CN120073966B - Main control battery management unit and battery management method - Google Patents
Main control battery management unit and battery management methodInfo
- Publication number
- CN120073966B CN120073966B CN202510543933.3A CN202510543933A CN120073966B CN 120073966 B CN120073966 B CN 120073966B CN 202510543933 A CN202510543933 A CN 202510543933A CN 120073966 B CN120073966 B CN 120073966B
- Authority
- CN
- China
- Prior art keywords
- adjustment
- battery
- energy storage
- different
- scheme
- 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
Classifications
-
- 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
- H02J7/0014—Circuits for equalisation of charge between batteries
-
- 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
- H01M10/4207—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells for several batteries or cells simultaneously or sequentially
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
- H02J7/0048—Detection of remaining charge capacity or state of charge [SOC]
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/007—Regulation of charging or discharging current or voltage
- H02J7/00712—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters
-
- 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
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
本发明提供一种主控电池管理单元以及电池管理方法，属于电力系统技术领域，具体包括：以电池偏差数据为基础，确定储能调节时段中的均衡处理繁忙时段，确定可用调节方案中的均衡处理繁忙时段的分布数据，并结合不同的均衡处理繁忙时段中不同的电池模块的剩余容量，与未参与调节的电池模块的剩余容量的匹配情况，确定可用调节方案中的优选调节方案，利用优选调节方案进行储能调节需求的响应处理，以调节处理过程中的不同的电池模块之间的均衡处理需求数据为基础，确定是否需要进行所述优选调节方案的切换处理，减少了储能调节过程中的不同的电池模块之间的均衡控制，提升了主动电池管理单元的工作可靠性。
The present invention provides a main control battery management unit and a battery management method, which belong to the technical field of power systems, and specifically include: based on battery deviation data, determining a busy period of balancing processing in an energy storage regulation period, determining distribution data of the busy period of balancing processing in an available regulation scheme, and combining the remaining capacity of different battery modules in different busy periods of balancing processing with the matching of the remaining capacity of battery modules not participating in regulation, determining a preferred regulation scheme in the available regulation schemes, using the preferred regulation scheme to perform response processing of energy storage regulation requirements, and based on the balancing processing requirement data between different battery modules in the regulation process, determining whether it is necessary to perform switching processing of the preferred regulation scheme, thereby reducing the balancing control between different battery modules in the energy storage regulation process and improving the working reliability of the active battery management unit.
Description
Technical Field
The invention belongs to the technical field of power systems, and particularly relates to a main control battery management unit and a battery management method.
Background
Because the installed capacity of the energy storage system is large, when the energy storage system is adopted to respond to the regulation treatment of the power system, the situation of unbalanced discharge or charge among batteries often occurs, and the service life of the energy storage system is inevitably reduced.
In order to solve the above technical problems, in the prior art, a battery management unit is often used to realize the management of charging and discharging of an energy storage system, and in CN202411822826.6, an intelligent battery management method and system based on cloud edge cooperation, real-time energy storage adjustment data and variable data of battery capacity of a reliable battery are used to determine whether to access a cloud to control and process an energy storage battery of the energy storage system, so that the service life of the battery is prolonged, but the technical scheme has the following technical defects:
for large-scale energy storage systems, a mode of combining a master control battery management unit and a slave control battery management unit is often adopted to realize balanced control management of batteries of the energy storage system, but in the actual adjustment process, how to realize cooperative management of the master control battery management unit and the slave control battery management unit and guarantee the battery operation safety and stability of the energy storage system becomes a technical problem to be solved urgently.
The invention provides a main control battery management unit and a battery management method aiming at the technical problems.
Disclosure of Invention
In order to achieve the purpose of the invention, the invention adopts the following technical scheme:
specifically, in a first aspect, the present application provides a battery management method, which specifically includes:
S1, generating alternative regulation schemes based on energy storage regulation requirements and residual capacities of battery modules of different slave control management units, and determining available regulation schemes in the alternative regulation schemes according to historical communication abnormal data between different slave control management units and a master control battery management unit in the alternative regulation schemes;
S2, when the available adjustment scheme is adopted to carry out similar adjustment requirements, battery deviation data among different battery modules in different energy storage adjustment periods are obtained, and based on the battery deviation data, a busy period of equalization processing in the energy storage adjustment period is determined;
s3, determining distribution data of equalization processing busy periods in the available adjustment schemes, and determining a preferred adjustment scheme in the available adjustment schemes by combining the matching situation of the residual capacities of different battery modules in different equalization processing busy periods and the residual capacities of the battery modules which do not participate in adjustment;
And S4, carrying out response processing of the energy storage regulation requirement by using the preferred regulation scheme, and determining whether switching processing of the preferred regulation scheme is needed or not based on equalization processing requirement data among different battery modules in the regulation processing.
The invention has the beneficial effects that:
According to the distribution data of the equalization processing busy periods in the available adjustment schemes and the residual capacities of different battery modules in different equalization processing busy periods, the optimal adjustment scheme in the available adjustment schemes is determined according to the matching situation of the residual capacities of the battery modules which do not participate in adjustment, so that the screening of the available adjustment schemes with fewer equalization processing busy periods is realized, the matching situation of the residual capacities of the battery modules which do not participate in adjustment is further considered, the reliability of switching processing of the adjustment schemes due to deviation of the battery capacities in the adjustment processing is also ensured, and the reliability of energy storage adjustment processing and the equalization of the battery are ensured.
Based on the balance processing requirement data among different battery modules in the adjustment processing process, whether the switching processing of the optimal adjustment scheme is needed is determined, so that the technical problem that the balance control difficulty of the main control battery management unit is high due to the fact that the residual capacity among different battery modules is deviated in the adjustment processing process of the optimal adjustment scheme is avoided, the issuing quantity of the balance control instructions of the main control battery management unit is reduced through timely switching processing of the optimal adjustment scheme, and meanwhile the stability in the energy storage adjustment process is improved.
The further technical scheme is that the energy storage adjusting requirement is determined according to an energy storage adjusting instruction received by the energy storage system.
The further technical scheme is that the energy storage regulation requirement comprises energy storage regulation power and energy storage regulation duration of the energy storage system.
The battery module of the slave control management unit is a battery module managed by the slave control management unit.
The further technical scheme is that the method for determining the alternative adjustment scheme comprises the following steps:
Based on the battery module of the slave control management unit, performing free combination to obtain a plurality of adjustment schemes;
determining the energy storage regulating power of different battery modules according to the number of the battery modules in different regulating schemes and the energy storage regulating power required by the energy storage regulating;
And determining the available adjustment time length of the battery module under the energy storage adjustment power based on the residual capacity of the battery module, and determining whether the adjustment scheme is an alternative adjustment scheme according to the energy storage adjustment time length corresponding to the energy storage adjustment requirement.
The further technical scheme is that the energy storage adjusting power of the battery modules is adjusted according to the energy storage adjusting power of the energy storage adjusting requirement, and average distribution processing is carried out based on the number of the battery modules.
The further technical scheme is that the available adjustment time length is the longest adjustment time length of the battery module under the residual capacity and the stored energy adjustment power.
A further technical solution consists in determining that the regulation scheme does not belong to an alternative regulation scheme when there is a battery module with an available regulation period for the stored energy regulation power that is less than the stored energy regulation period.
The further technical scheme is that determining whether the switching process of the preferred adjustment scheme is needed or not specifically includes:
Based on the equalization processing demand data among different battery modules in the adjustment processing process, determining the battery module with the equalization processing demand due to the deviation of the residual capacity of other battery modules, and taking the battery module as an equalization demand battery module;
Determining the total number of balancing requirements of the optimal scheduling scheme according to the balancing requirement times of different balancing requirement battery modules;
And determining whether switching processing of the preferred scheduling scheme is needed or not based on the total number of times of the balanced demands.
The further technical scheme is that the balancing demand times of the balancing demand battery modules are determined according to the deviation amount of the residual capacity among different battery modules sent by the slave control management unit, which is acquired by the master control battery management unit.
The further technical scheme is that when the total number of times of the balancing requirements is greater than a preset threshold value of times of the balancing requirements, it is determined that the switching process of the optimal scheduling scheme is required.
Further technical solutions are that when it is determined that the switching process of the preferred scheduling scheme is required, the determination of the preferred scheduling scheme is performed again according to the remaining capacities of the current different battery modules.
In a second aspect, the present invention provides a master battery management unit, and the battery management method includes:
the system comprises an instruction monitoring module, a data processing module and an instruction issuing module;
The instruction monitoring module is responsible for monitoring and processing the issuing data of the equalization instructions of different slave control management units and the operation data of the battery module;
the data processing module is responsible for generating an equalization control instruction of the energy storage system by utilizing monitoring and processing results of operation data of different battery modules;
the instruction issuing module is responsible for issuing the equalization control instruction to different slave control management units to perform equalization control processing among different battery modules.
Further technical solutions are that the operation data of the battery module include an operation current, an operation voltage, a charge-discharge curve, and a remaining capacity of the battery module.
The further technical scheme is that the balance control command is determined according to a battery module with the residual capacity or the deviation of the running voltage.
The further technical scheme is that the equalization control instruction comprises a battery module needing equalization control and deviation conditions of operation data among the battery modules.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be apparent from the description, or may be learned by practice of the invention as set forth hereinafter.
In order to make the above objects, features and advantages of the present invention more comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
The above and other features and advantages of the present invention will become more apparent by describing in detail exemplary embodiments thereof with reference to the attached drawings.
FIG. 1 is a flow chart of a battery management method;
FIG. 2 is a flow chart of a method of determination of an alternative adjustment scheme;
FIG. 3 is a flow chart of a method of determination of available adjustment schemes in an alternative adjustment scheme;
fig. 4 is a flow chart of a method of determining an equalization process busy period in a tank adjustment period;
fig. 5 is a frame diagram of a master battery management unit.
Detailed Description
In order to make the technical solutions in the present specification better understood by those skilled in the art, the technical solutions in the embodiments of the present specification will be clearly and completely described below with reference to the drawings in the embodiments of the present specification, and it is obvious that the described embodiments are only some embodiments of the present specification, not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, shall fall within the scope of the present disclosure.
According to the application, the balance processing requirements of different energy storage adjusting schemes among different battery modules in the energy storage adjusting process are fully considered, and the screening of the energy storage adjusting scheme with less balance processing requirements is realized, so that the balance control processing requirements of a main control battery management unit in the energy storage adjusting process are reduced, and the stability of the energy storage adjusting process is ensured.
Example 1
As shown in fig. 1, the present application provides a battery management method, which specifically includes:
S1, generating alternative regulation schemes based on energy storage regulation requirements and residual capacities of battery modules of different slave control management units, and determining available regulation schemes in the alternative regulation schemes according to historical communication abnormal data between different slave control management units and a master control battery management unit in the alternative regulation schemes;
And taking the average value of the historical communication abnormal times between different slave control management units and the master control battery management unit in the alternative adjustment scheme as the average value of the communication abnormal times, and determining that the alternative adjustment scheme does not belong to the available adjustment scheme when the average value of the communication abnormal times is larger than a preset threshold value of the communication abnormal times.
S2, when the available adjustment scheme is adopted to carry out similar adjustment requirements, battery deviation data among different battery modules in different energy storage adjustment periods are obtained, and based on the battery deviation data, a busy period of equalization processing in the energy storage adjustment period is determined;
when different similar adjustment times reach the energy storage adjustment time period, the average value of the discharge amounts of different battery modules is obtained, the battery capacities of the different battery modules in the energy storage adjustment time period are determined based on the average value of the discharge amounts and the residual capacities of the battery modules and used as the matched battery capacities, and when the average value of the deviation amounts between the matched battery capacities of the different battery modules is not within the preset battery capacity deviation amount interval, the energy storage adjustment time period is determined to be the balanced treatment busy time period.
S3, determining distribution data of equalization processing busy periods in the available adjustment schemes, and determining a preferred adjustment scheme in the available adjustment schemes by combining the matching situation of the residual capacities of different battery modules in different equalization processing busy periods and the residual capacities of the battery modules which do not participate in adjustment;
The method comprises the steps of determining the quantity duty ratio of balanced treatment busy periods in an available adjustment scheme, taking the balanced treatment busy periods as the quantity duty ratio of the busy periods, determining the reference residual capacity in different balanced treatment busy periods based on the average value of the residual capacities of different battery modules in different balanced treatment busy periods, taking the battery modules which are not involved in adjustment and have the deviation from the reference residual capacity within a preset deviation range as matched battery modules of the balanced treatment busy periods, taking balanced treatment busy periods with the quantity of the matched battery modules being smaller than that of the battery modules in the available adjustment scheme as switching deviation periods, and taking the available adjustment scheme with the smallest product of the quantity of the switching deviation periods and the quantity duty ratio of the busy periods as a preferable adjustment scheme.
And S4, carrying out response processing of the energy storage regulation requirement by using the preferred regulation scheme, and determining whether switching processing of the preferred regulation scheme is needed or not based on equalization processing requirement data among different battery modules in the regulation processing.
When the number of times of equalization processing required to be performed is greater than 5 or more due to the deviation in the remaining capacity between the battery modules, it is determined that switching processing of the preferred adjustment scheme is required.
Further, the energy storage adjustment requirement is determined according to an energy storage adjustment instruction received by the energy storage system.
Specifically, the energy storage adjustment requirement includes energy storage adjustment power and energy storage adjustment duration of the energy storage system.
The battery module of the slave management unit is a battery module managed by the slave management unit.
Specifically, as shown in fig. 2, the method for determining the alternative adjustment scheme is as follows:
Based on the battery module of the slave control management unit, performing free combination to obtain a plurality of adjustment schemes;
determining the energy storage regulating power of different battery modules according to the number of the battery modules in different regulating schemes and the energy storage regulating power required by the energy storage regulating;
And determining the available adjustment time length of the battery module under the energy storage adjustment power based on the residual capacity of the battery module, and determining whether the adjustment scheme is an alternative adjustment scheme according to the energy storage adjustment time length corresponding to the energy storage adjustment requirement.
Further, the energy storage adjusting power of the battery module is adjusted according to the energy storage adjusting power required by the energy storage adjusting, and the average distribution processing is performed based on the number of the battery modules.
It is understood that the available adjustment period is the longest adjustment period of the battery module at the remaining capacity and the stored energy adjustment power.
Further, when the available adjustment time length of the battery module under the stored energy adjustment power is smaller than the stored energy adjustment time length, the adjustment scheme is determined not to belong to the alternative adjustment scheme.
It is understood that the slave management unit is a sub-unit for charge and discharge management of the battery module.
Specifically, as shown in fig. 3, the method for determining the available adjustment schemes in the alternative adjustment schemes is as follows:
Determining the historical communication abnormal times between different slave control management units and the master control battery management unit according to the historical communication abnormal data between different slave control management units and the master control battery management unit in the alternative adjustment scheme;
Determining a communication anomaly number average value based on the average value of the historical communication anomaly number between different slave control management units and the master control battery management unit;
And determining whether the alternative adjustment scheme is an available adjustment scheme according to the average value of the abnormal communication times.
Further, when the average value of the abnormal communication times is greater than a preset abnormal communication times threshold value, determining that the alternative adjustment scheme does not belong to the available adjustment scheme.
Optionally, the method for determining the available adjustment schemes in the alternative adjustment schemes is as follows:
Determining the historical communication abnormal times between different slave control management units and the master control battery management unit according to the historical communication abnormal data between different slave control management units and the master control battery management unit in the alternative adjustment scheme;
Determining a risk communication unit in a slave control management unit based on historical communication anomaly times between different slave control management units and a master control battery management unit;
Determining whether the alternative adjustment scheme is an available adjustment scheme according to the number of the risk communication units.
The risk communication unit is a slave control management unit with the historical communication anomaly number between the risk communication unit and the active battery management unit being larger than a preset value of the communication anomaly number.
Further, when the number of the risk communication units is within a preset risk unit number interval, it is determined that the alternative adjustment scheme does not belong to the available adjustment scheme.
Optionally, the method for determining the available adjustment schemes in the alternative adjustment schemes is as follows:
S11, determining the historical communication abnormal times between different slave control management units and the master control battery management unit according to the historical communication abnormal data between different slave control management units and the master control battery management unit in the alternative adjustment scheme, and determining the communication processing abnormal coefficients of different slave control management units based on the historical communication abnormal times between different slave control management units and the master control battery management unit;
S12, taking the historical adjustment times of the energy storage system with communication abnormality existing simultaneously in different slave control management units in the alternative adjustment scheme as abnormal adjustment times, and determining abnormality association coefficients of different abnormal adjustment times according to the number of the slave control management units with communication abnormality in the different abnormal adjustment times;
S13, determining a scheme adjustment abnormal value of the alternative adjustment scheme according to the abnormal association coefficients of different abnormal adjustment times and the communication processing abnormal coefficients of different slave control management units, and determining whether the alternative adjustment scheme is an available adjustment scheme or not based on the scheme adjustment abnormal value.
Optionally, the communication anomaly includes communication delay anomaly, network connection interruption and packet loss.
Optionally, the step S11 includes the following:
S111, determining historical communication abnormal times between different slave control management units and a master control battery management unit according to historical communication abnormal data between different slave control management units and different master control battery management units in the alternative adjustment schemes, determining that the alternative adjustment schemes do not belong to available adjustment schemes when the number proportion of the slave control management units with the historical communication abnormal times does not meet the requirements, and switching to step S112 when the number proportion of the slave control management units with the historical communication abnormal times meets the requirements;
S112, determining the sum of the historical communication abnormal times of different slave control management units according to the historical communication abnormal times between different slave control management units and the master control battery management unit, determining that the alternative adjustment scheme does not belong to the available adjustment scheme when the sum of the historical communication abnormal times of different slave control management units does not meet the requirement, and switching to step S113 when the sum of the historical communication abnormal times of different slave control management units meets the requirement;
S113, when the slave control management units with the history communication abnormal times not meeting the requirements are determined to exist according to the history communication abnormal times between different slave control management units and the master control battery management unit, the step S114 is carried out, and when the slave control management units with the history communication abnormal times not meeting the requirements are not exist, the step S115 is carried out;
S114, when the number of the slave control management units of which the number of the historical communication abnormal times does not meet the requirement is larger than a preset slave control unit number threshold value, determining that the alternative adjustment scheme does not belong to an available adjustment scheme, and when the number of the slave control management units of which the number of the historical communication abnormal times does not meet the requirement is not larger than a preset slave control unit number threshold value, turning to a step S115;
S115, based on the historical communication abnormal times between different slave control management units and the master control battery management unit, determining communication processing abnormal coefficients of different slave control management units, when the average value of the communication processing abnormal coefficients of different slave control management units does not meet the requirement, determining that the alternative adjustment scheme does not belong to the available adjustment scheme, and when the average value of the communication processing abnormal coefficients of different slave control management units meets the requirement, turning to step S12.
Optionally, the step S12 includes the following:
s121, taking the historical adjustment times of the energy storage systems with abnormal communication existing in different slave control management units in the alternative adjustment schemes as abnormal adjustment times, when the abnormal adjustment times do not meet the requirements, determining that the alternative adjustment schemes do not belong to available adjustment schemes, and when the abnormal adjustment times meet the requirements, turning to step S122;
S122, determining that the abnormal adjustment times of which the number of the slave control management units is larger than the preset slave control unit number threshold value do not exist according to the number of the slave control management units with communication abnormality in different abnormal adjustment times, and turning to step S124, and turning to step S123 when the abnormal adjustment times of which the number of the slave control management units is larger than the preset slave control unit number threshold value exist;
S123, when the number of the slave control management units is larger than the number threshold of the preset slave control units and the abnormal adjustment times do not meet the requirement, determining that the alternative adjustment scheme does not belong to the available adjustment scheme, and when the number of the slave control management units is larger than the number threshold of the preset slave control units and the abnormal adjustment times meet the requirement, turning to a step S124;
S124, determining abnormal association coefficients of different abnormal adjustment times according to the number of slave control management units with communication abnormality in different abnormal adjustment times, determining that the alternative adjustment scheme does not belong to the available adjustment scheme when the abnormal adjustment times of the abnormal association coefficients in the preset association coefficient interval do not meet the requirement, and switching to the step S13 when the abnormal adjustment times of the abnormal association coefficients in the preset association coefficient interval meet the requirement.
Further, the similar adjustment requirement is a historical adjustment requirement that the deviation of the energy storage adjustment power and the energy storage adjustment duration of the energy storage system corresponding to the energy storage adjustment requirement are within the deviation range.
Specifically, as shown in fig. 4, the method for determining the equalization busy period in the energy storage adjustment period includes:
taking the historical adjustment times corresponding to the similar adjustment demands as similar adjustment times, and acquiring the average value of the discharge amounts of different battery modules when different similar adjustment times reach the energy storage adjustment time period;
determining the battery capacities of different battery modules in the energy storage adjustment period based on the average value of the discharge amounts and the residual capacities of the battery modules, and taking the battery capacities as matched battery capacities;
And determining whether the energy storage adjustment period is a busy period of equalization processing according to the deviation condition of the matched battery capacity between different battery modules in the available adjustment scheme.
Further, according to the deviation condition of the matched battery capacities among different battery modules in the available adjustment schemes, determining whether the energy storage adjustment period is a busy period of equalization processing specifically includes:
Based on the deviation amount of the matched battery capacity between different battery modules, other battery modules, the deviation amount of which is larger than a preset capacity deviation amount threshold value, of which the matched battery capacities are larger than the preset capacity deviation amount threshold value are determined and used as deviation battery modules;
and determining whether the energy storage adjustment period is a busy period of equalization processing according to the number of the deviation battery modules of different battery modules.
It is understood that when the number of the deviated battery modules is greater than the preset deviation battery number threshold, the energy storage adjustment period is determined to be the equalization process busy period.
Optionally, the method for determining the equalization busy period in the energy storage adjustment period includes:
taking the historical adjustment times corresponding to the similar adjustment demands as similar adjustment times, and acquiring the average value of the discharge amounts of different battery modules when different similar adjustment times reach the energy storage adjustment time period;
determining the battery capacities of different battery modules in the energy storage adjustment period based on the average value of the discharge amounts and the residual capacities of the battery modules, and taking the battery capacities as matched battery capacities;
And determining whether the energy storage adjustment period is a busy period of equalization processing according to an average value of deviation amounts between the matched battery capacities of different battery modules.
Further, when the average value of the deviation amounts between the matched battery capacities of the different battery modules is not within the preset battery capacity deviation amount interval, the energy storage adjustment period is determined to be the equalization processing busy period.
Optionally, the method for determining the equalization busy period in the energy storage adjustment period includes:
Taking the historical adjustment times corresponding to the similar adjustment demands as similar adjustment times, acquiring the discharge amounts of different battery modules when different similar adjustment times reach the energy storage adjustment time period, and determining that the energy storage adjustment time period belongs to a balanced treatment busy time period when the discharge amounts of the different battery modules do not meet the requirements when the different similar adjustment times reach the energy storage adjustment time period;
when the energy storage adjustment period is reached between different similar adjustment times, the deviation amount of the discharge amounts of different battery modules does not meet the required battery modules:
When different battery modules reach the energy storage adjustment time period between different similar adjustment times, the deviation amount of the discharge capacity of the different battery modules is used for determining the output fluctuation coefficients of the different battery modules, and when the quantity of the battery modules with the output fluctuation coefficients within a preset fluctuation coefficient interval does not meet the requirement, the energy storage adjustment time period is determined to belong to the balanced treatment busy time period;
when the number of the battery modules with the output fluctuation coefficient in the preset fluctuation coefficient interval meets the requirement:
Determining battery capacities of different battery modules in the energy storage adjustment period based on the average value of the discharge amounts and the residual capacities of the battery modules, and taking the battery capacities as matched battery capacities, wherein when the deviation conditions of the matched battery capacities among the different battery modules in the available adjustment scheme meet the requirements, the energy storage adjustment period is determined not to belong to the balanced treatment busy period;
When the deviation condition of the matched battery capacities among different battery modules in the available adjustment schemes is not uniform, the requirements are met:
Based on the deviation amount of the matched battery capacities among different battery modules, other battery modules, the deviation amount of which is larger than a preset capacity deviation amount threshold value, of which the matched battery capacities are larger than the preset capacity deviation amount threshold value are determined as deviation battery modules, and when the number of the deviation battery modules is larger than the preset deviation battery module number threshold value and the number of the battery modules does not meet the requirement, the energy storage adjustment period is determined to belong to the balanced treatment busy period;
when the number of the deviation battery modules is larger than the preset deviation battery module number threshold, the number of the battery modules meets the requirement:
Determining battery equalization probability evaluation values of different battery modules based on the number of deviation battery modules of the different battery modules and the output fluctuation coefficients of the different battery modules, and determining that the energy storage adjustment period belongs to an equalization processing busy period when the number of battery modules which do not meet the requirements of the battery equalization probability evaluation values is larger than a preset battery module number threshold value;
When the number of battery modules which do not meet the requirement in the battery equalization probability evaluation is not greater than a preset battery module number threshold value:
And determining a battery capacity balancing demand coefficient of the energy storage adjusting period according to the battery balancing probability evaluation values of different battery modules in the available adjusting scheme, and determining whether the energy storage adjusting period is a busy period of balancing processing by using the battery capacity balancing demand coefficient.
Specifically, when the battery capacity balance demand coefficient of the energy storage adjustment period is greater than a preset battery balance demand coefficient threshold, determining that the energy storage adjustment period is a balance processing busy period.
It should be noted that, the remaining capacities of different battery modules in the equalization processing busy period are determined according to the average value of the discharge amounts of the different battery modules and the remaining capacities of the battery modules when different similar adjustment times reach the energy storage adjustment period.
Specifically, the method for determining the preferred adjustment scheme in the available adjustment schemes is as follows:
Determining the quantity duty ratio of the balanced processing busy time periods in the available adjustment scheme according to the distribution data of the balanced processing busy time periods in the available adjustment scheme, and taking the quantity duty ratio as the quantity duty ratio of the busy time periods;
Determining reference residual capacity in different equalization busy periods based on average values of residual capacities of different battery modules in different equalization busy periods, and taking the battery modules which are not involved in adjustment and have deviation values of the reference residual capacity within a preset deviation value range as matched battery modules of the equalization busy periods;
and determining whether the available regulation scheme is a preferred regulation scheme or not through the number of matched battery modules of different equalization processing busy periods and the busy period number ratio.
Further, determining whether the available adjustment scheme is a preferred adjustment scheme by the number of matched battery modules of different equalization processing busy periods and the busy period number duty ratio specifically includes:
Taking the equalization busy period, which is matched with the number of battery modules and is smaller than the number of battery modules in the available regulation scheme, as a switching deviation period;
And determining a scheme matching deviation amount of the available adjustment scheme according to the product of the number of the switching deviation time periods and the duty ratio of the number of the busy time periods, and determining whether the available adjustment scheme is a preferred adjustment scheme by using the scheme matching deviation amount.
Alternatively, the preferred adjustment scheme is the available adjustment scheme with the smallest amount of deviation of the scheme matching.
In a further possible embodiment, the method of determining the preferred adjustment scheme of the available adjustment schemes is:
Determining the quantity duty ratio of the balanced treatment busy periods in the available adjustment scheme according to the distribution data of the balanced treatment busy periods in the available adjustment scheme, taking the quantity duty ratio as the quantity duty ratio of the busy periods, and determining that the available adjustment scheme does not belong to the preferred adjustment scheme when the quantity duty ratio of the busy periods of the available adjustment scheme or the quantity of the balanced treatment busy periods does not meet the requirement;
when the number of busy time periods of the available adjustment scheme and the number of balanced processing busy time periods meet the requirements:
taking time intervals among different equalization processing busy time intervals which are smaller than preset interval time intervals as distribution aggregation time intervals, and determining that the available regulation scheme does not belong to the optimal regulation scheme when the accumulated time length of the distribution aggregation time intervals is not satisfied with the requirement;
When the accumulated time length of the distributed aggregation period is as long as the ratio meets the requirement:
Acquiring the number of the distributed aggregation time periods, and determining an equalization processing aggregation coefficient by combining the number of equalization processing busy time periods in different distributed aggregation time periods, wherein when the equalization processing aggregation coefficient does not meet the requirement, the available adjustment scheme is determined not to belong to the optimal adjustment scheme;
when the equalization processing aggregation coefficient satisfies the requirement:
determining a reference residual capacity in different equalization busy periods based on an average value of residual capacities of different battery modules in the different equalization busy periods, taking a battery module which is not involved in adjustment and has a deviation amount from the reference residual capacity within a preset deviation amount range as a matched battery module of the equalization busy period, taking the matched battery module as a switching deviation period when the equalization busy period with the number of the matched battery modules being smaller than that of the battery modules in the available adjustment scheme exists, and determining that the available adjustment scheme does not belong to the preferred adjustment scheme when the number of the switching deviation period does not meet the requirement;
when the number of switching deviation periods satisfies a requirement:
And acquiring the number of switching deviation time periods in the available adjustment schemes and the time intervals between different switching deviation time periods, determining the scheme matching deviation amount of the available adjustment schemes by combining the equalization processing aggregation coefficient, and determining whether the available adjustment schemes are optimal adjustment schemes by utilizing the scheme matching deviation amount.
Further, determining whether the switching process of the preferred adjustment scheme is needed specifically includes:
Based on the equalization processing demand data among different battery modules in the adjustment processing process, determining the battery module with the equalization processing demand due to the deviation of the residual capacity of other battery modules, and taking the battery module as an equalization demand battery module;
Determining the total number of balancing requirements of the optimal scheduling scheme according to the balancing requirement times of different balancing requirement battery modules;
And determining whether switching processing of the preferred scheduling scheme is needed or not based on the total number of times of the balanced demands.
Specifically, the balancing demand times of the balancing demand battery modules are determined according to the deviation amount of the residual capacity between different battery modules sent by the slave control management unit, which is acquired by the master control battery management unit.
Further, when the total number of times of the balancing needs is greater than a preset threshold value of times of the balancing needs, it is determined that the switching process of the preferred scheduling scheme is required.
When it is determined that the switching process of the preferred scheduling scheme is required, the determination of the preferred scheduling scheme is performed again according to the remaining capacities of the current different battery modules.
Example 2
In a second aspect, as shown in fig. 5, the present invention provides a master battery management unit, and the battery management method includes:
the system comprises an instruction monitoring module, a data processing module and an instruction issuing module;
The instruction monitoring module is responsible for monitoring and processing the issuing data of the equalization instructions of different slave control management units and the operation data of the battery module;
the data processing module is responsible for generating an equalization control instruction of the energy storage system by utilizing monitoring and processing results of operation data of different battery modules;
the instruction issuing module is responsible for issuing the equalization control instruction to different slave control management units to perform equalization control processing among different battery modules.
Further technical solutions are that the operation data of the battery module include an operation current, an operation voltage, a charge-discharge curve, and a remaining capacity of the battery module.
The further technical scheme is that the balance control command is determined according to a battery module with the residual capacity or the deviation of the running voltage.
The further technical scheme is that the equalization control instruction comprises a battery module needing equalization control and deviation conditions of operation data among the battery modules.
In this specification, each embodiment is described in a progressive manner, and identical and similar parts of each embodiment are all referred to each other, and each embodiment mainly describes differences from other embodiments. In particular, for apparatus, devices, non-volatile computer storage medium embodiments, the description is relatively simple, as it is substantially similar to method embodiments, with reference to the section of the method embodiments being relevant.
The foregoing describes specific embodiments of the present disclosure. Other embodiments are within the scope of the following claims. In some cases, the actions or steps recited in the claims can be performed in a different order than in the embodiments and still achieve desirable results. In addition, the processes depicted in the accompanying figures do not necessarily require the particular order shown, or sequential order, to achieve desirable results. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.
The foregoing is merely one or more embodiments of the present description and is not intended to limit the present description. Various modifications and alterations to one or more embodiments of this description will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, or the like, which is within the spirit and principles of one or more embodiments of the present description, is intended to be included within the scope of the claims of the present description.
Claims (10)
1. A battery management method, comprising:
Generating alternative regulation schemes based on energy storage regulation requirements and the residual capacities of battery modules of different slave control management units, and determining available regulation schemes in the alternative regulation schemes by using historical communication abnormal data between different slave control management units and a master control battery management unit in the alternative regulation schemes;
when the available adjustment scheme is adopted to carry out similar adjustment requirements, battery deviation data among different battery modules in different energy storage adjustment periods are obtained, and based on the battery deviation data, a busy period of equalization processing in the energy storage adjustment period is determined;
Determining distribution data of equalization processing busy periods in available adjustment schemes, and determining a preferred adjustment scheme in the available adjustment schemes by combining the matching situation of the residual capacities of different battery modules in different equalization processing busy periods and the residual capacities of battery modules which do not participate in adjustment;
performing response processing of the energy storage regulation requirement by using the preferred regulation scheme, and determining whether switching processing of the preferred regulation scheme is required or not based on equalization processing requirement data among different battery modules in the regulation processing;
The similar adjustment requirement is a historical adjustment requirement of which the deviation of the energy storage adjustment power and the energy storage adjustment duration of the energy storage system corresponding to the energy storage adjustment requirement are within the deviation range.
2. The battery management method of claim 1, wherein the energy storage adjustment demand is determined based on an energy storage adjustment command received by an energy storage system.
3. The battery management method of claim 1, wherein the energy storage regulation requirements include an energy storage regulation power of an energy storage system and an energy storage regulation duration.
4. The battery management method of claim 1, wherein the method of determining the alternative adjustment scheme is:
Based on the battery module of the slave control management unit, performing free combination to obtain a plurality of adjustment schemes;
determining the energy storage regulating power of different battery modules according to the number of the battery modules in different regulating schemes and the energy storage regulating power required by the energy storage regulating;
And determining the available adjustment time length of the battery module under the energy storage adjustment power based on the residual capacity of the battery module, and determining whether the adjustment scheme is an alternative adjustment scheme according to the energy storage adjustment time length corresponding to the energy storage adjustment requirement.
5. The battery management method according to claim 4, wherein the stored energy adjustment power of the battery modules is based on the stored energy adjustment power of the stored energy adjustment demand, and the average distribution process is performed based on the number of the battery modules.
6. The battery management method of claim 4 wherein when there is a battery module available conditioning time period at the stored energy conditioning power that is less than the stored energy conditioning time period, then determining that the conditioning scheme does not belong to an alternative conditioning scheme.
7. The battery management method according to claim 1, wherein determining whether the switching process of the preferred adjustment scheme is required or not, specifically comprises:
Based on the equalization processing demand data among different battery modules in the adjustment processing process, determining the battery module with the equalization processing demand due to the deviation of the residual capacity of other battery modules, and taking the battery module as an equalization demand battery module;
determining the total number of balancing requirements of the optimal regulation scheme according to the balancing requirement times of different balancing requirement battery modules;
And determining whether switching processing of the preferred regulation scheme is needed or not based on the total number of times of the balance requirement.
8. The battery management method according to claim 7, wherein the number of times of balancing demand of the balancing demand battery module is determined based on the deviation amount of the master battery management unit from the remaining capacity between the different battery modules transmitted from the master management unit.
9. The battery management method according to claim 1, wherein when it is determined that the switching process of the preferred regulation scheme is required, the determination of the preferred regulation scheme is performed again in accordance with the remaining capacities of the different battery modules at present.
10. A master battery management unit employing a battery management method according to any one of claims 1-9, comprising:
the system comprises an instruction monitoring module, a data processing module and an instruction issuing module;
The instruction monitoring module is responsible for monitoring and processing the issuing data of the equalization instructions of different slave control management units and the operation data of the battery module;
the data processing module is responsible for generating an equalization control instruction of the energy storage system by utilizing monitoring and processing results of operation data of different battery modules;
the instruction issuing module is responsible for issuing the equalization control instruction to different slave control management units to perform equalization control processing among different battery modules.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202510543933.3A CN120073966B (en) | 2025-04-28 | 2025-04-28 | Main control battery management unit and battery management method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202510543933.3A CN120073966B (en) | 2025-04-28 | 2025-04-28 | Main control battery management unit and battery management method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN120073966A CN120073966A (en) | 2025-05-30 |
| CN120073966B true CN120073966B (en) | 2025-07-25 |
Family
ID=95787819
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202510543933.3A Active CN120073966B (en) | 2025-04-28 | 2025-04-28 | Main control battery management unit and battery management method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN120073966B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116826915A (en) * | 2023-07-04 | 2023-09-29 | 云储新能源科技有限公司 | SoC balance control method and system for distributed battery energy storage system |
| CN118889621A (en) * | 2024-07-25 | 2024-11-01 | 云储新能源科技有限公司 | A control method for a reconfigurable battery energy storage system |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9136705B2 (en) * | 2011-06-17 | 2015-09-15 | GM Global Technology Operations LLC | Scalable method of proportional active state of charge balancing for managing variations in the state of health of batteries |
| CN103208809A (en) * | 2013-03-22 | 2013-07-17 | 华北电力大学 | Regulating device and control method for balance of demand side battery pack |
| JP6918877B2 (en) * | 2019-08-30 | 2021-08-11 | 本田技研工業株式会社 | Charge / discharge management device and vehicle |
-
2025
- 2025-04-28 CN CN202510543933.3A patent/CN120073966B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116826915A (en) * | 2023-07-04 | 2023-09-29 | 云储新能源科技有限公司 | SoC balance control method and system for distributed battery energy storage system |
| CN118889621A (en) * | 2024-07-25 | 2024-11-01 | 云储新能源科技有限公司 | A control method for a reconfigurable battery energy storage system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN120073966A (en) | 2025-05-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20230148201A1 (en) | Method and system for supplying power to device, and related device | |
| CN118739526B (en) | A method and system for optimizing internal power distribution of a hybrid energy storage system | |
| CN116388347B (en) | Energy comprehensive management platform for household battery energy storage | |
| CN118842197B (en) | Hybrid energy storage device and state evaluation method thereof | |
| TW202215746A (en) | Energy dispatch system, apparatus, and method | |
| CN117713295A (en) | Energy storage system and inter-cluster SOC balance control method thereof | |
| CN118659418A (en) | A hybrid energy storage system converter off-grid control method and system | |
| CN117713174A (en) | A method for power adjustment of energy storage system | |
| CN119696116B (en) | Battery energy optimization management method and system | |
| KR20180047137A (en) | Energy storage system and frequency control system including the same | |
| CN120073966B (en) | Main control battery management unit and battery management method | |
| JP7709407B2 (en) | Virtual power storage management system and virtual power storage management method | |
| JP7185590B2 (en) | Electricity storage system, battery sales method, and battery counting system | |
| CN118676972B (en) | Comprehensive management system and method for energy storage power station of electric power system | |
| CN116278951B (en) | Vehicle standby power management system | |
| WO2018157534A1 (en) | Balancing method and device for energy storage battery management system and energy storage battery management system | |
| CN117220272A (en) | Method, system, equipment and storage medium for distributing power of battery energy storage power station | |
| WO2019025775A1 (en) | A system and method for controlling devices in a power distribution network | |
| CN114135928B (en) | Centralized control method, terminal and storage medium for electric heating system | |
| CN116683485A (en) | Scheduling method and device of cluster energy storage system, electronic equipment and storage medium | |
| CN118971098B (en) | A power distribution method and system for energy storage converter | |
| CN119298315B (en) | Intelligent battery management method and system based on cloud-edge collaboration | |
| CN119994898B (en) | Power supply strategy adjustment method and system based on one graph of power grid | |
| CN120091363B (en) | Network transmission dynamic power distribution method and system of hydrogen-electricity hybrid unmanned aerial vehicle | |
| CN120090249A (en) | A modular energy storage system |
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 | ||
| GR01 | Patent grant |