CN112152284B - Intelligent gap charging management system, method and device for storage battery - Google Patents
Intelligent gap charging management system, method and device for storage battery Download PDFInfo
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- CN112152284B CN112152284B CN202010943048.1A CN202010943048A CN112152284B CN 112152284 B CN112152284 B CN 112152284B CN 202010943048 A CN202010943048 A CN 202010943048A CN 112152284 B CN112152284 B CN 112152284B
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/44—Methods for charging or discharging
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
- H02J7/0014—Circuits for equalisation of charge between batteries
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
- H02J7/005—Detection of state of health [SOH]
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
The embodiment of the application discloses a system, a method and a device for intelligent gap charging management of a storage battery. According to the technical scheme, the first operation parameters of the storage battery pack are collected in the power supply loop of the charging device for the load and the storage battery pack through the total collection module, the second operation parameters are collected through the plurality of collection equalization modules corresponding to the single batteries of the storage battery pack respectively, the storage battery pack operation state is analyzed by the integrated controller based on the first operation parameters and the second operation parameters, analysis results are obtained, and charging management is conducted on the storage battery pack according to the analysis results. By adopting the technical means, the gap charging and the equalizing charging of the storage battery pack are realized through charging management, so that the vulcanization degree of the storage battery is reduced, the charging and discharging of the storage battery pack are equalized, and the service life of the battery is further prolonged.
Description
Technical Field
The embodiment of the application relates to the technical field of storage batteries, in particular to a system, a method and a device for intelligent gap charging management of a storage battery.
Background
The storage battery pack is used as a standby power supply of a direct current system, and can be used as a load only power supplier in the case of alternating current power failure or other accident states. Once the storage battery pack has a problem, the whole power supply system is subject to breakdown, equipment outage and even other major operation accidents. In general, the load in the system is powered by the relevant power source such as the commercial power. The power supply (i.e., charging device) simultaneously charges the system battery pack while providing power to the load. In addition, in order to avoid the overcharge of the battery pack, the battery pack is usually in a floating state, so that the battery pack can be kept in a charging satisfying state for a long time without being overcharged, and the performance reduction and damage of the battery can be avoided.
However, the long-term floating charge of the storage battery pack is likely to cause the vulcanization, water loss and the like of the polar plate of the storage battery pack, and also causes the performance reduction and damage of the storage battery pack.
Disclosure of Invention
The embodiment of the application provides an intelligent gap charging management system, method and device for a storage battery, which can reduce the vulcanization degree of the storage battery, enable the charge and discharge of a storage battery pack to be balanced and prolong the service life of the storage battery.
In a first aspect, an embodiment of the present application provides a system for managing intelligent gap charging of a storage battery, including: the system comprises an integrated controller, a total acquisition module and a plurality of acquisition balancing modules;
the main acquisition module is used for acquiring a first operation parameter of the storage battery pack in a power supply loop of the charging device to a load and the storage battery pack and sending the first operation parameter to the centralized controller;
each acquisition balancing module is used for acquiring a second operation parameter corresponding to a single battery of the storage battery pack and sending the second operation parameter to the centralized controller;
the integrated controller is used for receiving the first operating parameter and the second operating parameter, analyzing the operating state of the storage battery pack based on the first operating parameter and the second operating parameter, and performing charging management on the storage battery pack according to an analysis result, wherein the charging management comprises sending a first control instruction to a charging device and/or the acquisition equalization module, controlling the charging device and/or the acquisition equalization module to perform interval charging on the whole storage battery pack or single batteries, sending a second control instruction to the acquisition equalization module, and controlling the acquisition equalization module to perform equalization charging management among the single batteries.
The management background is in signal connection with the centralized controller, receives the first operating parameter and the second operating parameter uploaded by the centralized controller, is used for performing remote monitoring, alarming and remote charging and discharging control on the storage battery pack, performs data analysis based on the first operating parameter, the second operating parameter and historical operating data of the storage battery pack, and evaluates the health state of each single battery of the storage battery pack.
Further, the first operation parameter comprises the voltage, the current and the environment temperature parameter of the storage battery pack; the second operation parameters comprise voltage, temperature, internal resistance, nuclear capacity and charging function parameters of the corresponding single battery.
In a second aspect, an embodiment of the present application provides a method for managing intelligent gap charging of a storage battery, which is applied to a system for managing intelligent gap charging of a storage battery according to the first aspect of the present application, and includes:
the method comprises the steps that a first operation parameter of a storage battery pack is collected in a power supply loop of a load and the storage battery pack through a total collection module, the first operation parameter is sent to an integrated controller, a plurality of collection balancing modules respectively correspond to each single battery of the storage battery pack to collect a second operation parameter, and the second operation parameter is sent to the integrated controller;
the centralized controller receives the first operating parameter and the second operating parameter, and analyzes the operating state of the storage battery pack based on the first operating parameter and the second operating parameter to obtain an analysis result;
and the integrated controller performs charging management on the storage battery pack according to the analysis result, wherein the charging management comprises sending a first control instruction to the charging device and/or the acquisition equalization module, controlling the charging device and/or the acquisition equalization module to perform gap charging on the whole storage battery pack or the single batteries, sending a second control instruction to the acquisition equalization module, and controlling the acquisition equalization module to perform equalization charging management among the single batteries.
Further, analyzing the operation state of the storage battery pack based on the first operation parameter and the second operation parameter to obtain an analysis result, including:
and inputting the first operating parameter and the second operating parameter into a preset storage battery running state analysis model, and outputting a corresponding running state analysis result, wherein the storage battery running state analysis model is constructed based on the storage battery historical operating parameters.
Further, the integrated controller performs charging management on the storage battery pack according to the analysis result, including:
when the whole storage battery pack or the single battery is determined to be in a predefined running state according to the running state analysis result, sending a first control instruction to a charging device and/or the acquisition balancing module;
and the charging device and/or the acquisition and equalization module responds to the first control instruction, starts a gap charging mode to supply power to the whole storage battery pack or the single battery, and performs pulse charging based on preset charging current in the gap charging mode, detects the battery voltage in the charging gap of the pulse charging until the battery voltage reaches a set voltage value, and exits the gap charging mode.
Further, analyzing the operation state of the storage battery pack based on the first operation parameter and the second operation parameter to obtain an analysis result, including:
and calculating the balance degree among the single batteries of the storage battery pack according to the first operation parameter and the second operation parameter, wherein the balance degree is used for marking the voltage difference and the electric quantity difference among the single batteries.
Further, the charging management of the storage battery pack by the centralized controller according to the analysis result includes:
the centralized controller compares the balance degree with a preset balance degree standard value, and when the balance degree is greater than the balance degree standard value, a second control instruction is sent to the acquisition balance module;
and the acquisition balancing module responds to the second control instruction and controls the appointed single batteries to carry out electric quantity transfer so as to enable the balance among the single batteries to be smaller than the standard value of the balance.
In a third aspect, an embodiment of the present application provides a device for managing intelligent gap charging of a storage battery, including:
the acquisition module is used for acquiring first operating parameters of the storage battery pack in a power supply loop of the charging device to a load and the storage battery pack through the total acquisition module, transmitting the first operating parameters to the centralized controller, acquiring second operating parameters corresponding to each single battery of the storage battery pack through the plurality of acquisition balancing modules respectively, and transmitting the second operating parameters to the centralized controller;
the analysis module is used for receiving the first operation parameter and the second operation parameter through the centralized controller, and analyzing the operation state of the storage battery pack based on the first operation parameter and the second operation parameter to obtain an analysis result;
and the management module is used for performing charging management on the storage battery pack through the integrated controller according to the analysis result, wherein the charging management comprises sending a first control instruction to the charging device and/or the acquisition and equalization module, controlling the charging device and/or the acquisition and equalization module to perform interval charging on the whole storage battery pack or the single batteries, sending a second control instruction to the acquisition and equalization module, and controlling the acquisition and equalization module to perform equalization charging management among the single batteries.
In a fourth aspect, embodiments of the present application provide a storage medium containing computer-executable instructions for performing the battery intelligent gap charging management method according to the second aspect when executed by a computer processor.
According to the embodiment of the application, the first operation parameters of the storage battery pack are collected in the power supply loop of the load and the storage battery pack through the total collection module, the second operation parameters are collected through the plurality of collection balancing modules corresponding to the single batteries of the storage battery pack respectively, the storage battery pack operation state is analyzed by the integrated controller based on the first operation parameters and the second operation parameters, an analysis result is obtained, and charging management is carried out on the storage battery pack according to the analysis result. By adopting the technical means, the gap charging and the equalizing charging of the storage battery pack are realized through charging management, so that the vulcanization degree of the storage battery is reduced, the charging and discharging of the storage battery pack are equalized, and the service life of the battery is further prolonged.
Drawings
Fig. 1 is a schematic structural diagram of an intelligent gap charging management system for a storage battery according to an embodiment of the present disclosure;
fig. 2 is a flowchart of a method for managing intelligent gap charging of a storage battery according to an embodiment of the present disclosure;
fig. 3 is a flowchart illustrating a gap charging management according to an embodiment of the present application;
fig. 4 is a flowchart illustrating equalizing charge management in accordance with a first embodiment of the present application;
fig. 5 is a schematic structural diagram of an intelligent gap charging management apparatus for a storage battery according to a second embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, specific embodiments of the present application will be described in detail with reference to the accompanying drawings. It is to be understood that the specific embodiments described herein are merely illustrative of the application and are not limiting of the application. It should be further noted that, for the convenience of description, only some but not all of the relevant portions of the present application are shown in the drawings. Before discussing exemplary embodiments in more detail, it should be noted that some exemplary embodiments are described as processes or methods depicted as flowcharts. Although a flowchart may describe the operations (or steps) as a sequential process, many of the operations can be performed in parallel, concurrently or simultaneously. In addition, the order of the operations may be re-arranged. The process may be terminated when its operations are completed, but may have additional steps not included in the figure. The processes may correspond to methods, functions, procedures, subroutines, and the like.
The application provides a management system and method that charges in battery intelligence clearance, through gather whole storage battery's operational parameter and each single cell's of storage battery operational parameter in charging device is to load and storage battery's power supply circuit, and then carry out storage battery's running state analysis based on operational parameter through centralized controller, carry out storage battery's clearance charge and equalizing charge management according to the analysis result, reduce the vulcanization degree of battery with this, make storage battery charge-discharge equilibrium, improve the life of battery. Compared with the conventional storage battery pack, when the storage battery pack is charged, the storage battery pack is usually charged in a floating state in order to avoid the overcharge phenomenon of the storage battery pack. The problems of pole plate vulcanization, water loss and the like are easily caused when the storage battery pack is charged in a floating charging state, so that the performance and the service life of the storage battery pack are influenced. Therefore, the storage battery intelligent gap charging management system and method provided by the embodiment of the application are provided to solve the technical problem of pole plate vulcanization in the existing storage battery charging process and solve the problem of storage battery charging and discharging balance.
The first embodiment is as follows:
fig. 1 is a schematic structural diagram of an intelligent gap charging management system for a storage battery according to an embodiment of the present application, and referring to fig. 1, the intelligent gap charging management system for a storage battery includes: the system comprises an integrated controller 11, a total acquisition module 12 and a plurality of acquisition balancing modules 13; the total acquisition module 12 is configured to acquire a first operating parameter of the storage battery pack 15 in a power supply loop of the charging device 14 to the load 16 and the storage battery pack 15, and send the first operating parameter to the centralized controller 11; each acquisition balancing module 13 is configured to acquire a second operating parameter corresponding to a single battery of the storage battery pack 15, and send the second operating parameter to the centralized controller 11; the centralized controller 11 is configured to receive the first operating parameter and the second operating parameter, analyze an operating state of the storage battery pack 15 based on the first operating parameter and the second operating parameter, and perform charging management on the storage battery pack 15 according to an analysis result, where the charging management includes sending a first control instruction to the charging device 14 and/or the acquisition and equalization module 13, controlling the charging device 14 and/or the acquisition and equalization module 13 to perform gap charging on the entire storage battery pack 15 or the single battery, sending a second control instruction to the acquisition and equalization module 15, and controlling the acquisition and equalization module 15 to perform equalization charging management between the single batteries.
As shown in fig. 1, in the power supply circuit, the charging device 14 supplies power to the load 16 and the battery pack 15, respectively. By connecting battery pack 15 in parallel with load 16, power is supplied to load 16 through battery pack 15 when charging device 14 is powered down. In a normal state, charging device 14 charges battery pack 15 while supplying load 16 with electric power. In the charging process of the storage battery pack, the embodiment of the application is provided with the total acquisition module 12 corresponding to the storage battery pack 15 and the acquisition equalization module 13 corresponding to each single battery of the storage battery pack, so that the operation state parameters of the whole storage battery pack and each single battery in the storage battery pack are acquired respectively, the operation state parameter of the whole storage battery pack is defined as a first operation parameter, and the operation state parameter of each single battery is defined as a second operation parameter. And sending the first operating parameter and the second operating parameter to the centralized controller so as to analyze the operating parameters through the centralized controller, and further outputting a corresponding analysis result. Based on the analysis result, the integrated controller can judge whether the storage battery pack has aging, performance degradation and the like. And determining whether the voltage and the electric quantity are unbalanced among the single batteries. And then carrying out interval charging and equalizing charging management on the storage battery pack based on the analysis result.
Specifically, in the embodiment of the present application, the centralized controller 11 serves as a system host, and is a monitoring and control center of an operating system, and is configured to coordinate operations of other devices in the system to implement monitoring and charging control of the storage battery pack. The operation state of the whole storage battery pack and/or the single battery is analyzed based on the operation parameters by processing the first operation parameters uploaded by the main acquisition module and the second operation parameters of the acquisition and equalization module, and the intermittent charging management is carried out when the battery is aged.
The total acquisition module 12 is configured to monitor an operation state of the entire storage battery pack and acquire a first operation parameter of the storage battery pack. The first operation parameter comprises the voltage, the current and the environment temperature parameter of the storage battery pack. The main acquisition module is connected with the centralized controller in an RS485 wired communication mode, and one storage battery pack is provided with one main acquisition module. The acquisition and equalization module 13 is configured to monitor an operation state of the corresponding single battery, and acquire a second operation parameter of the single battery, where the second operation parameter includes a voltage, a temperature, an internal resistance, a nuclear capacity, and a charging function parameter of the corresponding single battery. Generally, one equalizing acquisition module is configured for one single battery in the storage battery pack. The balance acquisition module is internally integrated with a gap charging and discharging unit which is used for charging and discharging the single battery so as to realize the gap charging and the balance charging of the single battery. It should be noted that, the equalizing acquisition module also serves as a power supply, and when performing the gap charging, the equalizing acquisition module supplies power to the single batteries through the gap charging and discharging unit, so as to achieve the gap charging of the single batteries. The balanced acquisition module is also connected with the centralized controller in an RS485 wired communication mode. In some embodiments, according to a system setting requirement, the total acquisition module and the balanced acquisition module may also be in signal connection with the centralized controller in a wireless communication manner, so that more remote monitoring and charging and discharging control of the centralized controller on the system may be achieved.
In addition, as shown in fig. 1, the intelligent gap charging management system for a storage battery according to the embodiment of the present application further includes a management background 17, where the management background 17 is in signal connection with the centralized controller 11, receives the first operating parameter and the second operating parameter uploaded by the centralized controller 11, and is used to perform remote monitoring, alarming, and remote charging and discharging control on the storage battery pack 15, perform data analysis based on the first operating parameter, the second operating parameter, and historical operating data of the storage battery pack 15, and evaluate the health status of each single battery of the storage battery pack 15. The management background 17 operates based on the B/S mode, and a manager and other related users can access the login management background through a webpage, and can realize remote control of charging and discharging of the storage battery pack by one key after the switching of related lines is completed. And the operating state parameters of the battery pack (i.e., the first operating parameter and the second operating parameter sent by the centralized controller) may be stored as historical operating data and graphed for subsequent data analysis. The health condition of the storage battery is intelligently judged through data analysis, and the laggard single batteries are screened in time. It can be understood that the management background can determine the single battery with relatively large aging degree in the storage battery pack by constructing a relevant data model and analyzing the historical operating data of the storage battery pack, so as to realize the screening and positioning of the lagging single battery of the storage battery pack. And according to the first operating parameter and the second operating parameter received in real time, some abnormal operating conditions can be alarmed. For example, a high temperature alarm to the battery pack is triggered when the battery pack temperature is above a set alarm threshold. In addition, the management background can be connected with a user terminal (such as a mobile phone or a computer) through a wireless network, and receives a remote control instruction of a related user to realize remote management on the storage battery pack. The running state parameters of the storage battery pack can also be sent to the user terminal in real time, so that the remote monitoring of the storage battery pack is realized. On the other hand, corresponding to one end of the centralized controller, after the first operation parameter and the second operation parameter are collected in real time, historical operation data can be extracted through the connection management background, and the three parts of data are integrated to analyze the operation state of the storage battery, so that a better analysis effect is achieved.
Specifically, fig. 2 is a flowchart of an intelligent gap charging management method for a storage battery according to an embodiment of the present disclosure, where the intelligent gap charging management method for a storage battery according to the present disclosure may be executed by the intelligent gap charging management system for a storage battery, the intelligent gap charging management system for a storage battery may be implemented by software and/or hardware, and the intelligent gap charging management system for a storage battery may be formed by a plurality of physical entities.
The following description will be made by taking the battery intelligent gap charging management system as an example of a main body for executing the battery intelligent gap charging management method. Referring to fig. 2, the method for managing intelligent gap charging of a storage battery specifically includes:
s110, collecting first operation parameters of a storage battery pack in a power supply loop of a charging device for a load and the storage battery pack through a total collection module, sending the first operation parameters to an integrated controller, collecting second operation parameters corresponding to each single battery of the storage battery pack through a plurality of collection balancing modules respectively, and sending the second operation parameters to the integrated controller;
and S120, the centralized controller receives the first operating parameter and the second operating parameter, and performs storage battery pack operating state analysis based on the first operating parameter and the second operating parameter to obtain an analysis result.
Specifically, in the operation process of the intelligent gap charging management system for the storage battery in the embodiment of the application, a total acquisition module and an acquisition equalization module are used for respectively acquiring a first operation parameter and a second operation parameter, and the first operation parameter and the second operation parameter are sent to an integrated controller for operation state analysis. The centralized controller, the total acquisition module or the acquisition balancing module can set an acquisition period, and the acquisition of the running state parameters is carried out every other acquisition period, so that the time synchronization of the acquisition of the running state parameters of the two parts is ensured.
Further, for one end of the integrated controller, after the first operating parameter and the second operating parameter are collected, the operating state of the storage battery pack is analyzed based on the two operating state parameters. When the running state is analyzed, the embodiment of the application mainly aims to determine the aging degree of the whole storage battery pack and each single battery and the balance degree between the single batteries, namely the voltage difference and the electric quantity difference between the single batteries. Based on the analysis requirement, the aging degree analysis and the balance degree analysis of the storage battery pack are respectively carried out on the first operation parameter and the second operation parameter, and the obtained analysis result can be used for carrying out corresponding charging management operation on the storage battery pack subsequently.
Further, when the aging degree of the storage battery pack is determined, the first operating parameter and the second operating parameter are input into a preset storage battery pack operating state analysis model, a corresponding operating state analysis result is output, and the storage battery pack operating state analysis model is constructed based on the historical operating parameters of the storage battery pack. Specifically, the storage battery pack operation state analysis model can be constructed by using a neural network based on the storage battery pack historical operation parameters as training samples. There are many specific embodiments for constructing the data analysis model based on the neural network, and the detailed description is omitted here.
In one embodiment, a big data analysis model is constructed in advance and used as a storage battery pack running state analysis model. The storage battery running state analysis model formula is as follows:
f(x i )＝w 1 x 1 +w 2 x 2 +...+w n x n
wherein [ w 1 ,w 2 ...,w n ]For the influence coefficients of various parameters, the influence coefficients are constructed according to the historical data rule of the storage battery corresponding to the operation state parameters, [ x ] 1 ,x 2 ...,x n ]For various operating state parameters, e.g. current, voltage, temperature, etc., f (x) i ) Is the corresponding analysis result. Setting a result threshold value for the storage battery running state analysis model according to the analysis requirement, and when the analysis result f (x) i ) If the result is greater than the threshold value, the current storage battery pack or the single storage battery is considered to be aged. And, the analysis result f (x) thereof i ) The larger the value of (A), the more severe the degree of aging. It should be noted that, according to the analysis requirement, when the first operation parameter is input, the output result of the storage battery pack operation state analysis model is used for evaluating the aging condition of the storage battery pack. When the second operation parameter is input, the output result is used for evaluating the aging condition of the corresponding single battery. And when analyzing the two parameters, comparing the two parameters by using different result thresholds.
The storage battery pack operating state analysis model is only one implementation way of analyzing the storage battery pack operating state based on the first operating parameter and the second operating parameter in the embodiment of the present application. In practical application, a plurality of different data analysis models can be used for analysis so as to obtain ideal analysis results adaptively. The embodiment of the application does not make fixed limitation on the analysis model of the running state of the storage battery pack, and is not repeated herein.
On the other hand, when the storage battery pack balance degree is analyzed, the balance degree among the single batteries of the storage battery pack is calculated according to the first operation parameter and the second operation parameter, and the balance degree is used for marking the voltage difference and the electric quantity difference among the single batteries. And calculating the electric quantity of each single battery by using an electric quantity calculation formula based on the first operation parameter and the second operation parameter, so that the electric quantity difference between the single batteries can be determined. And determining the voltage difference of each single battery based on the detected voltage value of each single battery of the second operation parameter. And then the balance degree between the single batteries can be determined based on the determined electric quantity difference and the determined voltage difference. The balance degree calculation formula is as follows:
H＝h 1 -h 2 ＝(d 1 a 1 +d 2 b 1 )-(d 1 a 2 +d 2 b 2 )
wherein H is the balance of two single batteries, good H 1 、h 2 Respectively representing the equilibrium values of two cells, d 1 Is a voltage influence coefficient, d 2 As a coefficient of influence of electric quantity, d 1 、d 2 And according to the actual calculation requirement setting of the balance degree. a is 1 、a 2 Voltage values of two single batteries, b 1 、b 2 The electric quantity values of the two single batteries are respectively. The equalization degree between the two single batteries can be determined based on the equalization degree calculation formula, and the equalization condition between the two single batteries is represented based on the equalization degree. The above-described manner of calculating the balance degree is only one implementation manner of determining the balance degree between the single batteries according to the embodiment of the present application. In practical application, a plurality of different calculation formulas can be used for representing the balance degree among the single batteries so as to obtain an ideal analysis result adaptively. The embodiment of the application does not make fixed limitation on the calculation formula of the balance degree between the single batteries, and is not repeated herein.
And S130, the integrated controller performs charging management on the storage battery pack according to the analysis result, wherein the charging management comprises sending a first control instruction to a charging device and/or the acquisition and equalization module, controlling the charging device and/or the acquisition and equalization module to perform gap charging on the whole storage battery pack or the single batteries, sending a second control instruction to the acquisition and equalization module, and controlling the acquisition and equalization module to perform equalization charging management among the single batteries.
Further, based on the analysis result determined in step S120, the charging management of the battery pack may be performed based on the analysis result. The intermittent charging management is performed based on the operation state analysis result (i.e., the aging degree analysis result) of the battery pack. And carrying out equalizing charge management based on the equalizing degree comparison. Referring to fig. 3, the gap charge management process includes:
s1301, when the whole storage battery pack or the single battery is determined to be in a predefined running state according to the running state analysis result, sending a first control instruction to a charging device and/or the acquisition balancing module;
s1302, the charging device and/or the acquisition and equalization module responds to the first control instruction, a gap charging mode is started to supply power to the whole storage battery pack or the single battery, pulse charging is carried out based on preset charging current in the gap charging mode, battery voltage is detected in a charging gap of the pulse charging, and the gap charging mode is exited until the battery voltage reaches a set voltage value.
Specifically, based on the comparison between the output result of the storage battery running state analysis model and the result threshold, if the output result is greater than the result threshold, the corresponding whole storage battery or single battery is in a predefined running state (i.e., an aging state). And the centralized controller carries out interval charging management. Because the output result of the storage battery running state analysis model corresponds to the whole storage battery and can also correspond to the single storage battery, when the storage battery is electrified in a clearance way, the charging device and/or the acquisition and equalization module can be used for carrying out clearance charging, and electric energy is provided for the whole storage battery or the single battery. According to the actual charging requirement, the charging device and the acquisition and equalization module can be simultaneously started to provide electric energy or independently operated to provide electric energy.
When the gap charging is performed, a constant large current is set as a charging current, and the charging current is charged in a pulse charging manner, so that the gap charging is realized. In addition, during the charging process, the battery voltage is detected in the charging gap of the pulse charging, and the gap charging mode is exited when the battery is detected to reach the set voltage value because the battery voltage is detected in order to avoid the influence of the continuous charging when the charging reaches the rated voltage of the battery and the performance of the battery. It can be understood that, the embodiment of the application adopts the digital pulse power supply technology, when pulse charging is carried out, the internal electrode plate of the storage battery generates resonance, the crystallization of the internal electrode plate of the storage battery and the precipitation of sulfuric acid are activated, the situation that the storage battery is sulfated due to long-term floating charging is prevented, the potential safety hazard caused by the interior of the storage battery is eliminated, and the storage battery is further ensured to be in the optimal state.
On the other hand, referring to fig. 4, the flow of the equalizing charge management includes:
s1303, the centralized controller compares the balance degree with a preset balance degree standard value, and sends a second control instruction to the acquisition and balance module when the balance degree is greater than the balance degree standard value;
and S1304, the acquisition balancing module responds to the second control instruction and controls the appointed single batteries to carry out electric quantity transfer so that the balance among the single batteries is smaller than the standard value of the balance.
It can be understood that, based on the balance degree between the single batteries determined by the balance degree calculation formula in step S120, whether the two single batteries are relatively balanced is determined by presetting a standard value of the balance degree. It is understood that when the degree of equalization is less than or equal to the standard value of the degree of equalization, the relative equalization between the two unit cells is considered. On the contrary, when the balance degree is greater than the standard value of the balance degree, the two single batteries are considered to have the condition of unbalance. Based on this, the centralized controller sends the second control instruction to each acquisition and equalization module, and the acquisition and equalization module controls each single battery to charge and discharge, so that the equalization charging management among the single batteries is realized. The equalizing charge management uses a power transfer technique to transfer the power of the high voltage battery to the low voltage battery. And the electric quantity transfer is carried out in a bidirectional parallel mode, namely, the electric quantity of any high-voltage single battery can be transferred to any other low-voltage single battery at the same time, so that the voltage balance of each single battery of the storage battery pack is achieved, and the balance among the single batteries is improved.
The method comprises the steps that a main acquisition module acquires first operation parameters of the storage battery pack in a power supply loop of the charging device for a load and the storage battery pack, a plurality of acquisition balancing modules acquire second operation parameters corresponding to single batteries of the storage battery pack, an integrated controller analyzes the operation state of the storage battery pack based on the first operation parameters and the second operation parameters to obtain an analysis result, and the storage battery pack is subjected to charging management according to the analysis result. By adopting the technical means, the gap charging and the equalizing charging of the storage battery pack are realized through charging management, so that the vulcanization degree of the storage battery is reduced, the charging and discharging of the storage battery pack are equalized, and the service life of the battery is further prolonged.
Example two:
on the basis of the foregoing embodiment, fig. 5 is a schematic structural diagram of an intelligent gap charging management device for a storage battery according to a second embodiment of the present application. Referring to fig. 5, the intelligent gap charging management device for a storage battery provided in this embodiment specifically includes: an acquisition module 21, an analysis module 22 and a management module 23.
The acquisition module 21 is configured to acquire a first operating parameter of the storage battery pack in a power supply loop of the charging device to a load and the storage battery pack through a total acquisition module, send the first operating parameter to the centralized controller, acquire a second operating parameter corresponding to each single battery of the storage battery pack through a plurality of acquisition balancing modules, and send the second operating parameter to the centralized controller;
the analysis module 22 is configured to receive the first operating parameter and the second operating parameter through the centralized controller, and perform storage battery pack operating state analysis based on the first operating parameter and the second operating parameter to obtain an analysis result;
the management module 23 is configured to perform charging management on the storage battery pack according to the analysis result by the centralized controller, where the charging management includes sending a first control instruction to the charging device and/or the acquisition and equalization module, controlling the charging device and/or the acquisition and equalization module to perform gap charging on the entire storage battery pack or the single battery cells, sending a second control instruction to the acquisition and equalization module, and controlling the acquisition and equalization module to perform equalization charging management between the single battery cells.
The method comprises the steps of collecting a first operation parameter of the storage battery pack in a power supply loop of the charging device for a load and the storage battery pack through the total collection module, collecting a second operation parameter through the plurality of collection balancing modules corresponding to each single battery of the storage battery pack respectively, analyzing the operation state of the storage battery pack through the integrated controller based on the first operation parameter and the second operation parameter to obtain an analysis result, and carrying out charging management on the storage battery pack according to the analysis result. By adopting the technical means, the gap charging and the equalizing charging of the storage battery pack are realized through the charging management, so that the vulcanization degree of the storage battery is reduced, the charging and discharging of the storage battery pack are equalized, and the service life of the battery is further prolonged.
The intelligent gap charging management device for the storage battery provided by the second embodiment of the application can be used for executing the intelligent gap charging management method for the storage battery provided by the first embodiment of the application, and has corresponding functions and beneficial effects.
Example three:
embodiments of the present application also provide a storage medium containing computer-executable instructions, which when executed by a computer processor, are configured to perform a method for intelligent gap charging management of a storage battery, the method comprising: collecting first operation parameters of a storage battery pack in a power supply loop of a load and the storage battery pack through a total collection module, sending the first operation parameters to an integrated controller, collecting second operation parameters corresponding to each single battery of the storage battery pack through a plurality of collection balancing modules, and sending the second operation parameters to the integrated controller; the centralized controller receives the first operating parameter and the second operating parameter, and analyzes the operating state of the storage battery pack based on the first operating parameter and the second operating parameter to obtain an analysis result; and the integrated controller performs charging management on the storage battery pack according to the analysis result, wherein the charging management comprises sending a first control instruction to the charging device and/or the acquisition equalization module, controlling the charging device and/or the acquisition equalization module to perform gap charging on the whole storage battery pack or the single batteries, sending a second control instruction to the acquisition equalization module, and controlling the acquisition equalization module to perform equalization charging management among the single batteries.
Storage medium-any of various types of memory devices or storage devices. The term "storage medium" is intended to include: mounting media such as CD-ROM, floppy disk, or tape devices; computer system memory or random access memory such as DRAM, DDR RAM, SRAM, EDO RAM, Lanbas (Rambus) RAM, etc.; non-volatile memory such as flash memory, magnetic media (e.g., hard disk or optical storage); registers or other similar types of memory elements, etc. The storage medium may also include other types of memory or combinations thereof. In addition, the storage medium may be located in a first computer system in which the program is executed, or may be located in a different second computer system connected to the first computer system through a network (such as the internet). The second computer system may provide program instructions to the first computer for execution. The term "storage medium" may include two or more storage media residing in different locations, e.g., in different computer systems connected by a network. The storage medium may store program instructions (e.g., embodied as a computer program) that are executable by one or more processors.
Of course, the storage medium provided in the embodiments of the present application contains computer-executable instructions, and the computer-executable instructions are not limited to the above-mentioned method for managing intelligent clearance charging of a storage battery, and may also perform related operations in the method for managing intelligent clearance charging of a storage battery provided in any embodiments of the present application.
The intelligent gap charging management device, the storage medium and the electronic device for the storage battery provided in the above embodiments may execute the intelligent gap charging management method for the storage battery provided in any embodiment of the present application, and refer to the intelligent gap charging management method for the storage battery provided in any embodiment of the present application without detailed technical details described in the above embodiments.
The foregoing is considered as illustrative of the preferred embodiments of the invention and the technical principles employed. The present application is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present application has been described in more detail with reference to the above embodiments, the present application is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present application, and the scope of the present application is determined by the scope of the claims.
Claims (7)
1. An intelligent clearance charging management system for a storage battery, comprising: the system comprises an integrated controller, a total acquisition module, a plurality of acquisition balancing modules and a management background;
the main acquisition module is used for acquiring a first operation parameter of the storage battery pack in a power supply loop of the charging device to the load and the storage battery pack and sending the first operation parameter to the centralized controller;
each acquisition balancing module is used for acquiring a second operation parameter corresponding to a single battery of the storage battery pack and sending the second operation parameter to the centralized controller;
the centralized controller is configured to receive the first operating parameter and the second operating parameter, and analyze an operating state of the storage battery pack based on the first operating parameter and the second operating parameter, where the method includes calculating a balance degree between each single battery of the storage battery pack according to the first operating parameter and the second operating parameter, where the balance degree is used to indicate a voltage difference and an electric quantity difference between the single batteries, and a balance degree calculation formula is as follows:
h is the balance degree of the two single batteries, H1 and H2 respectively represent the balance values of the two single batteries, d1 is a voltage influence coefficient, d2 is an electric quantity influence coefficient, a1 and a2 are respectively the voltage values of the two single batteries, and b1 and b2 are respectively the electric quantity values of the two single batteries; inputting the first operating parameter and the second operating parameter into a preset storage battery running state analysis model, and outputting a corresponding running state analysis result, wherein the storage battery running state analysis model is constructed based on the historical operating parameters of the storage battery, and carries out charging management on the storage battery according to the analysis result, the charging management comprises sending a first control instruction to a charging device and/or the acquisition equalization module, controlling the charging device and/or the acquisition equalization module to carry out gap charging on the whole storage battery or a single battery, sending a second control instruction to the acquisition equalization module, and controlling the acquisition equalization module to carry out equalization charging management among the single batteries; wherein the gap charging includes charging in a pulse charging manner by setting a constant current as a charging current;
the management background is in signal connection with the integrated controller, receives the first operating parameters and the second operating parameters uploaded by the integrated controller, is used for performing remote monitoring, alarming and remote charging and discharging control on the storage battery pack, performs data analysis based on the first operating parameters, the second operating parameters and historical operating data of the storage battery pack, and evaluates the health state of each single battery of the storage battery pack.
2. The battery intelligent gap charge management system of claim 1, wherein the first operating parameters include battery pack voltage, current, and ambient temperature parameters; the second operation parameters comprise voltage, temperature, internal resistance, nuclear capacity and charging function parameters of the corresponding single battery.
3. An intelligent gap charging management method for a storage battery, which is applied to the intelligent gap charging management system for the storage battery according to any one of claims 1 and 2, and is characterized by comprising the following steps:
collecting first operation parameters of a storage battery pack in a power supply loop of a load and the storage battery pack through a total collection module, sending the first operation parameters to an integrated controller, collecting second operation parameters corresponding to each single battery of the storage battery pack through a plurality of collection balancing modules, and sending the second operation parameters to the integrated controller;
the centralized controller receives the first operating parameter and the second operating parameter, and performs storage battery pack operating state analysis based on the first operating parameter and the second operating parameter to obtain an analysis result, where the analysis result includes: calculating the balance degree among the single batteries of the storage battery pack according to the first operating parameter and the second operating parameter, wherein the balance degree is used for marking the voltage difference and the electric quantity difference among the single batteries, and the balance degree calculation formula is as follows:
h is the balance degree of the two single batteries, H1 and H2 respectively represent the balance values of the two single batteries, d1 is a voltage influence coefficient, d2 is an electric quantity influence coefficient, a1 and a2 are respectively the voltage values of the two single batteries, and b1 and b2 are respectively the electric quantity values of the two single batteries; inputting the first operating parameter and the second operating parameter into a preset storage battery running state analysis model, and outputting a corresponding running state analysis result, wherein the storage battery running state analysis model is constructed based on the storage battery historical operating parameters;
the centralized controller performs charging management on the storage battery pack according to the analysis result, wherein the charging management comprises sending a first control instruction to a charging device and/or the acquisition and equalization module, controlling the charging device and/or the acquisition and equalization module to perform gap charging on the whole storage battery pack or the single batteries, sending a second control instruction to the acquisition and equalization module, and controlling the acquisition and equalization module to perform equalization charging management among the single batteries, wherein the gap charging comprises setting a constant current as a charging current, and the charging current is charged in a pulse charging mode;
the management background is in signal connection with the centralized controller, receives the first operating parameter and the second operating parameter uploaded by the centralized controller, performs remote monitoring, alarming and remote charging and discharging control on the storage battery pack, performs data analysis based on the first operating parameter, the second operating parameter and historical operating data of the storage battery pack, and evaluates the health state of each single battery of the storage battery pack.
4. The intelligent clearance charging management method for the storage battery according to claim 3, wherein the centralized controller performs charging management on the storage battery pack according to the analysis result, and the method comprises the following steps:
when the whole storage battery pack or the single battery is determined to be in a predefined running state according to the running state analysis result, sending a first control instruction to a charging device and/or the acquisition balancing module;
and the charging device and/or the acquisition and equalization module responds to the first control instruction, starts a gap charging mode to supply power to the whole storage battery pack or the single battery, and performs pulse charging based on preset charging current in the gap charging mode, detects the battery voltage in the charging gap of the pulse charging until the battery voltage reaches a set voltage value, and exits the gap charging mode.
5. The intelligent gap charging management method for the storage battery according to claim 4, wherein the centralized controller performs charging management on the storage battery pack according to the analysis result, and the method comprises the following steps:
the centralized controller compares the balance degree with a preset balance degree standard value, and when the balance degree is greater than the balance degree standard value, a second control instruction is sent to the acquisition and balance module;
and the acquisition balancing module responds to the second control instruction and controls the appointed single batteries to carry out electric quantity transfer so as to enable the balance among the single batteries to be smaller than the standard value of the balance.
6. The utility model provides a battery intelligence clearance charge management device which characterized in that includes:
the acquisition module is used for acquiring first operating parameters of the storage battery pack in a power supply loop of the charging device to a load and the storage battery pack through the total acquisition module, transmitting the first operating parameters to the centralized controller, acquiring second operating parameters corresponding to each single battery of the storage battery pack through the plurality of acquisition balancing modules respectively, and transmitting the second operating parameters to the centralized controller; an analysis module, configured to receive, by the centralized controller, the first operating parameter and the second operating parameter, and perform analysis on an operating state of the storage battery pack based on the first operating parameter and the second operating parameter to obtain an analysis result, where the analysis module includes: calculating the balance degree among the single batteries of the storage battery pack according to the first operating parameter and the second operating parameter, wherein the balance degree is used for marking the voltage difference and the electric quantity difference among the single batteries, and the balance degree calculation formula is as follows:
h is the balance degree of the two single batteries, H1 and H2 respectively represent the balance values of the two single batteries, d1 is a voltage influence coefficient, d2 is an electric quantity influence coefficient, a1 and a2 are respectively the voltage values of the two single batteries, and b1 and b2 are respectively the electric quantity values of the two single batteries; inputting the first operating parameter and the second operating parameter into a preset storage battery operating state analysis model, and outputting a corresponding operating state analysis result, wherein the storage battery operating state analysis model is constructed on the basis of storage battery historical operating parameters;
a management module, configured to perform charge management on a storage battery pack according to the analysis result by the centralized controller, where the charge management includes sending a first control instruction to a charging device and/or the acquisition and equalization module, controlling the charging device and/or the acquisition and equalization module to perform gap charging on the entire storage battery pack or a single battery, sending a second control instruction to the acquisition and equalization module, and controlling the acquisition and equalization module to perform equalization charge management among the single batteries, where the gap charging includes setting a constant current as a charging current, the charging current is charged in a pulse charging manner, and a management background is in signal connection with the centralized controller and receives the first operating parameter and the second operating parameter uploaded by the centralized controller, and carrying out remote monitoring, alarming and remote charging and discharging control on the storage battery pack, carrying out data analysis based on the first operation parameter, the second operation parameter and the historical operation data of the storage battery pack, and evaluating the health state of each single battery of the storage battery pack.
7. A storage medium containing computer-executable instructions for performing the battery intelligent gap charging management method of any of claims 3-5 when executed by a computer processor.
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