power grid current closed-loop adjustment if the charge parameter of the battery is smaller than a preset maximum charge parameter, where the feedback amount is a power grid current, the target is a zero current, and a second value is output; a third control module 405 for controlling the first value to be zero; a fourth control module 406, configured to control the output of the inverter to be the second value.
In the embodiment of the invention, whether the charge parameter of the battery is larger than a preset maximum charge parameter is judged by a judging module; if so, the first control module controls the charger to stop inputting current to the battery and the second control module controls the charger to operate at the maximum power, so that the charger can be controlled to operate at the maximum power when the battery is fully charged.
EXAMPLE III
Referring to fig. 6, fig. 6 is a schematic diagram of a hardware structure of an electronic device for executing a method for controlling an energy storage product according to an embodiment of the present invention. As shown in fig. 6, the electronic apparatus 50 includes: one or more processors 51 and a memory 52, one for example in fig. 6.
The processor 51 and the memory 52 may be connected by a bus or other means, such as the bus connection in fig. 6.
The memory 52 is a non-volatile computer-readable storage medium and can be used for storing non-volatile software programs, non-volatile computer-executable programs, and modules, such as program instructions/modules (for example, the modules shown in fig. 5) corresponding to the control method of the energy storage product in the embodiment of the present invention. The processor 51 executes various functional applications and data processing of the control device of the energy storage product by running the nonvolatile software program, instructions and modules stored in the memory 52, that is, the control method of the energy storage product, which implements the above-described method embodiments.
The memory 52 may include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store data created according to use of a control device of the energy storage product, and the like. Further, the memory 52 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device. In some embodiments, the memory 52 optionally comprises a memory remotely located from the processor 51, and these remote memories may be connected to the control of the energy storage product via a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
The one or more modules are stored in the memory 52 and, when executed by the one or more processors 51, perform the method of controlling the energy storage product of any of the method embodiments described above.
The product can execute the method provided by the embodiment of the invention, and has corresponding functional modules and beneficial effects of the execution method. For technical details that are not described in detail in this embodiment, reference may be made to the method provided by the embodiment of the present invention.
It is worth mentioning that the electronic device 50 may be understood as the controller.
Embodiments of the present invention provide a non-volatile computer-readable storage medium, where computer-executable instructions are stored in the non-volatile computer-readable storage medium, and the computer-executable instructions are executed by an electronic device to perform a method for controlling an energy storage product in any method embodiment described above.
Embodiments of the present invention provide a computer program product comprising a computer program stored on a non-transitory computer-readable storage medium, the computer program comprising program instructions that, when executed by a computer, cause the computer to perform the method of controlling an energy storage product of any of the above-described method embodiments.
The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment.
Through the above description of the embodiments, those skilled in the art will clearly understand that each embodiment can be implemented by software plus a general hardware platform, and certainly can also be implemented by hardware. It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by hardware related to instructions of a computer program, which can be stored in a computer readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. The storage medium may be a magnetic disk, an optical disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), or the like.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; within the idea of the invention, also technical features in the above embodiments or in different embodiments may be combined, steps may be implemented in any order, and there are many other variations of the different aspects of the invention as described above, which are not provided in detail for the sake of brevity; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (5)
1. A method of controlling an energy storage product, the energy storage product including a charger, a battery, an inverter, a load, and a grid, the charger being connected to the battery and the inverter, the inverter being connected to the battery, the load, and the grid, the method comprising:
judging whether the charge parameter of the battery is larger than a preset maximum charge parameter or not;
if so, controlling the charger to stop inputting the current to the battery, wherein the controlling the charger to stop inputting the current to the battery comprises:
performing closed-loop regulation of the battery current, the feedback quantity being the battery current, the target being zero current, outputting a first value,
performing closed-loop regulation of the power grid current, wherein the feedback quantity is the power grid current, the target is zero current, outputting a second value,
determining whether the first value is greater than the second value,
if so, controlling the output of the inverter to be the first value,
if not, controlling the output of the inverter to be the second value;
controlling the charger to operate at maximum power;
if the charge parameter of the battery is smaller than the preset maximum charge parameter, performing closed-loop regulation on the power grid current, wherein the feedback quantity is the power grid current, the target is zero current, and outputting a second value;
controlling the first value to be zero;
controlling the output of the inverter to the second value.
2. The method of claim 1, wherein the charge parameter of the battery is a state of charge of the battery.
3. A control device for an energy storage product, comprising:
the judging module is used for judging whether the charge parameter of the battery is larger than a preset maximum charge parameter or not;
the first control module is used for controlling the charger to stop inputting current to the battery if the charge parameter of the battery is larger than a preset maximum charge parameter;
the second control module is used for controlling the charger to operate at the maximum power; wherein the content of the first and second substances,
the first control module includes:
a first output unit for performing closed-loop regulation of the battery current, the feedback quantity being the battery current, the target being zero current, outputting a first value,
a second output unit for performing a closed loop regulation of the grid current, the feedback quantity being the grid current, the target being zero current, outputting a second value,
a judging unit for judging whether the first value is larger than the second value,
a first control unit for controlling an output of the inverter to the first value,
a second control unit for controlling the output of the inverter to the second value;
the output module is used for executing the power grid current closed-loop regulation if the charge parameter of the battery is smaller than a preset maximum charge parameter, wherein the feedback quantity is the power grid current, the target is zero current, and a second value is output;
the third control module is used for controlling the first value to be zero;
and the fourth control module is used for controlling the output of the inverter to be the second value.
4. An electronic device, comprising:
at least one processor; and
a memory communicatively coupled to the at least one processor, the memory storing instructions executable by the at least one processor to enable the at least one processor to perform the method of any of claims 1-2.
5. A non-transitory computer-readable storage medium having stored thereon computer-executable instructions that, when executed by an electronic device, cause the electronic device to perform the method of any of claims 1-2.
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| CN113381472B (en) * | 2021-05-26 | 2022-03-11 | 深圳市德兰明海科技有限公司 | Charge-discharge control method and device and two-phase energy storage system |
| CN113746168A (en) * | 2021-08-27 | 2021-12-03 | 江苏科曜能源科技有限公司 | Charging and discharging method, device, equipment and storage medium of lead-acid battery |
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| US6914418B2 (en) * | 2003-04-21 | 2005-07-05 | Phoenixtec Power Co., Ltd. | Multi-mode renewable power converter system |
| CN202511178U (en) * | 2012-04-01 | 2012-10-31 | 杭州浙大桑尼能源科技有限公司 | Solar grid-connected street lamp |
| CN203068894U (en) * | 2012-12-05 | 2013-07-17 | 云南师范大学 | Photovoltaic refrigerator with maximum power point tracing |
| CN106230009B (en) * | 2016-08-30 | 2018-09-14 | 深圳耐斯特思新能源科技有限公司 | A kind of Energy Management System and method of family energy storaging product |
| CN106505551A (en) * | 2016-11-04 | 2017-03-15 | 国网江苏省电力公司扬州供电公司 | A kind of light storage DC power-supply system based on cooperative control device |
| CN110112783B (en) * | 2019-05-23 | 2021-01-19 | 深圳市建筑科学研究院股份有限公司 | Photovoltaic storage battery microgrid dispatching control method |
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