CN115776149B - Flexible intelligent battery management system, method and device and electronic equipment - Google Patents
Flexible intelligent battery management system, method and device and electronic equipment Download PDFInfo
- Publication number
- CN115776149B CN115776149B CN202211418177.4A CN202211418177A CN115776149B CN 115776149 B CN115776149 B CN 115776149B CN 202211418177 A CN202211418177 A CN 202211418177A CN 115776149 B CN115776149 B CN 115776149B
- Authority
- CN
- China
- Prior art keywords
- management
- battery
- control unit
- module
- energy storage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 26
- 238000004146 energy storage Methods 0.000 claims abstract description 129
- 230000007774 longterm Effects 0.000 claims abstract description 8
- 238000007726 management method Methods 0.000 claims description 319
- 230000015654 memory Effects 0.000 claims description 27
- 238000003860 storage Methods 0.000 claims description 13
- 238000002955 isolation Methods 0.000 abstract description 8
- 230000008901 benefit Effects 0.000 description 11
- 230000000694 effects Effects 0.000 description 10
- 238000012544 monitoring process Methods 0.000 description 9
- 238000012983 electrochemical energy storage Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 7
- 238000005520 cutting process Methods 0.000 description 5
- 238000011156 evaluation Methods 0.000 description 5
- 230000006870 function Effects 0.000 description 5
- 238000011161 development Methods 0.000 description 4
- 238000003745 diagnosis Methods 0.000 description 4
- 238000007599 discharging Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000002035 prolonged effect Effects 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 238000004590 computer program Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 238000003491 array Methods 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000029087 digestion Effects 0.000 description 1
- 235000019800 disodium phosphate Nutrition 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000021715 photosynthesis, light harvesting Effects 0.000 description 1
- 238000007781 pre-processing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
-
- 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
Landscapes
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a flexible intelligent battery management system, a method, a device and electronic equipment, comprising: the energy storage battery integrated management and control system comprises an intelligent battery management system master control, at least one battery cluster management and control unit and a plurality of module management and control units, wherein the energy storage battery integrated management and control system supports a high-efficiency operation mode under the working condition of a new battery system of an energy storage power station and a long-service-life operation mode which is gradually changed into an old battery and echelon utilization scene after long-term operation. The intelligent battery management and control general control for different operation characteristics of a new battery system, an old battery energy storage system and a echelon utilization system is constructed, standardized modules and cluster management and control unit interfaces are realized, and the multi-level consistency management, electric quantity balance, fault isolation and inter-cluster balance working modes of the battery system, the clusters and the modules are flexibly switched by rapidly replacing the hardware of the modules and the cluster management and control units, so that the balance of high efficiency and long service life is realized.
Description
Technical Field
The invention relates to the technical field of battery management, in particular to a flexible intelligent battery management system, a flexible intelligent battery management method, a flexible intelligent battery management device and electronic equipment.
Background
Electrochemical energy storage is a key technology for supporting energy revolution, a large new energy foundation faces a complex application scene of wind-solar energy storage multi-mode integrated operation, and higher requirements are put forward on the control and operation of an energy storage power station. The main performance indexes such as efficiency, reliability, safety and the like of the electrochemical energy storage system are important to successful commercial deployment of the energy storage system. However, the current energy storage system has the problems of high total life cycle cost, short service life, poor reliability, high safety risk and the like, and particularly has the effect of the least factor of the Latin in the large-scale battery group formed by the unmatched relationship between the cell monomer difference and the battery grouping mode of the fixed series-parallel connection in the traditional energy storage architecture, namely the wooden barrel short plate effect, so that the cycle life, the safety, the reliability and the effective capacity of the electrochemical energy storage system, especially the large-scale electrochemical energy storage system, are greatly damaged. Meanwhile, the large data computing capacity and the control accuracy are difficult to realize the accurate management of the large-scale energy storage power station, so that the problems of low utilization rate, multiple potential safety hazards, irregular management, inefficient use, unexpected income and the like of the operational power station are caused, and the healthy development of the energy storage field is hindered.
The consistency management of the energy storage battery is the key of safe, efficient and long-service-life operation of the energy storage power station, and a great amount of research and application work is developed from the aspects of battery body technology, battery management system and consistency control of energy storage integrated environments in industry. However, since the energy storage industry is in the initial stage of explosive growth, the running time of the put-in energy storage power station is not too long, and the balance of high efficiency and long service life is realized on the premise of ensuring safety, so that the practical effect still remains to be verified. At present, in the aspect of a battery management system, a traditional secondary monitoring system design concept is generally based, a relatively single architecture and a technical scheme are adopted, a primary system in a battery cluster adopts a fixed serial-parallel structure among modules, the consistency of a battery core body is mainly treated through passive equalization of the battery core, the actual operation effect is often limited, and the service life of an energy storage power station cannot be effectively ensured; the system has the defects of complex system architecture, high initial construction cost, reduced energy conversion efficiency and the like by adopting a relatively complex battery switching control and electric quantity balancing scheme such as large-current active balancing among modules, dynamic switching of the modules, DC/DC and the like.
Disclosure of Invention
In view of the above, the embodiment of the invention provides a flexible intelligent battery management system, a method, a device and electronic equipment, which are used for solving the technical problems of poor actual operation effect of the system, short service life of an energy storage power station, complex system architecture, high initial construction cost and low energy conversion efficiency in the prior art.
The technical scheme provided by the invention is as follows:
In a first aspect, an embodiment of the present invention provides a flexible intelligent battery management system, including: the energy storage battery integrated management and control system comprises an intelligent battery management system master control, at least one battery cluster management and control unit and a plurality of module management and control units, wherein the energy storage battery integrated management and control system supports a high-efficiency operation mode under the working condition of a new battery system of an energy storage power station and a long-service-life operation mode of gradually shifting to an old battery and a echelon utilization scene after long-time operation, and each module management and control unit controls at least one battery module; the intelligent battery management system is used for determining an operation mode of the energy storage battery integrated management and control system according to the internal battery state information of the at least one battery module, and sending indication information of the operation mode to the module management and control unit, wherein the module management and control unit comprises a basic management and control unit and an advanced management and control unit; the module management and control unit is used for receiving the indication information and switching the basic management and control unit into the advanced management and control unit according to the working mode indicated in the indication information; the battery cluster management and control unit comprises a DC/DC converter, and is used for controlling the DC/DC converter to output a first voltage to the energy storage battery integrated management and control system under the condition that the module management and control unit is switched to the advanced management and control unit, so that at least one second voltage of at least one battery cluster in the energy storage battery integrated management and control system is matched with the first voltage.
With reference to the first aspect, in a possible implementation manner of the first aspect, the advanced management and control unit includes: and the module switching and bypass control unit is used for controlling the at least one battery module and outputting the at least one second voltage of the at least one battery module.
With reference to the first aspect, in another possible implementation manner of the first aspect, the cluster management unit further includes: and the switching control unit is used for performing switching control on at least one battery cluster in the energy storage battery integrated management and control system through a contactor when the module management and control unit is determined to be the basic management and control unit.
With reference to the first aspect, in a further possible implementation manner of the first aspect, after determining that the module control unit is the base control unit, the method further includes: before at least one battery cluster in the energy storage battery integrated management and control system operates in parallel, the intelligent battery management system is used for acquiring voltage differences among different battery clusters in a total control mode; and when the voltage difference exceeds a preset threshold range, the switching control unit performs charge and discharge pretreatment.
With reference to the first aspect, in a further possible implementation manner of the first aspect, the intelligent battery management system master control is further configured to perform fault diagnosis on the energy storage battery integrated management system.
In a second aspect, an embodiment of the present invention provides a flexible intelligent battery management method, which is used in the flexible intelligent battery management system according to the first aspect and any one of the first aspect of the embodiments of the present invention, where the flexible intelligent battery management method includes: the intelligent battery management system general control determines an operation mode of the energy storage battery integrated management and control system according to internal battery state information of at least one battery module in the energy storage battery integrated management and control system, and sends indication information of the operation mode to a module management and control unit, wherein the module management and control unit comprises a basic management and control unit and an advanced management and control unit; the module control unit switches the basic control unit into the advanced control unit according to the operation mode indicated in the indication information; and under the condition that the battery cluster management and control unit is determined to be switched into the advanced management and control unit in the module management and control unit, the DC/DC converter is controlled to output a first voltage to the energy storage battery integrated management and control system, so that at least one second voltage of at least one battery cluster in the energy storage battery integrated management and control system is matched with the first voltage.
With reference to the second aspect, in a possible implementation manner of the second aspect, the method further includes: the module switching and bypass control unit based on the power electronic switch in the advanced control unit controls the at least one battery module and outputs the at least one second voltage of the at least one battery module.
In a third aspect, an embodiment of the present invention provides a flexible intelligent battery management device, configured to be used in the flexible intelligent battery management system according to any one of the first aspect and the first aspect of the embodiment of the present invention, where the flexible intelligent battery management device includes: the intelligent battery management system comprises an intelligent battery management system, an intelligent battery management system management module and a module management control unit, wherein the intelligent battery management system management module is used for determining an operation mode of the intelligent battery management system according to internal battery state information of at least one battery module in the intelligent battery management system, and sending indication information of the operation mode to the module management control unit, and the module management control unit comprises a basic management control unit and an advanced management control unit; the switching module is used for switching the basic management and control unit into the advanced management and control unit according to the operation mode indicated in the indication information by the module management and control unit; and the control module is used for controlling the DC/DC converter to output a first voltage to the energy storage battery integrated management and control system under the condition that the battery cluster management and control unit is determined to be switched into the advanced management and control unit in the module management and control unit, so that at least one second voltage of at least one battery cluster in the energy storage battery integrated management and control system is matched with the first voltage.
In a fourth aspect, an embodiment of the present invention provides a computer readable storage medium, where computer instructions are stored, where the computer instructions are configured to cause the computer to perform the flexible intelligent battery management method according to any one of the second aspect and the second aspect of the embodiment of the present invention.
In a fifth aspect, an embodiment of the present invention provides an electronic device, including: the flexible intelligent battery management system comprises a memory and a processor, wherein the memory and the processor are in communication connection, the memory stores computer instructions, and the processor executes the computer instructions, so that the flexible intelligent battery management system according to the second aspect and any one of the second aspect of the embodiment of the invention is executed.
The technical scheme provided by the invention has the following effects:
The flexible intelligent battery management system provided by the embodiment of the invention is oriented to different working modes of an energy storage battery integrated management and control system, and supports dynamic switching control (tolerance difference) of a module and inter-cluster equalization under dynamic switching; by adding the DC/DC converter, the system has the characteristics of compatibility with battery clusters with different voltages and strong applicability, and can improve the charge and discharge capacity of the energy storage system; under unified scheduling of the energy storage battery integrated management and control system, the module management and control unit and the cluster management and control unit are cooperatively matched, so that quick cutting and recovery of modules with inconsistent SOC states are realized, and meanwhile, balance among clusters in a dynamic switching mode is ensured. According to the invention, the energy storage battery integrated management and control system is matched with the intelligent battery management and control system, so that the system is safe, efficient and long-service-life.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
Fig. 1 is a block diagram of a flexible intelligent battery management system according to an embodiment of the present invention;
FIG. 2 is a block diagram of a battery management system adapted for long life modes of operation of an electrochemical energy storage system according to an embodiment of the present invention;
FIG. 3 is a block diagram of a module control unit according to an embodiment of the present invention;
FIG. 4 is a diagram of system architecture and operational features provided in accordance with an embodiment of the present invention;
FIG. 5 is a flow chart of a flexible intelligent battery management method provided in accordance with an embodiment of the present invention;
Fig. 6 is a block diagram of a flexible intelligent battery management device according to an embodiment of the present invention;
FIG. 7 is a schematic diagram of a computer-readable storage medium provided according to an embodiment of the present invention;
fig. 8 is a schematic structural diagram of an electronic device according to an embodiment of the present invention.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The battery consistency management is a key element of safe, efficient and long-life operation of the electrochemical energy storage power station, the consistency of the battery is affected by a manufacturing process, an operation environment and the like, and the battery consistency is gradually reduced along with the increase of calendar time and accumulated cycle times. The conventional battery management technology still has defects in a scene of continuously reducing the consistency of applicable batteries, and the embodiment of the invention provides a flexible intelligent battery management system which is used for supporting flexible switching of high-efficiency and long-service-life operation modes on the basis of realizing high-precision battery state acquisition, intelligent charge and discharge control and battery state evaluation analysis and is oriented to the characteristics of an energy storage system in different operation stages of a new system, an old system, a gradient utilization system and the like, so that the operation life of the system is prolonged.
As shown in fig. 1, the flexible intelligent battery management system 1 includes:
the energy storage battery integrated management and control system 11 comprises an intelligent battery management system master control 111, at least one battery cluster management and control unit 112 and a plurality of module management and control units 113.
The energy storage battery integrated management and control system 11 system supports a high-efficiency operation mode under the working condition of a new battery system of the energy storage power station and a long-service-life operation mode of gradually shifting to an old battery and a echelon utilization scene after long-time operation;
Further, each battery cluster management unit 112 may control at least one battery cluster in the energy storage battery integrated management system 11; each module management and control unit 113 may control at least one battery module;
wherein each battery cluster comprises at least one battery module.
The intelligent battery management system master controller 111 is configured to determine an operation mode of the energy storage battery integrated management system 11 according to the internal battery state information of the at least one battery module 1141, and send indication information of the operation mode to the module management unit 113.
The module management and control unit 113 is a module for monitoring, evaluating state, balancing electric quantity and controlling the battery module 1141 and the battery cells therein, and includes a base management and control unit 1131 and an advanced management and control unit 1132.
Specifically, the intelligent battery management system master control 111 is a central system, and can monitor the state information of the battery cells and the battery modules in real time, and evaluate the operation state of the energy storage battery integrated management and control system 11 according to the state information.
When the consistency of the batteries in the battery module is good and the occurrence frequency of the faults of the battery module is low, determining the operation mode of the energy storage battery integrated management and control system 11 to be a high-efficiency operation mode under the working condition of a new battery system; when the health degree of part of the battery modules is lower, the operation mode of the energy storage battery integrated management and control system 11 is determined to be a long-service-life operation mode of gradually shifting to the old battery and echelon utilization scene after long-time operation.
The module control unit 113 is configured to receive the indication information, and switch the base control unit 1131 to the advanced control unit 1132 according to the operation mode indicated in the indication information.
The basic management and control unit 1131 and the advanced management and control unit 1132 all adopt standard fast plug-in interfaces and general software protocols, so that part or all of units in the system can be replaced rapidly.
Specifically, the basic management and control unit 1131 supports monitoring the voltage and the temperature of the battery module and the battery cells in the battery module by adopting a standard quick-plug interface, and supports realizing the electric quantity balance in the module by adopting an energy dissipation type small-current passive or active balance mode of energy transfer between the battery cells, and mechanical electric direct connection is realized between the modules by quick-plug;
Further, when the operation mode of the energy storage battery integrated management and control system 11 is a high efficiency operation mode under the working condition of the new battery system, the battery module is controlled by the basic management and control unit 1131.
When the operation mode of the energy storage battery integrated management and control system 11 is a long-life operation mode of gradually shifting to an old battery and echelon utilization scene after long-term operation, the standard fast plug-in interface is utilized to rapidly switch the basic management and control unit 1131 into the advanced management and control unit 1132, and on the basis of supporting the functions of the basic management and control unit 1131, the advanced management and control unit 1132 is utilized to realize rapid switching control of the battery module.
The battery cluster management unit 112 includes a DC/DC converter 1121.
The battery cluster management unit 112 is configured to control the DC/DC converter 1121 to output a first voltage to the energy storage battery integrated management and control system 11 when it is determined that the module management and control unit 113 is switched to the advanced management and control unit 1132, so that at least one second voltage of at least one battery cluster 114 in the energy storage battery integrated management and control system 11 is matched with the first voltage.
The DC/DC converter is used for carrying out bidirectional conversion on the direct current voltage with changeable modules and the fixed voltage on the direct current bus between clusters.
Specifically, after the module control unit 113 is switched to the advanced control unit 1132, the advanced control unit 1132 performs fast switching control on the battery module, including:
in a normal charge and discharge working state, all the battery modules are normally put into operation; when the temperature of a certain battery module exceeds the standard, cutting out the battery module until the temperature is recovered to be normal; in a charging state, if the voltage or the SOC of a certain battery module is higher than a certain threshold (the battery module is charged to an upper limit), the main connection of the battery module is disconnected, the battery module is switched to a bypass mode, and other modules work normally; in a discharging state, when the voltage or the SOC of a certain battery module is higher than a certain threshold (the battery module is discharged to a lower limit), the main connection of the battery module is disconnected, the battery module is switched to a bypass mode, and other modules work normally; when a certain module fails, the module is cut out directly.
Further, the voltage difference between the battery clusters is too large due to the cutting operation of some or some of the modules in the middle of the clusters, and at this time, the DC/DC converter 1121 is added to the battery cluster management and control unit 112 to output the first voltage to the energy storage battery integrated management and control system 11, so as to realize the voltage balance inside the battery clusters or the voltage balance between different battery clusters, avoid the occurrence of the inter-cluster circulation, and ensure that each battery cluster can be fully charged or discharged. I.e. controlling the second voltage (the voltage corresponding to the battery cluster after the battery module is cut) to match the first voltage
Furthermore, by adding the DC/DC converter, the battery clusters with different voltages can be compatible, the applicability is high, the charge and discharge capacity of the energy storage battery integrated management and control system can be improved, and the energy storage battery integrated management and control system is further suitable for safe and long-service-life operation requirements in the middle and later stages of a power station.
The flexible intelligent battery management system provided by the embodiment of the invention constructs intelligent battery management and control overall control for different operation characteristics of a newly built battery system, an old battery energy storage system and a echelon utilization system, standardized module and cluster management and control unit interfaces, and realizes the balance of high efficiency and long service life by rapidly replacing module and cluster management and control unit hardware, flexibly switching multi-level consistency management, electric quantity balance, fault isolation and inter-cluster balance working modes of the battery system, the cluster and the module. Aiming at the working condition of good battery consistency of a new battery system, the system adopts a module foundation management and control unit to support the fixed serial-parallel connection of the module in a cluster, the active and passive electric quantity of the battery cell is balanced, the fault of the cluster is isolated, and the system operates in a high-efficiency working mode; the system is flexibly switched to a long-life operation mode by aiming at the working conditions that the consistency of the battery is continuously reduced and the failure frequency of the module is increased when the system runs for a long time until the system shifts to a echelon utilization stage, and a module advanced management and control unit based on a power electronic switch is adopted to realize module dynamic switching control, module grade failure isolation and module electric quantity balancing under dynamic switching, inter-cluster voltage balancing and circulation control based on DC/DC, so that the effective charge and discharge capacity is improved, and the service life of the system is prolonged.
As an alternative implementation of the embodiment of the present invention, the advanced management and control unit 1132 includes: the power electronic switch-based module switching and bypass control unit 11321 is configured to control the at least one battery module 1141 and output the at least one second voltage of the at least one battery module 1141.
Specifically, the advanced control unit 1132 adds a module switching and bypass control unit 11321 based on a power electronic switch on the basis of the basic control unit 1131 to realize a rapid switching control function on the battery module.
As an alternative implementation manner of the embodiment of the present invention, the battery cluster management unit 112 further includes:
And the switching control unit 1122 is configured to perform switching control on at least one battery cluster 114 in the integrated energy storage battery management and control system 11 through a contactor when the module management and control unit 113 is determined to be the base management and control unit 1131.
Further, before at least one battery cluster in the energy storage battery integrated management and control system 11 operates in parallel, the intelligent battery management system master control 111 acquires a voltage difference between different battery clusters; when the voltage difference exceeds the preset threshold range, the switching control unit 1122 performs charge and discharge preprocessing.
Specifically, the intelligent battery management system master control 111 may also monitor state information of the battery cluster, such as voltage, temperature, etc., in real time;
Further, the switching control unit 1122 is configured to implement switching control of the battery clusters by means of contactors, and before the parallel operation of the multiple clusters, the system detects the voltage of each battery cluster, performs charge and discharge pretreatment when the voltage difference between the battery clusters exceeds a certain range, and performs parallel operation when the conditions are satisfied, thereby achieving high operation efficiency.
As an alternative implementation manner of the embodiment of the present invention, the intelligent battery management system master controller 111 is further configured to perform fault diagnosis on the energy storage battery integrated management and control system 11.
Specifically, the intelligent battery management system master control 111 may also perform fault diagnosis on the energy storage battery integrated management and control system 11 through real-time monitoring of state information of battery cells, battery modules and battery clusters, and issue control and isolation instructions and the like.
The embodiment of the invention is oriented to different working modes of the energy storage battery integrated management and control system, and supports the dynamic switching control (tolerance difference) of the module and the inter-cluster equalization under the dynamic switching; by adding the DC/DC converter, the system has the characteristics of compatibility with battery clusters with different voltages and strong applicability, and can improve the charge and discharge capacity of the energy storage system; under unified scheduling of the energy storage battery integrated management and control system, the module management and control unit and the cluster management and control unit are cooperatively matched, so that quick cutting and recovery of modules with inconsistent SOC states are realized, and meanwhile, balance among clusters in a dynamic switching mode is ensured. According to the invention, the energy storage battery integrated management and control system is matched with the intelligent battery management and control system, so that the system is safe, efficient and long-service-life.
The embodiment of the invention is based on the current situation of technical development and application in the energy storage industry, and provides an energy storage battery management system framework taking account of new and old battery modules, which realizes a comprehensive solution of high efficiency and long service life of an energy storage system on the premise of ensuring safety without changing the physical structure of the system, and reduces the initial construction cost and full life cycle electricity cost of engineering:
(1) By constructing the intelligent flexible battery management system capable of rapidly switching the operation conditions, the discrete access and asynchronous control of the energy storage battery are supported, the flexible protection and control of the short-circuit battery cells are realized, the overdose rate of the battery and the system cost are reduced, the thermal runaway fire hazard probability of the battery caused by overcharging and overdischarging is avoided, and the cycle times and the service life of the energy storage system are improved. For a new battery system, the means of fixed serial-parallel connection, active and passive equalization of electric quantity of the battery cells and the like among clusters are adopted to realize low-cost and high-efficiency operation; the control unit of the system can be replaced locally or integrally in the middle and later period of the operation of the power station, the dynamic switching and inter-cluster balancing of the module are supported, the mode of the mixed use and echelon utilization of the new and old batteries can be switched to rapidly, different grading protection and isolation strategies are adopted, the operation life of the energy storage system can be prolonged remarkably, the average electricity cost of the energy storage power station is further reduced, and the economic benefit is improved.
(2) The characteristic that the battery continuously ages along with long-term operation of the energy storage system and the inconsistency is continuously expanded is fully considered, through the standardized, modularized and replaceable design, the large inconsistency of the battery occurs at the later stage of the energy storage power station, when the normal operation of the energy storage power station is influenced, the basic module management and control units of part of battery modules or all the battery modules are quickly replaced by the advanced module management and control units on the premise that the whole framework of the energy storage container system is not greatly adjusted, the quick switching and control of the modules are realized under the unified scheduling of the intelligent energy storage battery integrated management and control system, the safety of the modules is ensured, the available capacity of the energy storage power station is fully excavated, and the operation life of the energy storage system is prolonged.
(3) The method provides a new way for long-life operation of the energy storage battery, and provides an expansion space for future technical development under the condition of effectively controlling initial investment, thereby realizing balance of short-term initial investment and long-term benefit guarantee. On the basis of ensuring normal operation for 5-8 years without increasing initial investment, the method carries out proper upgrading and reconstruction according to the requirement through reserved technical upgrading space, and continues to operate for more than 5 years, thereby bringing long-term value.
Furthermore, the embodiment of the invention carries out collaborative optimization control on a future large-scale energy storage system, realizes the utilization of high-proportion renewable energy sources, fully exerts the technical advantages of advanced electrochemical energy storage, realizes the optimal configuration and operation of energy storage, ensures the safe and stable operation of a power grid, and supports the grid connection and the digestion of the large-scale renewable energy sources. The project is expected to achieve innovative achievements with completely independent intellectual property rights, and the whole technology is expected to reach the international advanced level. The project expects the economic benefit and the social benefit to be obtained as follows:
(1) Economic benefit
(11) Has higher effective capacity and effectively improves economic benefit
The short plate effect of the traditional energy storage BMS scheme is effectively overcome, and the effective capacity of the system running for a long time can be remarkably improved. With the use of the energy storage system, the short plate effect brought by the consistency of the battery is gradually enlarged, the advantages of the project are more obvious, the average effective capacity can be expected to be improved by more than 15% in the service life of the battery, the thermal runaway risk is reduced by 20%, the operation and maintenance cost is reduced by 20%, the problems of accurate control and efficient management of the energy storage system are effectively solved, and the large-scale and lean development of the energy storage power station is further promoted.
(2) Has longer service life and reduces the replacement cost of the battery
The capacity retention rate of the flexible intelligent battery management system is always higher than that of a traditional BMS energy storage scheme, the battery can achieve longer cycle life, the battery with weaker state can continue to work, the fault battery can be directly isolated on line, the number and times of battery replacement can be obviously reduced in the long term, and further future operation and maintenance cost and later investment are reduced.
(3) Greatly improves the energy storage safety and saves the cost of continuous operation and inspection
The energy storage battery management technology which is suitable for new and old batteries and has high efficiency and long service life and the functions of online detection and automatic isolation of the fault battery module are adopted, so that the intrinsic safety challenges of the energy storage system caused by the electrochemical differences of the batteries under different power output scenes are perfectly met, and the faults of the batteries are prevented. The remote online battery intrinsic safety risk unmanned real-time handling and controlling device can be used for virtually avoiding dependence on manual operation of a boarding station, and particularly in a large-scale energy storage application scene, the operation and maintenance cost can be directly saved by 30% -50%.
(2) Social benefits
Based on the operation characteristics of the battery in different periods, the technical scheme advantages of different energy storage power station systems are skillfully combined, and the method and the technology essentially overcome the problems of the battery body by utilizing the moore's law, and give consideration to the requirements of initial cost control, long-term operation efficiency and long-life safe operation of the energy storage system. Meanwhile, the system charging and discharging efficiency and service life problems caused by the short plate effect of the battery are fundamentally eliminated by the energy storage battery management technology which is suitable for new and old batteries and has high efficiency and long service life, and the available capacity and service life of the battery system are greatly improved, so that the utilization efficiency of the potential value of the battery is improved, the replacement frequency of the battery in an energy storage power station is reduced, and the direct influence of battery disposal on the natural environment is reduced.
In an embodiment, as shown in fig. 2, a battery management system suitable for long-life operation modes of an electrochemical energy storage system is provided, and the battery management system is suitable for an integrated architecture of an energy storage system with multiple clusters connected in parallel on a direct current side and in series in a cluster, and supports the early efficient operation mode of a newly built power station and the long-life operation mode of a subsequent old system and flexible switching of the two modes on the premise of ensuring safety.
The energy storage battery integrated management and control system realizes the state acquisition of the battery cells, the modules and the battery clusters in the energy storage system, and the functions of charge and discharge control, electric quantity balance control, environment monitoring, safety diagnosis and early warning. Through the cooperation with intelligent battery management system master control, cluster management and control unit, module management and control unit, realize system safety, high efficiency and long-life operation.
Specifically, as shown in fig. 3, under unified scheduling of the integrated management and control system of the energy storage battery, the module management and control unit cooperates with the cluster management and control unit to realize rapid cutting and recovery of modules with inconsistent SOC states, and meanwhile, balance among clusters in a dynamic switching mode is ensured. The system can tolerate unbalanced voltage among clusters in a certain proportion, and when the number of the cut modules reaches a certain number or the cluster electric quantity is full in a charging state or the cluster electric quantity is empty in a discharging state, the battery clusters can be completely cut out through the cluster management and control unit, so that the safety of the system is ensured.
Further, as shown in fig. 4, the system is based on a unified intelligent battery management system platform, and different technical solutions are respectively provided for new and old systems in aspects of consistency management methods, fault isolation strategies and the like, so that the operation efficiency and the service life of the system are improved on the premise of ensuring safety.
In the aspects of battery consistency management and fault isolation, aiming at the characteristics of better consistency of the battery of the new power station and low occurrence frequency of module faults, an active or passive balancing means is adopted to balance the consistency problem of the sporadic batteries, so that the effective capacity of the modules and the battery clusters is ensured; for old systems or echelon utilization systems running for a long time, the module with lower part health degree can be rapidly switched into an advanced module management and control unit with switching control, so that dynamic switching of the module is realized, the module which reaches the upper voltage limit first is switched out in a charging state, the module which reaches the lower voltage limit first is switched out in a discharging state, rapid bypass switching out is realized in a single module failure state, other battery modules are guaranteed to continue to work, and the system capacity can be effectively exerted.
The embodiment of the invention also provides a flexible intelligent battery management method which is used for the flexible intelligent battery management system 1 provided by the embodiment of the invention; as shown in fig. 5, the method comprises the steps of:
Step 501: the intelligent battery management system general control determines an operation mode of the energy storage battery integrated management and control system according to internal battery state information of at least one battery module in the energy storage battery integrated management and control system, and sends indication information of the operation mode to a module management and control unit, wherein the module management and control unit comprises a basic management and control unit and an advanced management and control unit.
The specific implementation process refers to the specific description of the energy storage battery integrated management and control system 11 and the intelligent battery management system general control 11 in the flexible intelligent battery management system 1, and will not be repeated here.
Step 502: and the module management and control unit switches the basic management and control unit into the advanced management and control unit according to the operation mode indicated in the indication information.
The specific implementation process refers to the specific description of the module management and control unit 113, the base management and control unit 1131, and the advanced management and control unit 1132 in the flexible intelligent battery management system 1, and will not be repeated herein.
Step 503: and under the condition that the battery cluster management and control unit is determined to be switched into the advanced management and control unit in the module management and control unit, the DC/DC converter is controlled to output a first voltage to the energy storage battery integrated management and control system, so that at least one second voltage of at least one battery cluster in the energy storage battery integrated management and control system is matched with the first voltage.
The specific implementation process refers to the specific description of the battery cluster management unit 112 and the DC/DC converter 1121 in the flexible intelligent battery management system 1, and will not be repeated herein.
According to the flexible intelligent battery management method provided by the embodiment of the invention, the technical architecture of the Internet of things and the standardized interfaces of software and hardware are adopted, so that the battery state high-precision acquisition, intelligent state evaluation and grading safety early warning under the full life cycle are realized, on the basis, the direct-connection topological structure is applied at the initial operation stage of the energy storage power station, and the module management and control unit realizes a low-cost and high-stability battery cell level electric quantity balancing scheme on the basis of comprehensively monitoring the voltage, the temperature, the SOC and the SOH states of the battery, so that the initial input of the power station and the system complexity can be controlled, and the stability and the high charge and discharge efficiency of the energy storage system are ensured. Along with the long-time operation of the power station, the inconsistency of the battery module is increased, through continuous monitoring and evaluation of the system and the battery module, when the inconsistency reaches a certain threshold value to affect safety and efficiency exertion, an electric quantity balancing method cannot meet consistency management requirements or needs to be shifted to a echelon utilization state, the original module management and control unit can be quickly replaced through a standard quick plug-in interface, the original basic management and control unit is replaced by an advanced management and control unit with DC/DC and flexible switching control, consistency difference among energy storage batteries is tolerated, and the system can be quickly switched to work in a long-life mode.
As an optional implementation manner of the embodiment of the present invention, the method further includes: the module switching and bypass control unit based on the power electronic switch in the advanced control unit controls the at least one battery module and outputs the at least one second voltage of the at least one battery module.
The specific implementation process refers to the specific description of the power electronic switch-based module switching and bypass control unit 11321 in the flexible intelligent battery management system 1, and will not be repeated here.
The embodiment of the invention also provides a flexible intelligent battery management device which is used for the flexible intelligent battery management system 1 provided by the embodiment of the invention; as shown in fig. 6, the apparatus includes:
The acquiring module 601 is configured to determine an operation mode of the integrated management and control system of the energy storage battery according to internal battery state information of the at least one battery module in the integrated management and control system of the energy storage battery, and send indication information of the operation mode to a module management and control unit, where the module management and control unit includes a basic management and control unit and an advanced management and control unit; for details, see the description of step 501 in the method embodiment described above.
The switching module 602 is configured to switch the basic management and control unit to the advanced management and control unit according to the operation mode indicated in the indication information by the module management and control unit; for details, see the description of step 502 in the method embodiment described above.
The control module 603 is configured to control the DC/DC converter to output a first voltage to the energy storage battery integrated management and control system when the battery cluster management and control unit determines that the module management and control unit is switched to the advanced management and control unit, so that at least one second voltage of at least one battery cluster in the energy storage battery integrated management and control system is matched with the first voltage; for details, see the description of step 503 in the method embodiment above.
The flexible intelligent battery management device provided by the embodiment of the invention adopts an Internet of things technical architecture and a software and hardware standardized interface to realize high-precision acquisition, intelligent state evaluation and grading safety pre-warning of the battery state under the full life cycle, on the basis, a direct-connection topological structure is applied at the initial operation stage of an energy storage power station, and a module management and control unit realizes a low-cost and high-stability battery cell level electric quantity balancing scheme on the basis of comprehensively monitoring the voltage, the temperature, the SOC and the SOH states of the battery, so that the initial input of the power station and the system complexity can be controlled, and the stability and the high charge and discharge efficiency of the energy storage system are ensured. Along with the long-time operation of the power station, the inconsistency of the battery module is increased, through continuous monitoring and evaluation of the system and the battery module, when the inconsistency reaches a certain threshold value to affect safety and efficiency exertion, an electric quantity balancing method cannot meet consistency management requirements or needs to be shifted to a echelon utilization state, the original module management and control unit can be quickly replaced through a standard quick plug-in interface, the original basic management and control unit is replaced by an advanced management and control unit with DC/DC and flexible switching control, consistency difference among energy storage batteries is tolerated, and the system can be quickly switched to work in a long-life mode.
As an alternative implementation manner of the embodiment of the present invention, the apparatus further includes: and the first control module is used for controlling the at least one battery module by the module switching and bypass control unit based on the power electronic switch in the advanced control unit and outputting the at least one second voltage of the at least one battery module.
The functional description of the flexible intelligent battery management device provided by the embodiment of the invention refers to the description of the flexible intelligent battery management method in the embodiment.
The embodiment of the present invention further provides a storage medium, as shown in fig. 7, on which a computer program 701 is stored, which when executed by a processor, implements the steps of the flexible intelligent battery management method in the above embodiment. The storage medium may be a magnetic disk, an optical disc, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a Flash Memory (Flash Memory), a hard disk (HARD DISK DRIVE, HDD), or a Solid state disk (Solid-state-STATE DRIVE, SSD); the storage medium may also comprise a combination of memories of the kind described above.
It will be appreciated by those skilled in the art that implementing all or part of the above-described embodiment method may be implemented by a computer program to instruct related hardware, where the program may be stored in a computer readable storage medium, and the program may include the above-described embodiment method when executed. Wherein the storage medium may be a magnetic disk, an optical disk, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a Flash Memory (Flash Memory), a hard disk (HARD DISK DRIVE, HDD), a Solid state disk (Solid-state-STATE DRIVE, SSD), or the like; the storage medium may also comprise a combination of memories of the kind described above.
The embodiment of the present invention further provides an electronic device, as shown in fig. 8, which may include a processor 81 and a memory 82, where the processor 81 and the memory 82 may be connected by a bus or other means, and in fig. 8, the connection is exemplified by a bus.
The processor 81 may be a central processing unit (Central Processing Unit, CPU). The Processor 81 may also be other general purpose processors, digital signal processors (DIGITAL SIGNAL processors, DSPs), application SPECIFIC INTEGRATED Circuits (ASICs), field-Programmable gate arrays (Field-Programmable GATE ARRAY, FPGA) or other Programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or combinations thereof.
The memory 82, as a non-transitory computer readable storage medium, may be used to store non-transitory software programs, non-transitory computer-executable programs, and modules, such as corresponding program instructions/modules, in embodiments of the present invention. The processor 81 executes various functional applications of the processor and data processing, i.e., implements the flexible intelligent battery management method in the above-described method embodiments, by running non-transitory software programs, instructions, and modules stored in the memory 82.
The memory 82 may include a memory program area that may store an operating device, an application program required for at least one function, and a memory data area; the storage data area may store data created by the processor 81, etc. In addition, the memory 82 may include high-speed random access memory, and may also include non-transitory memory, such as at least one magnetic disk storage device, flash memory device, or other non-transitory solid state storage device. In some embodiments, memory 82 may optionally include memory located remotely from processor 81, such remote memory being connectable to processor 81 through a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
The one or more modules are stored in the memory 82, which when executed by the processor 81, performs the flexible intelligent battery management method in the embodiment shown in fig. 5.
The details of the electronic device may be understood correspondingly with respect to the corresponding relevant descriptions and effects in the embodiment shown in fig. 5, which are not repeated herein.
Although embodiments of the present invention have been described in connection with the accompanying drawings, various modifications and variations may be made by those skilled in the art without departing from the spirit and scope of the invention, and such modifications and variations fall within the scope of the invention as defined by the appended claims.
Claims (10)
1. A flexible intelligent battery management system, the system comprising:
The energy storage battery integrated management and control system comprises an intelligent battery management system master control, at least one battery cluster management and control unit and a plurality of module management and control units, wherein the energy storage battery integrated management and control system supports a high-efficiency operation mode under the working condition of a new battery system of an energy storage power station and a long-service-life operation mode of gradually shifting to an old battery and a echelon utilization scene after long-term operation, the battery cluster management and control unit is used for controlling at least one battery cluster in the energy storage battery integrated management and control system, the module management and control unit is used for controlling at least one battery module in the energy storage battery integrated management and control system, and each battery cluster comprises at least one battery module;
The intelligent battery management system is used for determining an operation mode of the energy storage battery integrated management and control system according to the internal battery state information of the at least one battery module, and sending indication information of the operation mode to the module management and control unit, wherein the module management and control unit comprises a basic management and control unit and an advanced management and control unit;
The module management and control unit is used for receiving the indication information and switching the basic management and control unit into the advanced management and control unit according to the working mode indicated in the indication information;
The battery cluster management and control unit comprises a DC/DC converter, and is used for controlling the DC/DC converter to output a first voltage to the energy storage battery integrated management and control system under the condition that the module management and control unit is switched into the advanced management and control unit, so that at least one second voltage of at least one battery cluster in the energy storage battery integrated management and control system is matched with the first voltage, and the second voltage is the voltage of the corresponding battery cluster which is output by the energy storage battery integrated management and control system after the battery module is cut off.
2. The system of claim 1, wherein the advanced management and control unit comprises:
And the module switching and bypass control unit is used for controlling the at least one battery module and outputting the at least one second voltage of the at least one battery module.
3. The system of claim 1, wherein the cluster management unit further comprises:
And the switching control unit is used for performing switching control on at least one battery cluster in the energy storage battery integrated management and control system through a contactor when the module management and control unit is determined to be the basic management and control unit.
4. The system of claim 3, further comprising, after determining that the module administration unit is the base administration unit:
Before at least one battery cluster in the energy storage battery integrated management and control system operates in parallel, the intelligent battery management system is used for acquiring voltage differences among different battery clusters in a total control mode;
and when the voltage difference exceeds a preset threshold range, the switching control unit performs charge and discharge pretreatment.
5. The system of claim 1, wherein the intelligent battery management system master control is further configured to perform fault diagnostics on the energy storage battery integrated management system.
6. A flexible intelligent battery management method for a flexible intelligent battery management system as recited in any of claims 1-5, the method comprising:
The intelligent battery management system general control determines an operation mode of the energy storage battery integrated management and control system according to internal battery state information of at least one battery module in the energy storage battery integrated management and control system, and sends indication information of the operation mode to a module management and control unit, wherein the module management and control unit comprises a basic management and control unit and an advanced management and control unit;
the module control unit switches the basic control unit into the advanced control unit according to the operation mode indicated in the indication information;
And under the condition that the battery cluster management and control unit is switched into the advanced management and control unit in the module management and control unit, the DC/DC converter is controlled to output a first voltage to the energy storage battery integrated management and control system, so that at least one second voltage of at least one battery cluster in the energy storage battery integrated management and control system is matched with the first voltage, and the second voltage is the voltage of the corresponding battery cluster which is output by controlling the battery module through the advanced management and control unit after the battery module is cut off.
7. The method of claim 6, wherein the method further comprises:
The module switching and bypass control unit based on the power electronic switch in the advanced control unit controls the at least one battery module and outputs the at least one second voltage of the at least one battery module.
8. A flexible intelligent battery management apparatus for use in a flexible intelligent battery management system as recited in any of claims 1-5, the apparatus comprising:
The intelligent battery management system comprises an intelligent battery management system, an intelligent battery management system management module and a module management control unit, wherein the intelligent battery management system management module is used for determining an operation mode of the intelligent battery management system according to internal battery state information of at least one battery module in the intelligent battery management system, and sending indication information of the operation mode to the module management control unit, and the module management control unit comprises a basic management control unit and an advanced management control unit;
The switching module is used for switching the basic management and control unit into the advanced management and control unit according to the operation mode indicated in the indication information by the module management and control unit;
And the control module is used for controlling the DC/DC converter to output a first voltage to the energy storage battery integrated management and control system under the condition that the battery cluster management and control unit is determined to be switched into the advanced management and control unit in the module management and control unit, so that at least one second voltage of at least one battery cluster in the energy storage battery integrated management and control system is matched with the first voltage, and the second voltage is the voltage of the corresponding battery cluster which is output by controlling the battery module through the advanced management and control unit after the battery module is cut off.
9. A computer-readable storage medium storing computer instructions for causing the computer to perform the flexible intelligent battery management method of claim 6 or 7.
10. An electronic device, comprising: a memory and a processor, said memory and said processor being communicatively coupled to each other, said memory storing computer instructions, said processor executing said computer instructions to perform the flexible intelligent battery management method of claim 6 or 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211418177.4A CN115776149B (en) | 2022-11-14 | 2022-11-14 | Flexible intelligent battery management system, method and device and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211418177.4A CN115776149B (en) | 2022-11-14 | 2022-11-14 | Flexible intelligent battery management system, method and device and electronic equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115776149A CN115776149A (en) | 2023-03-10 |
| CN115776149B true CN115776149B (en) | 2024-10-29 |
Family
ID=85389012
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211418177.4A Active CN115776149B (en) | 2022-11-14 | 2022-11-14 | Flexible intelligent battery management system, method and device and electronic equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115776149B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118508579B (en) * | 2024-07-22 | 2024-10-01 | 浙江浙能技术研究院有限公司 | Electrochemical energy storage system cluster-level balance control method considering battery state feedback |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111029666A (en) * | 2019-11-01 | 2020-04-17 | 彭建 | Modularized active equalization battery management system and management method thereof |
| CN113285130A (en) * | 2021-06-25 | 2021-08-20 | 中国华能集团清洁能源技术研究院有限公司 | Rechargeable distributed control battery system and working method thereof |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20160248125A1 (en) * | 2015-02-19 | 2016-08-25 | Microsoft Technology Licensing, Llc | Heterogeneous Battery Cell Switching |
| CN212627257U (en) * | 2020-08-04 | 2021-02-26 | 中国华能集团清洁能源技术研究院有限公司 | String type two-stage conversion battery energy storage system comprising pre-diagnosis module |
| CN212542532U (en) * | 2020-08-04 | 2021-02-12 | 中国华能集团清洁能源技术研究院有限公司 | Multi-branch electrochemical energy storage system with battery core diagnosis function |
| CN114944682A (en) * | 2022-04-23 | 2022-08-26 | 华北电力大学（保定） | Double-layer power distribution method of double-battery-pack energy storage system based on balance control |
-
2022
- 2022-11-14 CN CN202211418177.4A patent/CN115776149B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111029666A (en) * | 2019-11-01 | 2020-04-17 | 彭建 | Modularized active equalization battery management system and management method thereof |
| CN113285130A (en) * | 2021-06-25 | 2021-08-20 | 中国华能集团清洁能源技术研究院有限公司 | Rechargeable distributed control battery system and working method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115776149A (en) | 2023-03-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107219470B (en) | On-line checking discharge device and method for storage battery pack | |
| CN202474990U (en) | Non-circulating-current battery pack device | |
| WO2023184700A1 (en) | Battery system charging and discharging control method based on dynamic reconfigurable battery network | |
| CN109038712B (en) | Liquid metal battery pack balance control method and fault-tolerant system | |
| CN103560548A (en) | Novel battery pack, battery pack connecting method and battery pack charge and discharge management method | |
| CN108336780B (en) | Control method and system for gradient utilization of battery pack | |
| CN104157918A (en) | Method and device for performing redundant reassembling on storage batteries | |
| CN102222949A (en) | Device and method for managing batteries | |
| CN205484533U (en) | Battery voltage monitored control system | |
| CN109917302B (en) | Novel storage battery pack nuclear capacity testing equipment and testing method thereof | |
| CN111245060A (en) | Battery pack parallel operation charging and discharging control system and method based on controllable one-way conduction circuit | |
| CN104391253A (en) | Method for monitoring statuses of storage batteries of transformer substation by using FPGA (field-programmable gate array) | |
| CN103986205B (en) | 16 series lithium battery group multi-mode balance control methods of dynamic adaptation | |
| CN104965178A (en) | Lithium battery management system | |
| CN104167800A (en) | Lithium battery management system and method capable of expanding communication standby power supply | |
| CN115776149B (en) | Flexible intelligent battery management system, method and device and electronic equipment | |
| CN111106643A (en) | 48V communication power supply system and online discharge control method of storage battery thereof | |
| CN203747465U (en) | Battery equalization charging device based on ZigBee wireless network | |
| CN110854954A (en) | Intelligent scheduling system and scheduling method for battery cluster of energy storage system | |
| CN209534757U (en) | A kind of electric automobile power battery system | |
| CN204481504U (en) | The system that a kind of battery pack parallel connection uses | |
| CN202906507U (en) | Distributed cell power supply device and method thereof | |
| CN221282873U (en) | New and old lithium battery package can match energy storage system who mixes and use | |
| CN204011597U (en) | A kind of device of storage battery redundancy reprovision group | |
| CN204696782U (en) | The double power-supply system of a kind of UPS and UPS equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant |