CN214798999U - Energy storage based charging and battery replacing system and charging and battery replacing cabinet - Google Patents
Energy storage based charging and battery replacing system and charging and battery replacing cabinet Download PDFInfo
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- CN214798999U CN214798999U CN202121226022.1U CN202121226022U CN214798999U CN 214798999 U CN214798999 U CN 214798999U CN 202121226022 U CN202121226022 U CN 202121226022U CN 214798999 U CN214798999 U CN 214798999U
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Abstract
The utility model discloses a fill and trade electric system and fill and trade electric cabinet based on energy storage, include: the energy storage unit is externally connected with a power grid and internally provided with an energy storage battery pack; the charging and battery replacing unit is connected with the power grid and the energy storage unit and is internally provided with a power battery pack; the energy management unit is connected with the energy storage unit and the battery charging and replacing unit; the energy management unit is further connected with the remote control unit to receive a remote control instruction and perform energy management, so that the energy storage unit can charge the energy storage battery pack after acquiring electric energy from the power grid in a power consumption valley period, and/or can output the electric energy in the energy storage battery pack to the power grid or the power battery pack in a power consumption peak period. The electric energy storage when realizing resident's community power consumption millet realizes the effect of falling the peak and filling the millet when resident's power consumption peak, improves resident's community power consumption situation, has balanced the power consumption demand of power consumption peak and power consumption millet.
Description
Technical Field
The utility model relates to a battery technology field especially relates to the cabinet that trades that charges based on energy storage fills and trades electric system and use thereof.
Background
In recent years, the electric moped charging and replacing cabinet is rapidly developed, the charging and replacing facility provides convenient charging and electricity utilization modes for common residents using the electric moped, and the potential safety hazard of battery charging when the residents charge indoors is solved.
After the charging and replacing facility is used, the resident is charged no longer at night and needs to be charged for use in the daytime as before, but is changed into being taken and used at any time without being limited by time. Therefore, the peak time of power utilization is shifted to the daytime from night, and the daytime is just the peak of power grid load and the peak of power utilization of the power charging and replacing facility, so that the capacity is limited to the power grid to cause impact of different degrees, the power supply of the power grid is unstable, and even a power failure accident can be caused. Meanwhile, the load of the power grid is insufficient at night, electric power is wasted in vain, the electricity price is the cheapest at night when the electricity is used at peak valley, and a part of economic benefits are lost in vain.
SUMMERY OF THE UTILITY MODEL
In view of the above-mentioned defects in the prior art, the technical problem to be solved in the present invention is how to balance the power demand of the power peak and the power valley.
In order to achieve the above object, the utility model provides a fill and trade electric system based on energy storage, include: the energy storage unit is externally connected with a power grid and internally provided with an energy storage battery pack; the charging and battery replacing unit is connected with the power grid and the energy storage unit and is internally provided with a power battery pack; the energy management unit is connected with the energy storage unit and the battery charging and replacing unit; the energy management unit is further connected with the remote control unit to receive a remote control instruction and perform energy management, so that the energy storage unit can charge the energy storage battery pack after acquiring electric energy from the power grid in a power consumption valley period, and/or can output the electric energy in the energy storage battery pack to the power grid or the power battery pack in a power consumption peak period.
In a preferred embodiment of the present invention, the battery charging and replacing system further includes a photovoltaic power generation unit; the photovoltaic power generation unit is connected with the energy storage unit and the power grid, and the energy storage unit is used for charging the energy storage battery pack after acquiring electric energy from the photovoltaic power generation unit.
In another preferred embodiment of the present invention, the energy storage unit includes: the bidirectional converter is connected with the power grid, the energy storage battery pack and the energy management unit and is used for rectifying alternating current of the power grid to direct current and then charging the energy storage battery pack; the battery slave control modules are connected with the battery cores in the energy storage battery pack one by one and used for acquiring the battery core parameters of the battery cores; and the battery master control module is connected with the bidirectional converter, the energy management unit and each battery slave control module.
In another preferred embodiment of the present invention, the battery main control module is further connected to any one or more of the following detection devices: the current detection device is used for detecting the current of the energy storage battery pack; the voltage detection device is used for detecting the voltage of the energy storage battery pack; insulation resistance detection equipment for detecting the insulation resistance of the energy storage battery pack; and the leakage current detection equipment is used for detecting the leakage current of the energy storage battery pack.
In another preferred embodiment of the present invention, the battery charging and replacing unit includes: the battery charging module is connected with the power grid and the power battery pack and used for rectifying alternating current of the power grid into direct current adapted to the power battery pack; the battery data acquisition module is connected with the power battery pack and used for acquiring battery data; the battery compartment door control module is used for driving the opening or closing of the battery compartment door; and the battery charging and replacing management module is connected with the battery data acquisition module, the battery charging module and the battery compartment door control module and is used for receiving the battery data and controlling the battery charging module to charge the power battery pack and control the battery compartment door control module to open or close the battery compartment door.
In another preferred embodiment of the present invention, the battery charging module includes: the AC/DC conversion circuit is connected with the power grid and is used for rectifying alternating current of the power grid into direct current; the DC/DC conversion circuit is connected with the AC/DC conversion circuit and is used for converting the direct current obtained by rectification into a voltage grade required by the power battery pack; and the communication interface is connected with the battery charging and replacing management module.
In another preferred embodiment of the present invention, the data collected by the battery data collecting module at least includes any one or more of charging voltage data, charging current data, temperature data and state of charge data.
In another preferred embodiment of the present invention, the photovoltaic power generation unit includes a photovoltaic cell array and a photovoltaic inverter; the photovoltaic inverter is connected with the power grid and the photovoltaic cell array and used for converting light energy into electric energy and then charging the photovoltaic cell array.
In another preferred embodiment of the present invention, the energy management unit is further connected to any one or more of the following modules: the power monitoring module is connected to the power grid and used for monitoring power grid parameters in real time; the temperature control module is used for controlling the temperature of the energy storage battery assembly in the energy storage unit according to a preset temperature condition;
the fire fighting module is used for detecting a fire signal, sending out a fire alarm and executing automatic fire extinguishing; the security module is used for storing the monitoring image and sending out security alarm; and the grounding module is used for grounding all the equipment in the battery charging and replacing system through a grounding cable and detecting the grounding condition in real time.
In order to achieve the above object, the utility model provides a charging and power-changing cabinet, include based on the electric system is traded in the charging of energy storage.
The utility model provides a fill and trade electric system and what use fills and trade electric cabinet based on energy storage has following technological effect:
1. the electric energy storage when realizing the power consumption millet of resident community realizes the effect of falling the peak and filling the millet when the resident power consumption peak, improves the power consumption situation of resident community.
2. The light energy storage is used for supplementing the power supply of the community, and particularly, the power distribution capacity is not enough, but the power storage capacity is large in old residential areas.
3. The service mode of replacing and charging the batteries of the resident electric bicycles is provided, unsafe charging behaviors of the resident electric bicycles are effectively reduced, and safe, reliable and convenient electric bicycle electricity utilization service is provided for the residential community.
4. Through using the utility model discloses a system can gather residential community's power load data, supplies according to residential community's power load data, optimizes residential community's energy storage strategy of being incorporated into the power networks, alleviates distribution network pressure.
5. Through using the utility model discloses a system establishes the user and trades the electricity but the service mode that charges to and based on the charging mode who trades the electric energy, can optimize the user and use electric bicycle's use custom, improve the life of electric bicycle battery, electric bicycle communication intelligence based on temperature control system down simultaneously charges, effectively reduces the risk of electric bicycle battery use, promotes electric bicycle battery recovery and echelon utilization value after the retirement, thereby also can reduce the consumption to natural resources.
The conception, the specific structure and the technical effects of the present invention will be further described with reference to the accompanying drawings, so as to fully understand the objects, the features and the effects of the present invention.
Drawings
Fig. 1A is a schematic structural diagram of an energy storage based charging and replacing system according to an embodiment of the present invention.
Fig. 1B is a schematic structural diagram of a charging and battery replacing system based on energy storage according to another embodiment of the present invention.
Fig. 2 is an electrical schematic diagram of a charging and battery replacing system based on energy storage according to an embodiment of the present invention.
Fig. 3 is an electrical schematic diagram of an energy storage unit according to an embodiment of the present invention.
Fig. 4 is an electrical schematic diagram of a charging and replacing unit according to an embodiment of the present invention.
Fig. 5 is an electrical schematic diagram of an energy management unit according to an embodiment of the present invention.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein. The present invention can also be implemented or applied through other different specific embodiments, and various details in the present specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict.
It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention, and the drawings only show the components related to the present invention rather than being drawn according to the number, shape and size of the components in actual implementation, and the form, amount and ratio of the components in actual implementation may be changed arbitrarily, and the layout of the components may be more complicated.
Some exemplary embodiments of the invention have been described for illustrative purposes, and it is to be understood that the invention may be practiced otherwise than as specifically described.
In view of the problem among the above-mentioned background, the utility model provides a fill and trade electric system with energy storage function, this system is according to the peak valley characteristics of electric wire netting power consumption, store the energy storage battery with the electric energy in the power consumption valley period, the electric energy output that will store is for the little electric wire netting of community or is used for filling and trade electric facilities and provide electric power in the power consumption peak period, not only can solve resident's electric bicycle and fill and trade the electric problem, but also can reduce or improve resident community's electric power demand pressure, the difference of the price of electricity that utilizes the different periods of peak valley comes the balanced peak period power consumption expense simultaneously.
Additionally, the utility model discloses a fill and trade electric system and still can add photovoltaic energy storage function, photovoltaic power generation energy storage is laid in the place that can make full use of the outdoor deployment of equipment to occupy, and can be according to the little electric wire netting of resident community's power consumption peak valley characteristics, store the energy storage battery with the electric energy in the power consumption valley period, export the electric energy of storing for the little electric wire netting of community or be used for filling and trade electric facility and provide electric power in the power consumption peak period like this, not only can solve resident's electric bicycle and fill and trade the electric problem, but also can reduce or improve resident community's electric power demand pressure.
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions in the embodiments of the present invention are further described in detail by the following embodiments in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1A, a schematic structural diagram of an energy storage based charging and replacing system according to an embodiment of the present invention is shown. In this embodiment, the energy storage based charging and battery replacing system at least includes an energy storage unit 11, a charging and battery replacing unit 12, and an energy management unit 13.
Wherein, the energy storage unit 11 is externally connected with a power grid and internally provided with an energy storage battery pack; the charging and replacing unit 12 is connected with the power grid and the energy storage unit 11 and is internally provided with a power battery pack; the energy management unit 13 is connected with the energy storage unit 11 and the battery charging and replacing unit 12; the energy management unit 13 is further connected to a remote control unit to receive a remote control instruction and perform energy management, so that the energy storage unit 11 charges the energy storage battery pack after acquiring electric energy from the power grid in a power consumption valley period, and/or outputs the electric energy in the energy storage battery pack to the power grid or a power battery pack in the charging and replacing unit in a power consumption peak period.
Specifically, the energy storage unit 11 may obtain electric energy from a power grid and then charge the energy storage battery pack, may obtain electric energy from the energy storage battery pack and then reversely invert the electric energy to the power grid, or may separately supply power to the charging and replacing unit 12 offline (not grid-connected to the power grid). Generally, the energy storage unit 11 is used for charging an energy storage battery pack after acquiring electric energy from a power grid in a power consumption valley period; and outputting the electric energy in the energy storage battery pack to a power grid or a charging and replacing unit 12 during the peak period of electricity utilization.
The charging and battery-replacing unit 12 can obtain electric energy from the power grid directly, and can also obtain electric energy from the energy storage unit 11. Generally, the charging and replacing unit 12 directly obtains electric energy from the power grid during the electricity consumption valley period and then charges the power battery pack with insufficient or no electric quantity; the power battery pack is charged after electric energy is obtained from the energy storage unit 11 in the peak period of electricity utilization; and under the condition that the electric energy storage of the energy storage unit 11 is insufficient, the charging and replacing unit 12 directly obtains electric energy from the power grid and then charges the power battery pack.
The energy management unit 13 is in communication connection with the energy storage unit 11 and the battery charging and replacing unit 12, and is in communication connection with a remote control unit (not shown), and is configured to receive a remote control instruction and a configuration parameter sent by the remote control unit, and manage electric energy distribution.
As shown in fig. 1B, a schematic structural diagram of a charging and battery replacing system based on energy storage according to another embodiment of the present invention is shown. In this embodiment, the energy storage based battery charging and replacing system at least includes an energy storage unit 11, a battery charging and replacing unit 12, an energy management unit 13, and a photovoltaic power generation unit 14. The photovoltaic power generation unit 14 is connected with the energy storage unit 11 and the power grid, and utilizes the photovoltaic effect of a semiconductor interface to directly convert light energy into electric energy, and mainly comprises a solar cell module, a controller and an inverter. Therefore, the energy storage unit 11 may obtain electric energy from the power grid or from the photovoltaic power generation unit 14 and then charge the energy storage battery pack, may also obtain electric energy from the energy storage battery pack continuously and then reversely invert the electric energy to the power grid, and may also separately supply power to the charging and replacing unit 12 offline (not grid-connected to the power grid). Generally speaking, the energy storage battery pack in the energy storage unit 11 can be charged through the photovoltaic charging unit 14 in the sunshine period (such as sunny day), and the energy storage battery pack is charged after electric energy is obtained from the power grid in the no-sunshine and low-ebb period; and outputting the electric energy in the energy storage battery pack to a power grid or a charging and replacing unit 12 during the peak period of electricity utilization.
As shown in fig. 2, an electrical structure diagram of an energy storage based charging and replacing system in an embodiment is shown, and includes an energy storage unit 21, a charging and replacing unit 22, a photovoltaic power generation unit 23, and an energy management unit 24. The energy storage unit 21, the battery charging and replacing unit 22 and the photovoltaic power generation unit 23 are all connected with an energy management unit 24, and the energy management unit 24 is in communication connection with a remote control unit 25 through a mobile network. In addition, the remote control unit 25 is a remote server and a management system connected via a mobile internet or a limited network.
For convenience of understanding, each unit in the energy storage based charging and replacing system includes an energy storage unit 21, a charging and replacing unit 22, a photovoltaic power generation unit 23 and an energy management unit 24, and the electrical structures of these units are described in detail below.
The electrical structure of the photovoltaic power generation unit is shown in the attached figure 2 and comprises a photovoltaic cell array and a photovoltaic inverter; the photovoltaic inverter is connected with a power grid through an AC switch; the photovoltaic inverter is connected with the photovoltaic cell array through a DC bus, and a DC circuit breaker is arranged between the photovoltaic inverter and the photovoltaic cell array; the photovoltaic inverter is connected to the energy management unit through a communication interface (such as a CAN communication interface or an RS485 interface). It is understood that the photovoltaic inverter (PV inverter or solar inverter) is an inverter that converts the variable dc voltage generated by the photovoltaic solar panels into AC at the mains frequency, for inverting the photovoltaic energy into AC voltage and frequency that the grid and bi-directional converter can receive. The photovoltaic cell array is used for converting light energy into electric energy, and the area of the photovoltaic cell array can be reduced and expanded according to needs and fields on the premise of meeting the requirement of energy storage.
As shown in fig. 3, an electrical schematic diagram of the energy storage unit is shown. The energy storage unit comprises an energy storage battery pack, a battery master control module, a plurality of battery slave control modules, a bidirectional converter (PCS), related protective electric appliances and a switch. The energy storage battery pack is connected with a bidirectional converter (PCS) through a direct current bus (DC bus), and a DC switch is arranged between the energy storage battery pack and the PCS; the bidirectional converter (PCS) is connected with a power grid through an AC switch; the battery slave control modules are connected with all the battery cells in the energy storage battery pack one by one; the battery master control module is connected with the bidirectional converter (PCS) and each battery slave module. The specific description of each module is as follows:
the energy storage battery pack is generally composed of n battery units connected in series and parallel, and can be configured according to actual voltage and capacity requirements, such as being configured to be different from 50KWh, 100KWh and 200 KWh.
The battery slave control module is an electronic device with a battery management system, the battery management system is used for monitoring and managing the storage battery, namely, the charging and discharging process of the current is controlled by acquiring and calculating parameters such as voltage, current, temperature and SOC, so that the protection of the battery is realized, and the comprehensive performance management system of the battery is improved. In this embodiment, each battery unit is connected to a battery slave control module for acquiring parameters such as voltage, current, temperature, SOC, and the like of a single battery cell.
The battery master control module is in communication connection with each battery slave control module through a communication bus (such as RS485 or CAN). The battery main control module can be a single chip microcomputer, such as an 8051 single chip microcomputer, an AVR single chip microcomputer, a PIC single chip microcomputer, an STM8 single chip microcomputer, an ARM single chip microcomputer and the like.
The bidirectional converter (Power Conversion System, PCS) is connected to the energy management unit through the communication interface to manage charging and discharging of the energy storage battery pack, has the characteristics of wide voltage input range, quick grid connection switching and the like, and meets grid connection requirements. The bidirectional converter is applied to AC coupling energy storage systems such as grid-connected energy storage, microgrid energy storage and the like, is connected between a storage battery and a power grid (or load), is a device for realizing bidirectional conversion of electric energy, can invert direct current of the storage battery into alternating current and transmits the alternating current to the power grid or an alternating current load for use; the alternating current of the power grid can be rectified into direct current to charge the storage battery; the bidirectional converter is used as a controllable energy storage power supply in the microgrid, the contradiction between a large power grid and a distributed power supply is solved, the microgrid can be connected with the large power grid for operation, and can also be disconnected from a main grid for independent operation when the power grid fails or is required, and the safety, stability and economy of a power system are improved.
The battery main control module is also connected with various detection devices for detecting the performance of the battery, including but not limited to a current sensor, a voltage sensor, an insulation impedance detector, a leakage current tester and the like, and is respectively used for collecting current data, voltage data, insulation impedance data, leakage current data and the like of the energy storage battery pack. After collecting various battery performance data, the battery main control module can make the following judgment by combining with some existing software or programs: comparing each battery performance data with a corresponding preset threshold, determining whether the energy storage battery pack is abnormal according to the comparison result, and reporting the abnormal condition to the energy management unit immediately once the abnormal condition is detected, such as the conditions of higher or lower battery voltage, higher or lower battery current, abnormal impedance, electric leakage and the like. In addition, in order to effectively prevent safety accidents, the battery main control module can determine whether to directly cut off the battery loop according to the level degree of the abnormity.
As shown in fig. 4, an electrical structure diagram of the charging and replacing unit is shown. The battery charging and replacing unit comprises a battery charging module, a battery charging and replacing management module, a battery data acquisition module and a battery bin gate control module. The battery charging module is connected with a power grid and a power battery pack and is connected with a charging and replacing management module; the battery charging and replacing management module is also connected with the battery data acquisition module, the battery bin gate control module and the energy management unit.
Specifically, the battery charging module includes an AC/DC conversion circuit, a DC/DC conversion circuit, and a communication interface for communicating with the charging and replacing management module. The AC/DC conversion circuit is connected with a power grid and is used for rectifying alternating current of the power grid into direct current; the DC/DC conversion circuit is connected with the AC/DC conversion circuit and is used for converting the direct current into the voltage level required by the power battery; the communication interface includes but is not limited to a CAN communication interface or an RS485 interface.
The battery data acquisition module acquires battery data of the power battery, including but not limited to charging voltage data, charging current data, temperature data, SOC data and the like, and transmits the acquired data to the charging and battery-replacing management module. It should be understood that SOC is an abbreviation of State of charge for reflecting the remaining capacity of the battery, which is numerically defined as the ratio of the remaining capacity to the battery capacity, and is usually expressed in percentage, for example, indicating that the battery is fully discharged when SOC is 0, and indicating that the battery is fully charged when SOC is 1.
The battery charging and replacing management module is connected with the battery data acquisition module, the battery charging module and the battery compartment door control module and used for receiving the battery data and controlling the battery charging module to charge the power battery pack and control the battery compartment door control module to open or close the battery compartment door. Specifically, the charging and replacing management module and the battery data acquisition module establish communication connection through a system bus (such as a CAN bus or an RS485 bus) and are used for collecting battery parameters of the power battery, controlling the battery charging module to charge the power battery, managing the operation flow of putting a low/no-electric-quantity battery into a user and/or taking out a full-electric-quantity battery from the user, and performing charge verification and the like according to the charging starting time to the time period when the electric quantity is fully charged. Furthermore, the actual electric energy of the battery can be charged according to the battery replacement of the user, for example, the charge rate charged by the user who puts in the battery without electric quantity and takes out the battery with full electric quantity is higher than the charge rate charged by the user who puts in the battery with low electric quantity and takes out the battery with full electric quantity. The battery compartment door control module is connected to the battery charging and replacing management module through a communication interface and is used for controlling automatic opening and state detection of the battery compartment door.
As shown in fig. 5, an electrical schematic diagram of the energy management unit is shown. It should be noted that the energy management unit includes a computer device, and is used to manage the energy storage and charging of the entire microgrid, and establish a communication connection with the remote management unit. It should be noted that the computer device may be a Personal computer such as a desktop computer, a notebook computer, a tablet computer, a smart phone, a smart bracelet, a smart watch, a smart helmet, a smart television, and a Personal Digital Assistant (PDA); or may be servers, which may be arranged on one or more physical servers according to various factors such as functions, loads, etc., or may be formed by a distributed or centralized server cluster.
As described above, the energy management unit is connected to the bidirectional converter and the battery main control module in the energy storage unit, connected to the charging and switching management module in the charging and switching unit, and connected to the photovoltaic inverter in the photovoltaic power generation unit. In addition, the energy management unit is connected with any one or combination of a plurality of electric power monitoring modules, temperature control modules, fire fighting modules, security modules and grounding modules. The description of each module is as follows:
the power monitoring module may adopt a functional power meter, which is connected to the power grid and used for monitoring parameters of the power grid in real time, including but not limited to voltage parameters, current parameters, frequency parameters, power factor parameters, system consumption power parameters, system generation power parameters, and the like.
The temperature control module can adopt a temperature controller, such as a snap-action temperature controller, a hydraulic expansion temperature controller, a pressure temperature controller or an electronic temperature controller, and is used for cooling or heating the energy storage battery pack in the energy storage unit according to a preset temperature condition so as to ensure that the energy storage battery pack works under a proper temperature condition.
The fire-fighting module comprises a fire detector, a fire alarm and an automatic fire extinguisher, the fire detector is used for detecting fire signals, the fire alarm is used for sending out fire alarm signals when the fire signals are detected, and the automatic fire extinguisher is used for automatically extinguishing fire.
The security module comprises a camera, a storage and an alarm, the camera is used for shooting the condition of a charging area, the storage is used for storing camera information, and the alarm is used for timely sending out an alarm signal when a security problem occurs.
The grounding module is a grounding body which takes a carbon material as a main body, consists of nonmetal mineral substances with good conductivity and stability, and is used for grounding all equipment in the system through a grounding cable, detecting the grounding condition in real time and achieving the effects of preventing electric shock and protecting the safety of the equipment.
To sum up, the utility model provides a charging and replacing system based on energy storage, which realizes the electric energy storage when the power consumption of the residential community is in valley, realizes the effect of peak reduction and valley filling when the power consumption of the residential community is in peak, and improves the power consumption condition of the residential community; the method utilizes light energy storage to supplement power supply of communities, particularly old residential areas with insufficient power distribution capacity but large storage capacity; the service mode of replacing and charging the batteries of the resident electric bicycles is provided, the unsafe charging behavior of the resident electric bicycles is effectively reduced, and the safe, reliable and convenient electric bicycle electricity utilization service is provided for the residential community; by using the system of the utility model, the power load data of the residential community can be collected, so that the energy storage grid-connection strategy of the residential community is optimized according to the power load data of the residential community, and the pressure of the power distribution network is reduced; through using the utility model discloses a system establishes the user and trades the electricity but the service mode that charges to and based on the charging mode who trades the electric energy, can optimize the user and use electric bicycle's use custom, improve the life of electric bicycle battery, electric bicycle communication intelligence based on temperature control system down simultaneously charges, effectively reduces the risk of electric bicycle battery use, promotes electric bicycle battery recovery and echelon utilization value after the retirement, thereby also can reduce the consumption to natural resources.
The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (10)
1. A battery charging and replacing system based on energy storage is characterized by comprising:
the energy storage unit is externally connected with a power grid and internally provided with an energy storage battery pack;
the charging and battery replacing unit is connected with the power grid and the energy storage unit and is internally provided with a power battery pack;
the energy management unit is connected with the energy storage unit and the battery charging and replacing unit; the energy management unit is further connected with the remote control unit to receive a remote control instruction and perform energy management, so that the energy storage unit can charge the energy storage battery pack after acquiring electric energy from the power grid in a power consumption valley period, and/or can output the electric energy in the energy storage battery pack to the power grid or the power battery pack in a power consumption peak period.
2. The energy-storage-based battery charging and replacing system as claimed in claim 1, further comprising a photovoltaic power generation unit; the photovoltaic power generation unit is connected with the energy storage unit and the power grid, and the energy storage unit is used for charging the energy storage battery pack after acquiring electric energy from the photovoltaic power generation unit.
3. The energy storage based charging and replacing system as claimed in claim 1 or 2, wherein the energy storage unit comprises:
the bidirectional converter is connected with the power grid, the energy storage battery pack and the energy management unit and is used for rectifying alternating current of the power grid to direct current and then charging the energy storage battery pack;
the battery slave control modules are connected with the battery cores in the energy storage battery pack one by one and used for acquiring the battery core parameters of the battery cores;
and the battery master control module is connected with the bidirectional converter, the energy management unit and each battery slave control module.
4. The energy-storage-based battery charging and replacing system as claimed in claim 3, wherein the battery main control module is further connected with any one or more of the following detection devices:
the current detection device is used for detecting the current of the energy storage battery pack;
the voltage detection device is used for detecting the voltage of the energy storage battery pack;
insulation resistance detection equipment for detecting the insulation resistance of the energy storage battery pack;
and the leakage current detection equipment is used for detecting the leakage current of the energy storage battery pack.
5. The energy storage based battery charging and swapping system of claim 1 or 2, wherein the battery charging and swapping unit comprises:
the battery charging module is connected with the power grid and the power battery pack and used for rectifying alternating current of the power grid into direct current adapted to the power battery pack;
the battery data acquisition module is connected with the power battery pack and used for acquiring battery data;
the battery compartment door control module is used for driving the opening or closing of the battery compartment door;
and the battery charging and replacing management module is connected with the battery data acquisition module, the battery charging module and the battery compartment door control module and used for receiving the battery data and controlling the battery charging module to charge the power battery pack and control the battery compartment door control module to open or close the battery compartment door.
6. The energy-storage-based battery charging and replacing system as claimed in claim 5, wherein the battery charging module comprises:
the AC/DC conversion circuit is connected with the power grid and is used for rectifying alternating current of the power grid into direct current;
the DC/DC conversion circuit is connected with the AC/DC conversion circuit and is used for converting the direct current obtained by rectification into a voltage grade required by the power battery pack;
and the communication interface is connected with the battery charging and replacing management module.
7. The energy-storage-based battery charging and replacing system as claimed in claim 5, wherein the data collected by the battery data collection module comprises at least one or more of charging voltage data, charging current data, temperature data and state of charge data.
8. The energy-storage-based battery charging and replacing system as claimed in claim 2, wherein the photovoltaic power generation unit comprises a photovoltaic cell array and a photovoltaic inverter; the photovoltaic inverter is connected with the power grid and the photovoltaic cell array and used for converting light energy into electric energy and then charging the photovoltaic cell array.
9. The energy-storage-based battery charging and replacing system as claimed in claim 1, wherein the energy management unit is further connected to any one or more of the following modules:
the power monitoring module is connected with the power grid and used for monitoring power grid parameters in real time;
the temperature control module is used for controlling the temperature of the energy storage battery assembly in the energy storage unit according to a preset temperature condition;
the fire fighting module is used for detecting a fire signal, sending out a fire alarm and executing automatic fire extinguishing;
the security module is used for storing the monitoring image and sending out security alarm;
and the grounding module is used for grounding all the equipment in the battery charging and replacing system through a grounding cable and detecting the grounding condition in real time.
10. A charging and replacing cabinet characterized by comprising the energy storage based charging and replacing system according to any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121226022.1U CN214798999U (en) | 2021-06-02 | 2021-06-02 | Energy storage based charging and battery replacing system and charging and battery replacing cabinet |
Applications Claiming Priority (1)
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114268156A (en) * | 2021-12-28 | 2022-04-01 | 苏州祎储能源科技有限公司 | Charging and battery-replacing cabinet |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114268156A (en) * | 2021-12-28 | 2022-04-01 | 苏州祎储能源科技有限公司 | Charging and battery-replacing cabinet |
| CN114268156B (en) * | 2021-12-28 | 2024-04-23 | 苏州祎储能源科技有限公司 | Charging and changing cabinet |
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