CN117559541B - Whole package utilization system of retired power battery package - Google Patents
Whole package utilization system of retired power battery package Download PDFInfo
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- CN117559541B CN117559541B CN202410040156.6A CN202410040156A CN117559541B CN 117559541 B CN117559541 B CN 117559541B CN 202410040156 A CN202410040156 A CN 202410040156A CN 117559541 B CN117559541 B CN 117559541B
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- 238000006243 chemical reaction Methods 0.000 claims abstract description 183
- 238000004146 energy storage Methods 0.000 claims abstract description 123
- 238000012545 processing Methods 0.000 claims abstract description 13
- 238000004891 communication Methods 0.000 claims description 30
- 238000007599 discharging Methods 0.000 claims description 12
- 230000005540 biological transmission Effects 0.000 claims description 8
- 238000001514 detection method Methods 0.000 claims description 6
- 230000010365 information processing Effects 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 5
- 230000036541 health Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 4
- 238000013461 design Methods 0.000 description 7
- 239000002699 waste material Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 239000003086 colorant Substances 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 208000032953 Device battery issue Diseases 0.000 description 1
- 230000010485 coping Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000003306 harvesting Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/4285—Testing apparatus
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/54—Reclaiming serviceable parts of waste accumulators
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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
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00001—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by the display of information or by user interaction, e.g. supervisory control and data acquisition systems [SCADA] or graphical user interfaces [GUI]
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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
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
- H02J13/00022—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using wireless data transmission
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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
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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
- H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
-
- 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
- H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
- H02J7/0048—Detection of remaining charge capacity or state of charge [SOC]
-
- 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
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L12/40006—Architecture of a communication node
- H04L12/40045—Details regarding the feeding of energy to the node from the bus
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/26—Special purpose or proprietary protocols or architectures
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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
- H02J2203/00—Indexing scheme relating to details of circuit arrangements for AC mains or AC distribution networks
- H02J2203/10—Power transmission or distribution systems management focussing at grid-level, e.g. load flow analysis, node profile computation, meshed network optimisation, active network management or spinning reserve management
-
- 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
- H02J2207/00—Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J2207/20—Charging or discharging characterised by the power electronics converter
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L2012/40208—Bus networks characterized by the use of a particular bus standard
- H04L2012/40215—Controller Area Network CAN
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L2012/40208—Bus networks characterized by the use of a particular bus standard
- H04L2012/40221—Profibus
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Signal Processing (AREA)
- Computing Systems (AREA)
- Computer Security & Cryptography (AREA)
- Human Computer Interaction (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The application relates to a whole-pack utilization system of retired power battery packs, wherein the number of retired power battery packs is at least two, and the number of conversion structural members and energy storage converters is the same as that of the retired power battery packs, so that the retired power battery packs, the conversion structural members and the energy storage converters are in one-to-one correspondence; each retired power battery pack is connected with a corresponding conversion structural member, the conversion structural member is connected with a corresponding energy storage converter, and the energy storage converter is used for connecting a power grid; each energy storage converter is also respectively connected with an energy management system. Therefore, different interfaces and systems are not required to be customized for different types of retired power battery packs, so that the cost for processing the retired power battery packs is reduced, the retired power battery packs with different performances can be combined in the energy storage system, the original abandoned retired power battery packs can be reused and used rapidly, the flexibility and adaptability of the energy storage system are improved, and the effect of utilizing resources to the maximum extent is achieved.
Description
Technical Field
The application relates to the field of retired power battery recycling, in particular to a whole retired power battery pack recycling system.
Background
The industry development of the power battery applied to electric vehicles and the like is rapid, and the power battery can be retired by 80% of the capacity according to the national standard of new energy automobiles, otherwise, the endurance mileage is reduced, so that the power battery enters the large-scale retirement period, and the retired power battery in China in 2023 years is about 60 ten thousand tons according to statistics, and the retirement amount of the power battery in China from 2028 years is expected to exceed 260 ten thousand tons each year.
The power battery of the electric vehicle usually exists in a battery pack, if the power battery in the retired power battery pack is directly scrapped, not only can the resource waste be caused, but also the harm to the environment can be caused, and the retired power battery can still be used in scenes with low requirements on battery performance, such as engineering machinery, small power, energy storage and the like, for example, electric bicycles.
The existing reuse mode for retired power batteries is to disassemble the whole package, clean and reuse qualified power batteries, and discard or continue to disassemble unqualified power batteries. But there is currently no solution for the overall utilization of retired power battery packs.
Disclosure of Invention
Based on this, it is necessary to provide a whole-package utilization system of the retired power battery package.
In one embodiment, a retired power battery pack-in-pack utilization system includes an energy management system, retired power battery packs, a conversion structure and an energy storage converter:
The number of the retired power battery packs is at least two, and the number of the conversion structural members and the number of the energy storage converters are the same as the number of the retired power battery packs, so that the retired power battery packs, the conversion structural members and the energy storage converters are in one-to-one correspondence;
Each retired power battery pack is connected with a corresponding conversion structural member, the conversion structural member is connected with a corresponding energy storage converter, and the energy storage converter is used for being connected with an output side;
and each energy storage converter is also respectively connected with the energy management system.
According to the whole decommissioning power battery pack utilization system, through the design of the conversion structure conversion function, a universal interface and a universal system can be used, different interfaces and systems are not required to be customized for different types of decommissioning power battery packs, and the battery packs are not required to be disassembled, so that the cost for processing the decommissioning power battery packs is reduced, the decommissioning power battery packs with different performances can be combined in an energy storage system, the original abandoned decommissioning power battery packs can be reused and utilized rapidly, the flexibility and the adaptability of the energy storage system are improved, the effect of utilizing resources to the maximum extent is achieved, waste is reduced, and a more sustainable solution is provided for the renewable energy storage field.
In one embodiment, each of the conversion structure members is integrally provided as a unitary conversion module.
In one embodiment, the conversion module is provided with a connection terminal and a protocol conversion module;
the protocol conversion module is connected with the retired power battery pack and the energy storage converter through the connecting terminals respectively, and is used for converting a communication protocol between the retired power battery pack and the energy storage converter.
In one embodiment, the protocol conversion module comprises a conversion processing sub-module, and a protocol storage sub-module and a transmission sub-module which are connected with the conversion processing sub-module;
The protocol storage submodule is used for storing a communication protocol of the retired power battery pack and a communication protocol of the energy storage converter;
The conversion processing sub-module is used for converting the communication protocol between the retired power battery pack and the energy storage converter according to the communication protocol of the retired power battery pack and the communication protocol of the energy storage converter stored by the protocol storage sub-module;
The transmission sub-module is used for receiving external instructions and updating the communication protocol of the retired power battery pack and the communication protocol of the energy storage converter, which are stored by the protocol storage sub-module.
In one embodiment, the conversion module is further provided with an information logging module, and the information logging module is used for logging in parameters of the retired power battery pack.
In one embodiment, the information logging module includes a scanning sub-module, a keyboard sub-module, a wireless input sub-module, and a radio frequency identification sub-module, which are respectively configured to log in parameters of the retired power battery pack in a scanning manner, a keyboard input manner, a wireless input manner, or a radio frequency identification manner.
In one embodiment, the energy storage converter includes a controller, an input end connected to the controller, a dc-ac converter and an output end, wherein the dc-ac converter is connected to the conversion structure through the input end and is connected to the energy management system through the output end, and the dc-ac converter is further connected to the conversion structure through the input end and is connected to the output end through the output end.
In one embodiment, the output end includes a low voltage end and a high voltage end, the low voltage end is connected to the energy management system, and the high voltage end is connected to the output side.
In one embodiment, the energy management system includes a management module and a detection module connected;
The detection module is used for detecting the charge state of the retired power battery pack connected with the conversion structural member through the energy storage converter and the conversion structural member, and sending the charge state to the management module;
the management module is used for controlling the charging and discharging processes of all the retired power battery packs.
In one embodiment, the energy management system further includes a transceiver module, where the transceiver module is connected to the management module, and the management module gathers charge states and charge and discharge information of each of the retired power battery packages, and is configured to report the charge states and the charge and discharge information of each of the retired power battery packages through the transceiver module.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments or the conventional techniques of the present application, the drawings required for the descriptions of the embodiments or the conventional techniques will be briefly described below, and it is apparent that the drawings in the following descriptions are only some embodiments of the present application, and other drawings may be obtained according to the drawings without inventive effort for those skilled in the art.
Fig. 1 is a schematic structural diagram of an embodiment of a whole-package utilization system of a retired power battery pack according to the present application.
Fig. 2 is a schematic structural diagram of another embodiment of the whole-package utilization system of the retired power battery package according to the present application.
Fig. 3 is a schematic structural diagram of another embodiment of the whole-package utilization system of the retired power battery package according to the present application.
Fig. 4 is a schematic structural diagram of another embodiment of the whole-package utilization system of the retired power battery package according to the present application.
Detailed Description
In order that the above objects, features and advantages of the application will be readily understood, a more particular description of the application will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. The present application may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the application, whereby the application is not limited to the specific embodiments disclosed below.
It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When a component is considered to be "connected" to another component, it can be directly connected to the other component or intervening components may also be present. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and the like are used in the description of the present application for the purpose of illustration only and do not represent the only embodiment.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present application, unless expressly stated or limited otherwise, a first feature "up" or "down" on a second feature may be that the first feature is in direct contact with the second feature, or that the first feature and the second feature are in indirect contact through intermedial media. Moreover, a first feature "above," "over" and "on" a second feature may be a first feature directly above or obliquely above the second feature, or simply indicate that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely under the second feature, or simply indicating that the first feature is less level than the second feature.
Unless defined otherwise, all technical and scientific terms used in the specification of the present application have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and/or" as used in the description of the present application includes any and all combinations of one or more of the associated listed items.
The application discloses a whole-package utilization system of a retired power battery package, which comprises part of technical features or all the technical features of the following embodiments; that is, the retired power battery pack whole pack utilization system includes the following partial structure or all the structures. In one embodiment of the application, a retired power battery pack utilization system comprises an energy management system, a retired power battery pack, a conversion structural member and an energy storage converter: the number of the retired power battery packs is at least two, and the number of the conversion structural members and the number of the energy storage converters are the same as the number of the retired power battery packs, so that the retired power battery packs, the conversion structural members and the energy storage converters are in one-to-one correspondence; each retired power battery pack is connected with a corresponding conversion structural member, the conversion structural member is connected with a corresponding energy storage converter, and the energy storage converter is used for being connected with an output side; and each energy storage converter is also respectively connected with the energy management system. According to the whole decommissioning power battery pack utilization system, the universal interface and system can be used through the design of the conversion structure conversion function, different interfaces and systems are not required to be customized for different types of decommissioning power battery packs, so that the cost for processing the decommissioning power battery packs is reduced, the decommissioning power battery packs with different performances can be combined in the energy storage system, the original abandoned decommissioning power battery packs can be reused and utilized rapidly, the flexibility and the adaptability of the energy storage system are improved, the effect of utilizing resources to the maximum extent is achieved, waste is reduced, and a more sustainable solution is provided for the renewable energy storage field.
The whole-package utilization system of the retired power battery package will be described in detail with reference to fig. 1 to 4.
In one embodiment, a retired power battery pack full pack utilization system is shown in fig. 1, comprising an energy management system (ENERGY MANAGEMENT SYSTEM, EMS), retired power battery packs, conversion structure and energy storage converters (Power Conversion System, PCS): the retired power battery pack usually has 60 to 80 percent of capacity, and in practical application, the capacity of the retired power battery pack is less than 20 percent; the conversion structural member is used for enabling the energy storage converter and the retired power battery pack to be in communication connection and electric connection; the energy management system is used for realizing management of the retired power battery pack, the conversion structural member and the energy storage converter, including but not limited to charge and discharge management of the retired power battery pack. Each retired power battery pack is connected with a corresponding conversion structural member, the conversion structural member is connected with a corresponding energy storage converter, and the energy storage converter is used for being connected with an output side; and each energy storage converter is also respectively connected with the energy management system. The output party is used for inputting or outputting electric energy, in this embodiment, the output party is a power grid, and in other embodiments, the output party may further include other loads, devices or equipment.
In order to facilitate the integral connection, each conversion structural member is integrally provided as an integral conversion module, and in each related embodiment, the conversion module and the conversion structural member thereof are one of important application points of the present application, each conversion structural member is integrally provided, which may also be referred to as a conversion module, and the conversion module may be provided with other structures besides the conversion structural member, and the main function of the conversion module is to establish information communication and send instructions. Further, in one embodiment, each conversion structural member is integrally provided as a whole conversion module, and the conversion module further comprises a power supply module, which is connected with each conversion structural member respectively, and is used for supplying power to the conversion structural member and supplying power to the retired power battery pack connected with the conversion structural member through the conversion structural member; each conversion structural member is respectively connected with the energy management system, including being directly connected with the energy management system or indirectly connected with the energy management system through each energy storage converter; each conversion structural member is connected with one decommissioning power battery pack, namely, each decommissioning power battery pack is connected with a corresponding conversion structural member, and when the quantity of the decommissioning power battery packs is insufficient, the conversion structural members can be disconnected, namely, the conversion structural members are in an empty state; similarly, each conversion structural member is connected with one energy storage converter, namely the retired power battery pack, the conversion structural members and the energy storage converters are in one-to-one correspondence; the conversion structural member is used for protocol conversion, data summarization and data interaction; the power supply module is respectively and electrically connected with the conversion structural members and is used for supplying power to each conversion structural member so that the conversion structural members directly activate the battery management unit of the retired power battery pack to establish connection. By means of the design, the transmission protocol of the conversion structural part and the battery pack BMS can be built through the conversion module, and therefore the whole-pack energy storage application of the echelon battery is achieved on the premise that the battery pack is not unpacked.
In one embodiment, the conversion module or the conversion structural member thereof is provided with a connection terminal and a protocol conversion module; the protocol conversion module is connected with the retired power battery pack and the energy storage converter through the connecting terminals respectively, and is used for converting a communication protocol between the retired power battery pack and the energy storage converter. Further, in one embodiment, each of the conversion structural members is provided with the connection terminal and the protocol conversion module, and the conversion structural members are optionally connected or disconnected with the retired power battery pack; in one embodiment, the conversion structural member is connected to the retired power battery pack and the energy storage converter through the connection terminals respectively, and in a state of being connected to the retired power battery pack, the conversion structural member converts a communication protocol between the retired power battery pack and the energy storage converter through the protocol conversion module. By the design, various retired power battery packs of different types can be uniformly connected into the retired power battery pack whole pack utilization system, and can be used as a set of complete energy storage system and can be externally connected with a power grid for use; and the universal interface and system can be used without customizing different interfaces and systems for different types of retired power battery packs, so that the cost for processing the retired power battery packs is reduced, a large number of retired power battery packs can be applied, and a large number of retired power battery packs of various types can be quickly connected.
Further, in one embodiment, each conversion structural member is integrally provided as an integral conversion module, and the retired power battery pack whole-pack utilization system further includes a power supply module, where the power supply module is connected to each conversion structural member, and the power supply module is used for supplying power to the conversion structural member and supplying power to the retired power battery pack connected to the conversion structural member through the conversion structural member. Further, in one embodiment, the conversion module is provided with the connection terminal and the protocol conversion module, and the conversion module is only provided with one protocol conversion module, and each conversion structural member converts a communication protocol between the retired power battery pack and the energy storage converter through the protocol conversion module; each conversion structure member in the conversion module corresponds to one set of connection terminals independently, namely, each set of connection terminals corresponds to one conversion structure member independently, each conversion structure member corresponds to each set of connection terminals one by one, and the conversion structure member is connected with the retired power battery pack and the energy storage converter through one set of connection terminals connected with the conversion structure member.
Further, in one embodiment, the conversion structural member performs high-voltage power-up, charging and discharging on the connected retired power battery pack, and the conversion structural member controls the power supply module to wake up a battery management unit of the retired power battery pack, performs self-inspection on each power battery in the retired power battery pack, and sends a self-inspection result to the conversion module, for example, the conversion structural member; under the control of the conversion structural component, the power supply module in the conversion module provides low voltage for the battery management unit of the retired power battery pack, so that the battery management unit is awakened to perform self-checking, and the retired power is allowed to be electrified at high voltage after the self-checking passes. And under the high-voltage and high-voltage state, the battery management system of the retired power battery pack can acquire the information of each power battery in the retired power battery pack and send the information to the energy management system, so that the information processing of the temperature, the voltage, the power battery charge state, the power battery health state, the battery pack discharge depth, the battery residual energy and the like of the retired power battery pack is realized. According to the information processing result, the conversion structural member charges the retired power battery pack to be charged through the connected energy storage converter; and according to the information processing result, discharging the output party by the conversion structural member through the connected energy storage converter for the retired power battery pack capable of discharging and outputting. Because various retired power battery packs may have different capacities, different volumes, different battery failure states and the like, the parallel connection or the serial connection is realized through the conversion structural member, and each retired power battery pack is combined and connected into an equal-voltage circuit or an equal-current circuit, so that the output state of the retired power battery pack whole pack utilization system to the output side is kept consistent and stable.
In order to facilitate coping with various types of retired power battery packages, especially retired power battery packages that are continuously updated, in one embodiment, the protocol conversion module includes a conversion processing sub-module and a protocol storage sub-module and a transmission sub-module that are connected to the conversion processing sub-module; the protocol storage submodule is used for storing a communication protocol of the retired power battery pack and a communication protocol of the energy storage converter; the conversion processing sub-module is used for converting the communication protocol between the retired power battery pack and the energy storage converter according to the communication protocol of the retired power battery pack and the communication protocol of the energy storage converter stored by the protocol storage sub-module; the transmission sub-module is used for receiving external instructions and updating the communication protocol of the retired power battery pack and the communication protocol of the energy storage converter, which are stored by the protocol storage sub-module. The design makes it possible to use the retired power battery pack entirely without unpacking.
In order to quickly identify various types of retired power battery packs, in one embodiment, the conversion module or the conversion structural member thereof is further provided with an information logging module, and the information logging module is used for logging parameters of the retired power battery packs. In one embodiment, the information logging module includes a scanning sub-module for logging parameters of the retired power battery pack in a scanning manner. In one embodiment, the information logging module includes a key tray module for logging in parameters of the retired power battery pack in a keyboard input mode. In one embodiment, the information logging module includes a wireless input submodule, such as a bluetooth module or a WIFI module, and is configured to log parameters of the retired power battery pack in a wireless input manner. In one embodiment, the information logging module includes a radio frequency identification sub-module for logging parameters of the retired power battery pack in a radio frequency identification manner. In one embodiment, the information logging module includes a scanning sub-module, a keyboard sub-module, a wireless input sub-module, and a radio frequency identification sub-module, which are respectively configured to log in parameters of the retired power battery pack in a scanning manner, a keyboard input manner, a wireless input manner, or a radio frequency identification manner. The rest of the embodiments are analogized and will not be described in detail. The design is favorable for quickly identifying various types of retired power battery packs, so that the conversion structural member accurately converts a communication protocol between the retired power battery packs and the energy storage converter, and is particularly suitable for retired power battery packs of some types which are relatively not commonly used, so that the retired power battery packs which are abandoned originally can be reused and quickly utilized, the flexibility and the adaptability of an energy storage system are improved, the effect of maximally utilizing resources is achieved, and the waste is reduced.
In this embodiment, the number of the retired power battery packs is two, and in other embodiments, the number of the retired power battery packs may be more than two, that is, the number of the retired power battery packs is at least two. The quantity of the retired power battery packs, the conversion structural members and the energy storage converters is the same, and the retired power battery packs, the conversion structural members and the energy storage converters are in one-to-one correspondence, namely, the quantity of the conversion structural members and the energy storage converters is the same as that of the retired power battery packs, so that the retired power battery packs, the conversion structural members and the energy storage converters are in one-to-one correspondence; that is, each of the retired power battery packs, each of the conversion structural members and each of the energy storage converters are in one-to-one correspondence, each of the retired power battery packs corresponds to one of the conversion structural members and one of the energy storage converters, each of the conversion structural members corresponds to one of the retired power battery packs and one of the energy storage converters, and each of the energy storage converters corresponds to one of the conversion structural members and one of the retired power battery packs. The whole package utilization system of the retired power battery package comprises an energy management system and at least two groups of energy storage devices, wherein each group of energy storage devices comprises one retired power battery package, one conversion structural member and one energy storage converter.
In one embodiment, the whole decommissioning system of the power battery pack is shown in fig. 2, and includes an energy management system and three sets of energy storage devices, where each set of energy storage devices includes one decommissioning power battery pack, one conversion structure and one energy storage converter. The energy storage converters of each group of energy storage devices are respectively connected with the energy management system. In other embodiments, to facilitate the integral connection, each of the conversion structural members is integrally provided as an integral conversion module for application in some specific scenarios.
Further, in one embodiment, as shown in fig. 3, the retired power battery pack whole-pack utilization system further includes a converter, and each energy storage converter is connected to the power grid through the converter respectively.
The embodiment shown in fig. 3 only shows an embodiment in which the number of the retired power battery packs, the conversion structural members and the energy storage converters is two, and it is understood that a plurality of retired power battery packs, the conversion structural members and the energy storage converters, the number of which is the same as that of the retired power battery packs, may be provided in practical application. In one embodiment, as shown in fig. 4, the whole-package utilization system of the retired power battery package includes an energy management system, N retired power battery packages, N conversion structural members and N energy storage converters, where N is a natural number greater than or equal to 2, and in this embodiment, N is greater than 2. Each retired power battery pack is connected with a corresponding conversion structural member, the conversion structural member is connected with a corresponding energy storage converter, and the energy storage converter is used for being connected with an output side; and each energy storage converter is also respectively connected with the energy management system. The rest of the embodiments are analogized and will not be described in detail.
The energy storage converter is used for controlling the charging and discharging processes of the retired power battery pack, so that the retired power battery pack can realize alternating current-direct current conversion, and can directly supply power to an alternating current load and can also be adjusted to supply power to a direct current load if necessary in a state that the power grid is not connected but other output parties are connected. In one embodiment, the energy storage converter includes a controller, an input end connected to the controller, a dc-ac converter and an output end, wherein the controller controls the input end, the dc-ac converter and the output end to implement a design function, the dc-ac converter is connected to the conversion structure through the input end, is connected to the energy management system through the output end, and is further connected to the conversion structure through the input end, and is connected to the power grid through the output end. In one embodiment, the output terminal includes a low voltage terminal connected to the energy management system and a high voltage terminal connected to the grid. The input end and the output end CAN be connected with a CAN protocol, a ModBUS protocol and the like so as to realize the functions of charging or discharging the battery, adjusting the power of a power grid and the like.
In one embodiment, the energy management system includes a management module and a detection module connected; the detection module is used for detecting the State of Charge (SOC) of the retired power battery pack connected with the conversion structural member through the energy storage converter and the conversion structural member, and sending the State of Charge (SOC) to the management module; the management module is used for controlling the charging and discharging processes of all the retired power battery packs. In one embodiment, the energy management system further includes a transceiver module, where the transceiver module is connected to the management module, and the management module gathers charge states and charge and discharge information of each of the retired power battery packages, and is configured to report the charge states and the charge and discharge information of each of the retired power battery packages through the transceiver module.
An example of a specific application of the retired power battery pack complete pack utilization system is provided below, and is described below.
Firstly, the retired battery pack BMS protocol is subjected to protocol conversion through a conversion structural member so as to adapt to the energy storage converter. This step is to ensure that the battery pack can be connected to the PCS and that energy transmission can be performed normally.
The converted battery pack will be connected to the PCS to achieve bi-directional flow of energy. This means that the battery pack can deliver stored energy to the PCS for later use, while the retired power battery pack can also harvest energy for charging.
In the whole energy storage system, namely the whole retired power battery pack utilization system, a plurality of units processed through the steps are used as energy storage equipment. These units are collectively processed by the energy management system. The EMS is responsible for controlling the charging and discharging processes of the energy storage system while monitoring state of charge information of the battery. Through control and monitoring of the EMS, safe operation and efficient utilization of the energy storage system can be ensured.
By adding a conversion structural member to realize the conversion function, the retired power battery packs with different colors, different batches, even different models and different manufacturers can be used in the same energy storage project, namely the retired power battery pack whole-pack utilization system. Therefore, the resource utilization efficiency is improved, and particularly, the originally abandoned energy storage equipment can be reused by converting different retired power battery packs into a universal format. Thus, resources can be utilized to the maximum extent, waste is reduced, and a more sustainable solution is provided for the renewable energy storage field.
And the realization cost of the energy storage system is reduced, and particularly, the cost expenditure in the energy storage project can be reduced by introducing a conversion structural member to realize the conversion function. Because by introducing this conversion structure, it is not necessary to customize different interfaces and systems for different retired power battery packs, but rather a common interface and system can be used, the cost of handling these retired power battery packs is reduced.
And the flexibility of the energy storage system is improved, and particularly, retired power battery packs with different colors, different batches, even different models and different manufacturers can have differences in voltage, capacity and the like. By introducing the conversion function of the conversion structural member, the retired power battery packs can be seamlessly integrated in the same energy storage project. This increases the flexibility and adaptability of the energy storage system.
And the performance of the energy storage system is further enhanced, and specifically, by introducing the conversion structure conversion function, retired power battery packs with different performances, such as retired power battery packs with high energy density and retired power battery packs with high power density, can be combined in the energy storage system. Therefore, the energy storage system can be optimally designed according to actual requirements, and the overall performance and efficiency of the energy storage system are improved.
In summary, the whole-package utilization system of the retired power battery pack has important improvements in aspects of resource utilization efficiency, cost, system flexibility, system performance and the like by designing a conversion function of a conversion structural member; and the universal conversion function is realized by providing the universal conversion structural member, so that retired power battery packs with different colors, different batches, even different models and different manufacturers can be effectively utilized in the same energy storage project, and a feasible solution is provided for the development of the renewable energy storage field.
It should be noted that, other embodiments of the present application further include a retired power battery pack whole-pack utilization system formed by combining technical features of the above embodiments.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples illustrate only a few embodiments of the application, which are described in detail and are not to be construed as limiting the scope of the claims. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the application, which are all within the scope of the application. Accordingly, the scope of the application should be determined from the following claims.
Claims (10)
1. The whole package utilization system of retired power battery package is characterized by comprising an energy management system, a retired power battery package, a conversion structural member and an energy storage converter:
The number of the retired power battery packs is at least two, and the number of the conversion structural members and the number of the energy storage converters are the same as the number of the retired power battery packs, so that the retired power battery packs, the conversion structural members and the energy storage converters are in one-to-one correspondence;
Each retired power battery pack is connected with a corresponding conversion structural member, the conversion structural member is connected with a corresponding energy storage converter, and the energy storage converter is used for being connected with an output side;
each energy storage converter is also respectively connected with the energy management system;
Each conversion structural member is integrated and arranged as a whole conversion module;
the conversion module is provided with a connecting terminal and a protocol conversion module, the conversion module is only provided with one protocol conversion module, the protocol conversion module is respectively connected with the retired power battery pack and the energy storage converter through the connecting terminal, and the protocol conversion module is used for converting a communication protocol between the retired power battery pack and the energy storage converter;
each conversion structural member respectively converts a communication protocol between the retired power battery pack and the energy storage converter through the protocol conversion module; each conversion structural member in the conversion module corresponds to one set of connecting terminal independently, and the conversion structural member is connected with the retired power battery pack and the energy storage converter through one set of connecting terminal connected with the conversion structural member;
The conversion structural member is used for carrying out high-voltage power-on, charging and discharging on the connected retired power battery pack, the conversion structural member is used for controlling the power supply module to wake up the battery management unit of the retired power battery pack, carrying out self-checking on each power battery in the retired power battery pack, and sending a self-checking result to the conversion module;
The method comprises the steps that under the high-voltage and high-voltage state, the battery management system of the retired power battery pack is used for acquiring information of each power battery in the retired power battery pack and sending the information to the energy management system, so that information processing of the temperature, the voltage, the power battery charge state, the power battery health state, the battery pack discharge depth and the battery residual energy of the retired power battery pack is realized;
according to the information processing result, the conversion structural member charges the retired power battery pack to be charged through the connected energy storage converter;
And according to the information processing result, discharging the output party by the conversion structural member through the connected energy storage converter for the retired power battery pack capable of discharging and outputting.
2. The retired power battery pack complete utilization system of claim 1, further comprising converters through which each of the energy storage converters is connected to a power grid.
3. The retirement power battery pack utilization system of claim 1, wherein each retirement power battery pack is connected in parallel or in series through the conversion structure to form an isobaric circuit or an isocurrent circuit.
4. The retired power battery pack complete pack utilization system according to claim 1, wherein the protocol conversion module comprises a conversion processing sub-module and a protocol storage sub-module and a transmission sub-module connected with the conversion processing sub-module;
The protocol storage submodule is used for storing a communication protocol of the retired power battery pack and a communication protocol of the energy storage converter;
The conversion processing sub-module is used for converting the communication protocol between the retired power battery pack and the energy storage converter according to the communication protocol of the retired power battery pack and the communication protocol of the energy storage converter stored by the protocol storage sub-module;
The transmission sub-module is used for receiving external instructions and updating the communication protocol of the retired power battery pack and the communication protocol of the energy storage converter, which are stored by the protocol storage sub-module.
5. The whole package utilization system of the retired power battery package according to claim 1, wherein the conversion module is further provided with an information logging module, and the information logging module is used for logging parameters of the retired power battery package.
6. The system according to claim 5, wherein the information logging module comprises a scanning sub-module, a key board sub-module, a wireless input sub-module and a radio frequency identification sub-module, and is configured to log in parameters of the retired power battery pack in a scanning manner, a keyboard input manner, a wireless input manner or a radio frequency identification manner, respectively.
7. The retired power battery pack utilization system of claim 1, wherein the energy storage converter comprises a controller, an input end connected with the controller, a direct current-alternating current converter and an output end, wherein the direct current-alternating current converter is connected with the conversion structural member through the input end and the energy management system through the output end, and is also connected with the conversion structural member through the input end and the output side through the output end.
8. The retired power battery pack utilization system of claim 7, wherein the output comprises a low voltage end and a high voltage end, the low voltage end being connected to the energy management system and the high voltage end being connected to the output side.
9. The retired power battery pack utilization system of any one of claims 1-8, wherein the energy management system comprises a management module and a detection module connected;
The detection module is used for detecting the charge state of the retired power battery pack connected with the conversion structural member through the energy storage converter and the conversion structural member, and sending the charge state to the management module;
the management module is used for controlling the charging and discharging processes of all the retired power battery packs.
10. The retired power battery pack complete pack utilization system of claim 9, further comprising a transceiver module connected to the management module, wherein the management module aggregates charge state and charge and discharge information of each retired power battery pack and is configured to report the charge state and charge and discharge information of each retired power battery pack through the transceiver module.
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