CN115173514A - Energy storage battery management system, method and application - Google Patents
Energy storage battery management system, method and application Download PDFInfo
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- CN115173514A CN115173514A CN202210846256.9A CN202210846256A CN115173514A CN 115173514 A CN115173514 A CN 115173514A CN 202210846256 A CN202210846256 A CN 202210846256A CN 115173514 A CN115173514 A CN 115173514A
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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
- H02J7/00032—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by data exchange
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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
- H01M10/44—Methods for charging or discharging
- H01M10/441—Methods for charging or discharging for several batteries or cells simultaneously or sequentially
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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
- H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0063—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with circuits adapted for supplying loads from the battery
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L49/00—Packet switching elements
- H04L49/55—Prevention, detection or correction of errors
- H04L49/552—Prevention, detection or correction of errors by ensuring the integrity of packets received through redundant connections
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The application discloses energy storage battery management system includes: an upper computer; the main control module comprises a first main control unit and a second main control unit which are in mutual redundant backup and are respectively connected with a first communication interface and a second communication interface of the upper computer through respective third communication interfaces and fourth communication interfaces to form a first communication link and a second communication link; the plurality of slave control modules are respectively connected with the fifth communication interface of the first master control unit and the sixth communication interface of the second master control unit through respective seventh communication interfaces and are accessed into the first communication link; the sixth communication interface of the second main control unit and the fifth communication interface of the first main control unit are connected through the eighth communication interface, and the second communication link is accessed; the plurality of battery modules are used for acquiring the state information of the corresponding battery modules by the slave control module and feeding the state information back to the master control module; and the charging contactor and the discharging contactor are controlled to act by the main control module respectively. The problem that when a plurality of control units of an existing battery management system are hung on the same bus and a certain node goes wrong, the whole line cannot work normally can be solved.
Description
Technical Field
The present disclosure relates to the field of battery technologies, and in particular, to an energy storage battery management system, an energy storage battery management method, an electronic device, and a computer-readable storage medium.
Background
The energy storage battery management system is usually used as a backup power supply outside the power supply of the power grid, and when the power grid fails and cannot supply power to the load continuously, the system is switched to a battery power supply mode to support the normal operation of the load. Since the voltage of a single battery is not low enough to meet most load power requirements, energy storage battery management systems typically consist of multiple cells connected in series and parallel. Due to the difference between the single batteries and the phenomenon of insufficient battery power or battery overshoot during the charging and discharging processes of the batteries, the normal power supply of the battery pack and the stable and reliable work of the battery pack can be influenced. Therefore, the voltage of each single battery needs to be detected and monitored during the use process of the battery, and then equalization measures are taken to maintain the consistent characteristics of the battery units. In addition, the battery pack has large working current and is generally installed in a closed narrow space, so that the service life of the battery pack is often damaged due to high temperature of the battery pack, and the state detection of the battery pack is needed. A Battery Management System (BMS) is used to detect and manage the battery state while interacting and communicating with users.
The existing battery management system adopts a master-slave topology structure, also called a distributed structure, and utilizes a CAN bus to manage and communicate each unit.
Disclosure of Invention
The invention provides an energy storage battery management system, an energy storage battery management method and an energy storage battery management application, aiming at solving the problem that when a plurality of control units of the existing battery management system are hung on the same bus, the whole line cannot work normally when a certain node goes wrong.
To achieve the above object, according to a first aspect of the present invention, there is provided an energy storage battery management system comprising: the upper computer comprises a first communication interface and a second communication interface; the main control module comprises a first main control unit and a second main control unit which are in mutual redundant backup, and the first main control unit and the second main control unit are respectively connected with the first communication interface of the upper computer through respective third communication interfaces to form a first communication link and connected with the second communication interface of the upper computer through respective fourth communication interfaces to form a second communication link; the plurality of slave control modules are respectively connected with the fifth communication interface of the first master control unit and the sixth communication interface of the second master control unit through respective seventh communication interfaces and are accessed into the first communication link; the sixth communication interface of the second main control unit and the fifth communication interface of the first main control unit are connected through respective eighth communication interfaces, and the second communication link is accessed; the plurality of battery modules are respectively connected with the corresponding slave control modules, so that the slave control modules collect the state information of the battery modules and feed the state information back to the master control module; and the charging contactor and the discharging contactor are controlled to act by the main control module respectively, wherein the charging contactor is connected between the battery module and a power grid, and the discharging contactor is connected between the battery module and a load.
In an embodiment of the present invention, each slave control module includes a first slave control unit and a second slave control unit, which are redundant and backup to each other, and respectively include the corresponding seventh communication interface and the eighth communication interface.
In an embodiment of the present invention, the first communication interface, the second communication interface, the third communication interface, the fourth communication interface, the fifth communication interface, the sixth communication interface, the seventh communication interface, and the eighth communication interface all employ CAN communication interfaces.
In an embodiment of the present invention, the charging contact includes a first charging contact unit and a second charging contact unit that are redundant and backup to each other, and are respectively connected to the first main control unit and the second main control unit; the discharge contactor comprises a first discharge contact unit and a second discharge contact unit which are redundant backups of each other and are respectively connected with the first main control unit and the second main control unit.
In one embodiment of the invention, the charging contactor and the discharging contactor are connected to the grid and the load through a converter.
According to a second aspect of the present invention, there is also provided an energy storage battery management method, which is applied to the energy storage battery management system according to any one of the above embodiments, and includes: the main control module acquires a control instruction of the upper computer, controls the power grid to charge the battery module when the charging contactor is closed according to the control instruction, and controls the load to discharge the battery module when the discharging contactor is closed; the first control unit and the second control unit of the master control module are connected with the first communication interface and the second communication interface of the upper computer through respective third communication interfaces and fourth communication interfaces to form a dual-communication link redundancy backup; the slave control module acquires state information of a corresponding battery module and feeds the state information back to the master control module, and the master control module forwards the state information to the upper computer to form a control closed loop; the slave control module is connected with a fifth communication interface of the first master control unit and a sixth communication interface of the second master control unit through respective seventh communication interfaces, and is accessed to the first communication link; and connecting a sixth communication interface of the second main control unit and a fifth communication interface of the first main control unit through respective eighth communication interfaces, and accessing the second communication link to form a cross redundancy backup between the main control module and the slave control module.
In an embodiment of the present invention, the obtaining, by the slave control module, the state information of the corresponding battery module and feeding back the state information to the master control module includes: the first slave control unit and the second slave control unit of each slave control module which are redundant and backup to each other acquire the state information of the corresponding battery module, and the first slave control unit and the second slave control unit feed back the state information to the master control unit.
In an embodiment of the present invention, the controlling, according to the control command, the power grid to charge the battery module when the charging contactor is controlled to be closed, and controlling the load to discharge the battery module when the discharging contactor is controlled to be closed includes: the first main control unit and the second main control unit are respectively connected with the first charging contact unit and the second charging contact unit of which the charging contactors are redundant and backed up, and the first discharging contact unit and the second discharging contact unit of which the discharging contactors are redundant and backed up, so as to send control commands to control the charging contactors and the discharging contactors to act.
According to a third aspect of the present invention, there is also provided an electronic device comprising at least one processing unit, and at least one memory unit, wherein the memory unit stores a computer program that, when executed by the processing unit, causes the processing unit to perform the steps of the method of any of the above embodiments.
According to a fourth aspect of the present invention, there is also provided a computer-readable storage medium storing a computer program executable by an access authentication apparatus, the computer program, when run on the access authentication apparatus, causing the access authentication apparatus to perform the steps of the method of any one of the above embodiments.
In general, compared with the prior art, the above technical solution contemplated by the present invention can achieve at least the following advantages:
1) The main control module is subjected to dual-redundancy hot backup on the electrical design of hardware, each of the two main control units comprises four communication interfaces, the third communication interface and the fourth communication interface of the main control module are respectively connected with the first communication interface and the second communication interface of the upper computer to form two communication networks which are backed up with each other, the fifth communication interface of the first main control unit and the sixth communication interface of the second main control unit are connected with the seventh communication interface of the slave control unit, the fifth communication interface of the second main control unit and the sixth communication interface of the first main control unit are connected with the eighth communication interface of the slave control unit, a communication framework of cross-redundancy backup between the main control units and the slave control units is realized, the anti-interference capability of the two communication networks is greatly enhanced, and even if the fifth communication interface or the sixth communication interface of the main control module fails, the two communication networks accessed by the main control module can still stably run;
2) The slave control unit, the charging contactor and the discharging contactor all adopt 1+1 redundancy hot backup to ensure the reliable operation of the modules, and the connecting lines among the modules all adopt two parallel connecting lines to ensure the reliability of the connecting lines, so that the system can be suitable for occasions with requirements on the reliability of a power supply system.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an energy storage battery management system according to an embodiment of the present disclosure;
fig. 2 is a flowchart of an energy storage battery management method according to an embodiment of the present disclosure.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
The terms "first," "second," "third," and the like in the description and claims of this application and in the foregoing drawings are used for distinguishing between different elements and not for describing a particular sequential order. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.
As shown in fig. 1, a Battery Management System (BMS) according to a first embodiment of the present invention includes: the system comprises an upper computer, a master control module, a plurality of slave control modules, a plurality of battery modules, a charging contactor, a discharging contactor and a charging contactor, wherein the battery modules correspond to the slave control modules one by one, and the charging contactor controls an accessed power supply grid and the discharging contactor controls an accessed load.
Reference herein to a higher-level computer is made, for example, to a personal computer, hand-held device, portable device, tablet device, multiprocessor system, microprocessor-based system, editable consumer electronics, network PC, minicomputer, mainframe computer, distributed computing environment that includes any of the above systems or devices, and the like. The upper computer and the main control module are communicated in a 1+1 hot backup mode, specifically, the upper computer comprises a first communication interface and a second communication interface, a third communication interface of the main control module is connected with the first communication interface of the upper computer to form a first communication link, and the fourth communication interface is connected with the second communication interface of the upper computer to form a second communication link.
Further, the master control module includes, for example, a first master control Unit and a second master control Unit that are redundantly backed up with each other, where the mentioned master control Unit is a Battery Management Unit (BMU) and is configured to communicate with an upper computer, acquire an upper computer control instruction to control a power grid to charge the Battery module when the charging contactor is closed, and control a load to discharge the Battery module when the discharging contactor is closed.
The two master control units are respectively provided with a fifth communication interface and a sixth communication interface besides the third communication interface and the fourth communication interface, and the plurality of slave control modules are respectively connected with the fifth communication interface of the first master control unit and the sixth communication interface of the second master control unit through respective seventh communication interfaces and are accessed into the first communication link; and the sixth communication interface of the second main control unit and the fifth communication interface of the first main control unit are connected through respective eighth communication interfaces, and the second communication link is accessed. Therefore, a communication architecture of cross redundancy backup between the master control unit and the slave control unit is realized, the anti-interference capability of the two communication networks is greatly enhanced, and the two communication networks accessed by the master control module can still stably operate even if the fifth or sixth communication interface of the master control module fails.
Furthermore, each slave control module includes, for example, a first slave control unit and a second slave control unit which are redundant backup with each other, and each of the first slave control unit and the second slave control unit includes a corresponding seventh communication interface and an eighth communication interface, and is connected with the first master control unit and the second master control unit in the above-mentioned cross-redundancy backup manner, thereby further improving the reliability of the system. The slave control Unit is a Cell Monitor Unit (CMU) and is configured to measure state information of the corresponding battery module, such as voltage, current, and temperature, and feed back the state information to the BMU. The BMU can evaluate the data transmitted by the CMU, if the data is abnormal, the BMU can protect the battery and send out the requirement of reducing the current, or cut off the charge and discharge path to avoid the battery exceeding the allowable use condition, and simultaneously manage the electric quantity and the temperature of the battery. In addition, parameters and states needing to be warned can be judged according to a control strategy designed previously, warning information is sent to an upper computer, and finally the warning information is transmitted to an operator.
Furthermore, the first communication interface, the second communication interface, the third communication interface, the fourth communication interface, the fifth communication interface, the sixth communication interface, the seventh communication interface and the eighth communication interface all adopt CAN communication interfaces, for example, so as to form two CAN bus communication networks among the upper computer, the master control module and the slave control module, thereby improving the reliability of the system.
The charging contactor is connected between the battery module and a power grid, the discharging contactor is connected between the battery module and a load, and the main control module controls the charging contactor and the discharging contactor to be switched on and off. Specifically, for example, the main control unit performs judgment processing after receiving the battery pack state information, and if the battery pack is in a full charge state, the main control unit controls the discharge contactor to be closed, so that the battery pack discharges to the load; and if the electric quantity of the battery pack is lower than a certain degree, the main control unit controls the charging contact to be closed, so that the battery pack is charged by the power grid. And converters are connected between the charging contactor and the power grid and between the discharging contactor and the load to realize alternating current-direct current conversion or direct current-alternating current conversion.
Further, the charging contact device comprises a first charging contact unit and a second charging contact unit which are redundant backup with each other and are respectively connected with the first main control unit and the second main control unit; the discharge contactor comprises a first discharge contact unit and a second discharge contact unit which are redundant and backup with each other, and the first discharge contact unit and the second discharge contact unit are respectively connected with the first main control unit and the second main control unit, so that the slave control unit, the charging contactor and the discharge contactor all adopt 1+1 redundant hot backup to ensure the reliable operation of the modules, and the connecting lines among the modules all adopt two parallel connecting lines to ensure the reliability of the connecting lines, so that the discharge contactor can be suitable for occasions with requirements on the reliability of a power supply system.
In summary, in the energy storage battery management system provided in the first embodiment of the present invention, the main control module is subjected to dual redundancy hot backup in a hardware electrical design, each of the two main control units includes four communication interfaces, a third communication interface and a fourth communication interface of the two main control units are respectively connected to a first communication interface and a second communication interface of an upper computer, so as to form two communication networks that are backed up with each other, a fifth communication interface of the first main control unit and a sixth communication interface of the second main control unit are connected to a seventh communication interface of the slave control unit, and a fifth communication interface of the second main control unit and a sixth communication interface of the first main control unit are connected to an eighth communication interface of the slave control unit, so as to implement a communication architecture of cross redundancy backup between the main control units and the slave control units, and greatly enhance the anti-interference capability of the two communication networks, so that even if the fifth communication interface or the sixth communication interface of the main control module fails, the connected communication network can still stably operate; the slave control unit, the charging contactor and the discharging contactor all adopt 1+1 redundancy hot backup to ensure the reliable operation of the modules, and the connecting lines among the modules all adopt two parallel connecting lines to ensure the reliability of the connecting lines, so that the system can be suitable for occasions with requirements on the reliability of a power supply system.
The second embodiment of the present invention further provides a method for managing an energy storage battery, for example, including the steps of S1: the main control module acquires a control instruction of the upper computer, controls the power grid to charge the battery module when the charging contactor is closed according to the control instruction, and controls the load to discharge the battery module when the discharging contactor is closed; the first control unit and the second control unit of the main control module are connected with the first communication interface and the second communication interface of the upper computer through respective third communication interfaces and fourth communication interfaces to form a dual communication link redundancy backup; step S2: the slave control module acquires state information of a corresponding battery module and feeds the state information back to the master control module, and the master control module forwards the state information to the upper computer to form a control closed loop; the slave control module is connected with a fifth communication interface of the first master control unit and a sixth communication interface of the second master control unit through respective seventh communication interfaces, and is accessed to the first communication link; and connecting a sixth communication interface of the second main control unit and a fifth communication interface of the first main control unit through respective eighth communication interfaces, and accessing the second communication link to form a cross redundancy backup between the main control module and the slave control module.
It should be noted that the energy storage battery management method disclosed in the second embodiment of the present invention is applicable to the energy storage battery management system provided in the first embodiment, and the specific structure and function of the energy storage battery management system may refer to the content described in the first embodiment, and for brevity, detailed description is omitted here, and the burst-type missile launching control method provided in this embodiment has the same beneficial effects as the energy storage battery management system provided in the first embodiment.
In addition, a third embodiment of the present invention also provides an electronic device, for example, including: the electronic device comprises at least one processing unit and at least one storage unit, wherein the storage unit stores a computer program, and when the computer program is executed by the processing unit, the processing unit is enabled to execute the method according to the first embodiment, and the electronic device provided by the embodiment has the same beneficial effects as the energy storage battery management method provided by the first embodiment.
In addition, the fourth embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps of the energy storage battery management method, and the beneficial effects of the computer-readable storage medium provided by this embodiment are the same as the beneficial effects of the energy storage battery management method provided by the third embodiment.
The computer-readable storage medium may include, but is not limited to, any type of disk including floppy disks, optical disks, DVD, CD-ROMs, microdrive, and magneto-optical disks, ROMs, RAMs, EPROMs, EEPROMs, DRAMs, VRAMs, flash memory devices, magnetic or optical cards, nanosystems (including molecular memory ICs), or any type of media or device suitable for storing instructions and/or data.
It should be noted that, for simplicity of description, the above-mentioned method embodiments are described as a series of acts or combination of acts, but those skilled in the art will recognize that the present application is not limited by the order of acts described, as some steps may occur in other orders or concurrently depending on the application. Further, those skilled in the art should also appreciate that the embodiments described in the specification are preferred embodiments and that the acts and modules referred to are not necessarily required in this application.
In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
In the several embodiments provided in the present application, it should be understood that the disclosed apparatus may be implemented in other manners. For example, the above-described embodiments of the apparatus are merely illustrative, and for example, the division of the units is only one type of division of logical functions, and there may be other divisions when actually implementing, for example, a plurality of units or components may be combined or may be integrated into another system, or some features may be omitted, or not implemented. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection of some service interfaces, devices or units, and may be an electrical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable memory. Based on such understanding, the technical solution of the present application may be substantially implemented or a part of or all or part of the technical solution contributing to the prior art may be embodied in the form of a software product stored in a memory, and including several instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method described in the embodiments of the present application. And the aforementioned memory comprises: various media capable of storing program codes, such as a usb disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic disk, or an optical disk.
Those skilled in the art will appreciate that all or part of the steps in the methods of the above embodiments may be implemented by a program, which is stored in a computer-readable memory, and the memory may include: flash disks, read-Only memories (ROMs), random Access Memories (RAMs), magnetic or optical disks, and the like.
The above description is only an exemplary embodiment of the present disclosure, and the scope of the present disclosure should not be limited thereby. That is, all equivalent changes and modifications made in accordance with the teachings of the present disclosure are intended to be included within the scope of the present disclosure. Embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
It will be understood by those skilled in the art that the foregoing is only an exemplary embodiment of the present invention, and is not intended to limit the invention to the particular forms disclosed, since various modifications, substitutions and improvements within the spirit and scope of the invention are possible and within the scope of the appended claims.
Claims (10)
1. An energy storage battery management system, comprising:
the upper computer comprises a first communication interface and a second communication interface;
the main control module comprises a first main control unit and a second main control unit which are in mutual redundant backup, and the first main control unit and the second main control unit are respectively connected with the first communication interface of the upper computer through respective third communication interfaces to form a first communication link and are connected with the second communication interface of the upper computer through respective fourth communication interfaces to form a second communication link;
the plurality of slave control modules are respectively connected with the fifth communication interface of the first master control unit and the sixth communication interface of the second master control unit through respective seventh communication interfaces and are accessed into the first communication link; the sixth communication interface of the second main control unit and the fifth communication interface of the first main control unit are connected through respective eighth communication interfaces, and the second communication link is accessed;
the plurality of battery modules are respectively connected with the corresponding slave control modules, so that the slave control modules collect the state information of the battery modules and feed the state information back to the master control module;
and the charging contactor and the discharging contactor are controlled to act by the main control module respectively, wherein the charging contactor is connected between the battery module and a power grid, and the discharging contactor is connected between the battery module and a load.
2. The energy storage battery management system according to claim 1, wherein each slave control module comprises a first slave control unit and a second slave control unit that are redundant with each other, and each slave control unit comprises the corresponding seventh communication interface and the eighth communication interface.
3. The energy storage battery management system according to claim 1, wherein the first communication interface, the second communication interface, the third communication interface, the fourth communication interface, the fifth communication interface, the sixth communication interface, the seventh communication interface, and the eighth communication interface all employ CAN communication interfaces.
4. The energy storage battery management system according to claim 1, wherein the charging contactor comprises a first charging contact unit and a second charging contact unit which are redundant and backup to each other, and are respectively connected with the first main control unit and the second main control unit; the discharging contactor comprises a first discharging contact unit and a second discharging contact unit which are redundant backup to each other and are respectively connected with the first main control unit and the second main control unit.
5. The energy storage battery management system of claim 1, wherein the charging contactor and the discharging contactor are connected to the grid and the load through a converter.
6. An energy storage battery management method applied to the energy storage battery management system of any one of claims 1 to 5, comprising:
the main control module acquires a control instruction of the upper computer, controls the power grid to charge the battery module when the charging contactor is closed according to the control instruction, and controls the load to discharge the battery module when the discharging contactor is closed; the first control unit and the second control unit of the master control module are connected with the first communication interface and the second communication interface of the upper computer through respective third communication interfaces and fourth communication interfaces to form a dual-communication link redundancy backup;
the slave control module acquires state information of a corresponding battery module and feeds the state information back to the master control module, and the master control module forwards the state information to the upper computer to form a control closed loop; the slave control module is connected with a fifth communication interface of the first master control unit and a sixth communication interface of the second master control unit through respective seventh communication interfaces, and is accessed to the first communication link; and connecting the sixth communication interface of the second master control unit and the fifth communication interface of the first master control unit through respective eighth communication interfaces, and accessing the second communication link to form a cross redundancy backup between the master control module and the slave control module.
7. The energy storage battery management method according to claim 6, wherein the obtaining of the state information of the corresponding battery module from the slave control module and the feedback of the state information to the master control module comprises:
and the first slave control unit and the second slave control unit of each slave control module which are in redundant backup with each other acquire the state information of the corresponding battery module, and the state information is fed back to the master control unit by the first slave control unit and the second slave control unit.
8. The energy storage battery management method according to claim 6, wherein the controlling, according to the control command, the power grid to charge the battery module when the charging contactor is closed and the controlling, when the discharging contactor is closed, the load to discharge the battery module comprise:
the first main control unit and the second main control unit are respectively connected with a first charging contact unit and a second charging contact unit of which the charging contactors are redundant and backup with each other, and a first discharging contact unit and a second discharging contact unit of which the discharging contactors are redundant and backup with each other, so as to send control commands to control the charging contactors and the discharging contactors to act.
9. An electronic device, comprising at least one processing unit and at least one memory unit, wherein the memory unit stores a computer program that, when executed by the processing unit, causes the processing unit to perform the steps of the method of any one of claims 6-8.
10. A computer-readable storage medium, in which a computer program executable by an access authentication device is stored, which computer program, when run on the access authentication device, causes the access authentication device to carry out the steps of the method of any one of claims 6 to 8.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210846256.9A CN115173514A (en) | 2022-07-19 | 2022-07-19 | Energy storage battery management system, method and application |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210846256.9A CN115173514A (en) | 2022-07-19 | 2022-07-19 | Energy storage battery management system, method and application |
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| CN115173514A true CN115173514A (en) | 2022-10-11 |
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| CN202210846256.9A Pending CN115173514A (en) | 2022-07-19 | 2022-07-19 | Energy storage battery management system, method and application |
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| Country | Link |
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| CN (1) | CN115173514A (en) |
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