CN116937632B - Light-storage integrated energy storage method, device, system and medium - Google Patents

Light-storage integrated energy storage method, device, system and medium Download PDF

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Publication number
CN116937632B
CN116937632B CN202311202471.6A CN202311202471A CN116937632B CN 116937632 B CN116937632 B CN 116937632B CN 202311202471 A CN202311202471 A CN 202311202471A CN 116937632 B CN116937632 B CN 116937632B
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energy storage
storage module
optimal
charging
upper limit
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CN116937632A (en
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吴海燕
栗永利
杨家伟
林红
许峰
谢吴成
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Guangdong Dejiu Solar New Energy Co ltd
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Guangdong Dejiu Solar New Energy Co ltd
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00—Circuit arrangements for ac mains or ac distribution networks
    • H02J3/28—Arrangements for balancing of the load in a network by storage of energy
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/44—Methods for charging or discharging
    • H01M10/441—Methods for charging or discharging for several batteries or cells simultaneously or sequentially
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00—Circuit arrangements for ac mains or ac distribution networks
    • H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
    • H02J3/381—Dispersed generators
    • 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
    • H02J2300/00—Systems for supplying or distributing electric power characterised by decentralized, dispersed, or local generation
    • H02J2300/20—The dispersed energy generation being of renewable origin
    • H02J2300/22—The renewable source being solar energy
    • H02J2300/24—The renewable source being solar energy of photovoltaic origin

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  • 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

The application discloses an energy storage method, device, system and medium integrating light and storage, wherein the method is applied to an energy storage system with at least three energy storage modules and comprises the following steps: acquiring the complete charge times and the complete discharge times of each energy storage module in a preset working period; acquiring an optimal charging frequency upper limit, an optimal charging frequency lower limit, an optimal discharging frequency upper limit and an optimal discharging frequency lower limit; screening a first target energy storage module, a second target energy storage module, a third target energy storage module and a fourth target energy storage module; and the charging threshold value of the first target energy storage module is adjusted to be high, the discharging threshold value of the second target energy storage module is adjusted to be high, the charging threshold value of the third target energy storage module is adjusted to be low, and the discharging threshold value of the fourth target energy storage module is adjusted to be low. The application can lead the charge and discharge times of the energy storage module in the working period to be more balanced. And the service efficiency of the energy storage module of the whole energy storage system is improved.

Description

Light-storage integrated energy storage method, device, system and medium
Technical Field
The application relates to the technical field of energy storage, in particular to an energy storage method, device, system and medium integrating light and storage.
Background
The photovoltaic power generation is a technology for directly converting light energy into electric energy by utilizing the photovoltaic effect of a semiconductor interface, and mainly comprises three parts of a solar panel (component), a controller and an inverter, wherein the main parts comprise electronic components, solar cells are packaged and protected after being connected in series to form a large-area solar cell component, and then the solar cell component is matched with the components such as a power controller and the like to form the photovoltaic power generation device.
The integrated photovoltaic power generation system comprises an energy storage system device such as an energy storage inverter and an energy storage battery, wherein the energy storage system device is arranged in the photovoltaic power generation system, so that the defects of intermittent photovoltaic power generation, large volatility and low adjustability are effectively overcome, the contradiction between power generation continuity and power utilization discontinuity is solved, and the stable operation of power on the power generation side, the power grid side and the user side is realized.
The existing energy storage system with integrated light storage generally comprises a plurality of energy storage modules, and the energy storage modules are used as energy storage bins. The photovoltaic energy is stored through the charging of the energy storage module, and the output of the photovoltaic energy is realized through the discharging of the energy storage module. In the existing control of the energy storage modules, it is found that the situation that the service lives of the individual energy storage modules are very short and the utilization rate of the whole energy storage modules is unbalanced easily exists. Therefore, how to make the energy storage module be used uniformly is a technical problem that needs to be solved in industry.
Disclosure of Invention
The application provides an integrated light and storage energy storage method, which solves one or more technical problems in the prior art and at least provides a beneficial selection or creation condition.
The application provides an energy storage method integrating light and storage, which is applied to an energy storage system with at least three energy storage modules and comprises the following steps:
step 1, acquiring the complete charge times and the complete discharge times of each energy storage module in a preset working period;
step 2, obtaining an optimal charging frequency upper limit, an optimal charging frequency lower limit, an optimal discharging frequency upper limit and an optimal discharging frequency lower limit;
step 3, screening out an energy storage module with complete charging times exceeding the preset upper limit of the optimal charging times, wherein the energy storage module is marked as a first target energy storage module;
step 4, screening out an energy storage module with complete discharge times exceeding the preset upper limit of the optimal discharge times, wherein the energy storage module is marked as a second target energy storage module;
step 5, screening out an energy storage module with complete charging times lower than a preset optimal charging times lower limit, wherein the energy storage module is marked as a third target energy storage module;
step 6, screening out an energy storage module with complete discharge times lower than a preset optimal discharge times lower limit, wherein the energy storage module is marked as a fourth target energy storage module;
step 7, the charging threshold of the first target energy storage module is adjusted to be high, the discharging threshold of the second target energy storage module is adjusted to be high, the charging threshold of the third target energy storage module is adjusted to be low, and the discharging threshold of the fourth target energy storage module is adjusted to be low;
the complete charging of the energy storage module refers to a rated energy storage value of which the single charging amount of the energy storage module exceeds a first value, the complete discharging of the energy storage module refers to a rated energy storage value of which the single discharging amount of the energy storage module exceeds a second value, the charging threshold of the energy storage module refers to a lowest energy storage value allowing the energy storage module to charge, and the discharging threshold of the energy storage module refers to a lowest energy storage value allowing the energy storage module to discharge.
Further, in step 2, the obtaining the upper limit of the optimal charging frequency, the lower limit of the optimal charging frequency, the upper limit of the optimal discharging frequency, and the lower limit of the optimal discharging frequency specifically includes: the method comprises the steps that the model of an energy storage module is sent to an external registration server, the registration server searches an optimal charging frequency upper limit, an optimal charging frequency lower limit, an optimal discharging frequency upper limit and an optimal discharging frequency lower limit corresponding to the energy storage module according to the model, and the optimal charging frequency upper limit, the optimal charging frequency lower limit, the optimal discharging frequency upper limit and the optimal discharging frequency lower limit are fed back.
Further, the first value ranges from 20% to 45%.
Further, the second value ranges from 20% to 45%.
In a second aspect, there is provided an optical storage integrated energy storage device, comprising: what memory the processor uses to store a computer readable program;
the computer readable program, when executed by the processor, causes the processor to implement the light and storage integrated energy storage method according to any one of the above technical solutions.
In a third aspect, an integrated optical storage energy storage system is provided, comprising: the device comprises a first acquisition module, a second acquisition module, a screening module and an adjustment module;
the first acquisition module is used for: acquiring the complete charge times and the complete discharge times of each energy storage module in a preset working period;
the second acquisition module is used for: acquiring an optimal charging frequency upper limit, an optimal charging frequency lower limit, an optimal discharging frequency upper limit and an optimal discharging frequency lower limit;
the screening module is used for: screening out an energy storage module with complete charging times exceeding the preset upper limit of the optimal charging times, wherein the energy storage module is marked as a first target energy storage module; screening out an energy storage module with complete discharge times exceeding the preset upper limit of the optimal discharge times, wherein the energy storage module is marked as a second target energy storage module; screening out an energy storage module with complete charging times lower than a preset optimal charging times lower limit, wherein the energy storage module is marked as a third target energy storage module; screening out an energy storage module with complete discharge times lower than a preset lower limit of the optimal discharge times, wherein the energy storage module is marked as a fourth target energy storage module;
the adjusting module is used for: the charging threshold value of the first target energy storage module is adjusted to be high, the discharging threshold value of the second target energy storage module is adjusted to be high, the charging threshold value of the third target energy storage module is adjusted to be low, and the discharging threshold value of the fourth target energy storage module is adjusted to be low;
the complete charging of the energy storage module refers to a rated energy storage value of which the single charging amount of the energy storage module exceeds a first value, the complete discharging of the energy storage module refers to a rated energy storage value of which the single discharging amount of the energy storage module exceeds a second value, the charging threshold of the energy storage module refers to a lowest energy storage value allowing the energy storage module to charge, and the discharging threshold of the energy storage module refers to a lowest energy storage value allowing the energy storage module to discharge.
Further, in the second obtaining module, the obtaining an upper limit of the optimal charging frequency, a lower limit of the optimal charging frequency, an upper limit of the optimal discharging frequency, and a lower limit of the optimal discharging frequency specifically includes: the method comprises the steps that the model of an energy storage module is sent to an external registration server, the registration server searches an optimal charging frequency upper limit, an optimal charging frequency lower limit, an optimal discharging frequency upper limit and an optimal discharging frequency lower limit corresponding to the energy storage module according to the model, and the optimal charging frequency upper limit, the optimal charging frequency lower limit, the optimal discharging frequency upper limit and the optimal discharging frequency lower limit are fed back.
Further, the first value ranges from 20% to 45%.
Further, the second value ranges from 20% to 45%.
In a fourth aspect, a computer readable storage medium is provided, in which a processor executable program is stored, the processor executable program being configured to implement the optical storage-integrated energy storage method according to any one of the above-mentioned aspects when executed by a processor.
The application has at least the following beneficial effects: according to the application, the complete charging frequency and the complete discharging frequency of the energy storage module are counted, and the charging threshold and the discharging threshold of the energy storage module are adjusted by combining the upper limit of the optimal charging frequency, the lower limit of the optimal charging frequency, the upper limit of the optimal discharging frequency and the lower limit of the optimal discharging frequency of the energy storage module. The charging and discharging times of the energy storage module in the working period are more balanced. And the service efficiency of the energy storage module of the whole energy storage system is improved. The application also discloses a corresponding device, a system and a medium. The advantages of the corresponding apparatus, system, and medium are the same as those of the method and will not be repeated here. The application is mainly used in the technical field of energy storage.
Drawings
The accompanying drawings are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate and do not limit the application.
FIG. 1 is a flow chart of the steps of an optical storage integrated energy storage method;
FIG. 2 is a schematic diagram of a light and storage integrated energy storage device;
fig. 3 is a schematic diagram of a system connection structure of an optical storage integrated energy storage system.
Detailed Description
The present application will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present application more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the application.
It should be noted that although functional block diagrams are depicted as block diagrams, and logical sequences are shown in the flowchart, in some cases, the steps shown or described may be performed in a different order than the block diagrams in the system. The terms first, second and the like in the description and in the claims and in the above-described figures, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.
Referring to fig. 1, fig. 1 is a flowchart illustrating a step of an integrated optical storage method;
the light-storage integrated energy storage method is mainly applied to an energy storage system with at least three energy storage modules. The energy of the energy storage system is derived from photovoltaic power generation. Each energy storage module is used as an independent energy storage unit in the energy storage system and is scheduled by the energy storage system.
The application mainly aims to solve the problem of unbalance of the existing energy storage module in the charging and discharging processes. In order to solve the technical problem, the application provides an integrated light and storage energy storage method which can be executed by intelligent equipment, and the implementation steps in the execution process are as follows:
step 1, obtaining the complete charge times and the complete discharge times of each energy storage module in a preset working period.
The intelligent equipment accesses the energy storage module regularly, and acquires the complete charge times and complete discharge times generated by the energy storage module in a preset working period of the energy storage module from the energy storage module. The complete discharge times refer to times when the single discharge amount of the energy storage module exceeds a rated energy storage value of the second value. The number of complete charging refers to the number of times that the single charge amount of the energy storage module exceeds the rated energy storage value of the first value.
The energy storage module can record the complete charge times and the complete discharge times generated in the working period, so that the intelligent equipment can obtain the corresponding complete charge times and complete discharge times by accessing the energy storage module.
After determining that the complete charge number and the complete discharge number are obtained, the intelligent device may enter step 2.
And 2, obtaining an upper limit of the optimal charging frequency, a lower limit of the optimal charging frequency, an upper limit of the optimal discharging frequency and a lower limit of the optimal discharging frequency.
The energy storage module is provided with an upper limit of optimal charging times, a lower limit of optimal charging times, an upper limit of optimal discharging times and a lower limit of optimal discharging times at the beginning of design.
The upper limit of the optimal charging times refers to an upper limit of the number of times the energy storage module expects to reach full charging in the working period.
The lower limit of the optimal charging times refers to a lower limit of the times of the energy storage module expecting to reach the complete charging in the working period.
The upper limit of the optimal discharge number refers to an upper limit of the number of complete discharges that the energy storage module expects to reach in a working period.
The lower limit of the optimal number of discharges refers to a lower limit of the number of complete discharges that the energy storage module expects to reach in a working cycle.
The intelligent device can pre-store the optimal upper limit, the optimal lower limit, the optimal upper limit and the optimal lower limit of the charging times of the energy storage modules with various types through the storage unit of the intelligent device. And determining an optimal charging frequency upper limit, an optimal charging frequency lower limit, an optimal discharging frequency upper limit and an optimal discharging frequency lower limit according to the model of the energy storage module. Of course, in order to reduce the operation burden of the intelligent device, the hardware resource requirement of the intelligent device is reduced. In some further embodiments, the smart device may be contacted by contacting an external registration server. The registration server is used for pre-recording the model of the energy storage module and the corresponding optimal upper limit, the optimal lower limit, the optimal upper limit and the optimal lower limit of the charging frequency. Therefore, the intelligent device can send the model of the energy storage module to the registration server and request the registration server to feed back the upper limit, the lower limit, the upper limit and the lower limit of the optimal charging times of the energy storage module corresponding to the model.
After receiving the model of the energy storage module, the registration server searches through a pre-database to find the upper limit, the lower limit, the upper limit and the lower limit of the optimal charging times, which correspond to the energy storage module of the model. And feeding back the upper limit of the optimal charging times, the lower limit of the optimal charging times, the upper limit of the optimal discharging times and the lower limit of the optimal discharging times to the intelligent equipment.
After the intelligent device confirms that the optimal charging frequency upper limit, the optimal charging frequency lower limit, the optimal discharging frequency upper limit and the optimal discharging frequency lower limit are received, the intelligent device can enter the steps 3, 4, 5 and 6. The steps 3, 4, 5 and 6 belong to parallel steps, and the execution sequence is not limited, and can be executed simultaneously or sequentially. For convenience of description, this embodiment is illustrated with step 3, step 4, step 5 and step 6 performed in this order.
And 3, screening out an energy storage module with complete charging times exceeding the preset upper limit of the optimal charging times, wherein the energy storage module is marked as a first target energy storage module.
The intelligent equipment can screen the obtained complete charging times corresponding to all the energy storage modules according to the corresponding optimal charging times upper limit, so that the energy storage modules with the complete charging times exceeding the preset optimal charging times upper limit are found. The energy storage module may be considered to be charged too many times during the operating cycle, requiring a reduced number of charges. In order to facilitate identification of the energy storage module, the energy storage module is denoted as a first target energy storage module.
Step 4, screening out an energy storage module with complete discharge times exceeding the preset upper limit of the optimal discharge times, wherein the energy storage module is marked as a second target energy storage module;
the intelligent equipment can screen the obtained complete discharge times corresponding to all the energy storage modules according to the corresponding upper limit of the optimal discharge times, so that the energy storage module with the complete discharge times exceeding the preset upper limit of the optimal discharge times is found. The energy storage module may be considered to discharge too many times in the operating period, requiring a reduction in its number of discharges. In order to facilitate identification of the energy storage module, the energy storage module is denoted as a second target energy storage module.
And 5, screening out an energy storage module with complete charging times lower than a preset optimal charging times lower limit, wherein the energy storage module is marked as a third target energy storage module.
The intelligent equipment can screen the obtained complete charging times corresponding to all the energy storage modules according to the corresponding optimal charging times lower limit, so that the energy storage modules with complete charging times lower than the preset optimal charging times lower limit are found. The energy storage module may be considered to be charged too little in the duty cycle and the number of charges needs to be increased. In order to facilitate identification of the energy storage module, the energy storage module is denoted as a third target energy storage module.
And step 6, screening out an energy storage module with complete discharge times lower than a preset lower limit of the optimal discharge times, wherein the energy storage module is marked as a fourth target energy storage module.
The intelligent equipment can screen the obtained complete discharge times corresponding to all the energy storage modules according to the corresponding lower limit of the optimal discharge times, so that the energy storage modules with the complete discharge times lower than the preset lower limit of the optimal discharge times are found. The energy storage module may be considered to be discharged too little in the operating cycle and the number of discharges may need to be increased. In order to facilitate identification of the energy storage module, the energy storage module is denoted as a fourth target energy storage module.
After determining the first target energy storage module, the second target energy storage module, the third target energy storage module and the fourth target energy storage module, the intelligent device may enter step 7. It should be noted that the first target energy storage module, the second target energy storage module, the third target energy storage module, or the fourth target energy storage module may be the same energy storage module, or may represent a plurality of energy storage modules.
And 7, adjusting the charging threshold of the first target energy storage module to be high, adjusting the discharging threshold of the second target energy storage module to be high, adjusting the charging threshold of the third target energy storage module to be low, and adjusting the discharging threshold of the fourth target energy storage module to be low.
The charging threshold value of the energy storage module refers to the lowest energy storage value allowing the energy storage module to charge, and the discharging threshold value of the energy storage module refers to the lowest energy storage value allowing the energy storage module to discharge.
The intelligent device may set the first target energy storage module to raise a charging threshold of the first target energy storage module. After the charging threshold of the first target energy storage module is adjusted to be high, the condition for allowing single charging is improved, so that the charging times of the first target energy storage module are reduced.
The intelligent device may set the second target energy storage module to raise a discharge threshold of the second target energy storage module. After the discharge threshold of the second target energy storage module is adjusted to be high, the condition for allowing single discharge is improved, so that the discharge times of the second target energy storage module are reduced.
The intelligent device sets the third target energy storage module to lower the charging threshold of the third target energy storage module, and after the charging threshold of the third target energy storage module is lowered, the condition that the intelligent device is allowed to charge for a single time is lowered, so that the charging times of the third target energy storage module are improved.
The intelligent device sets the fourth target energy storage module to lower the discharge threshold of the fourth target energy storage module, and after the discharge threshold of the fourth target energy storage module is lowered, the condition that the fourth target energy storage module is allowed to perform single discharge is lowered, so that the number of times of discharge of the fourth target energy storage module is increased.
According to the application, the complete charging frequency and the complete discharging frequency of the energy storage module are counted, and the charging threshold and the discharging threshold of the energy storage module are adjusted by combining the upper limit of the optimal charging frequency, the lower limit of the optimal charging frequency, the upper limit of the optimal discharging frequency and the lower limit of the optimal discharging frequency of the energy storage module. The charging and discharging times of the energy storage module in the working period are more balanced. And the service efficiency of the energy storage module of the whole energy storage system is improved.
The light-storage integrated energy storage method further comprises the following steps: an electric energy rectifying and charging step, wherein the electric energy rectifying and charging step comprises the following steps: and after the energy storage module reaches the charging threshold value, continuously charging the energy storage module for a single time so as to enable the energy storage module to be full of electric energy. In some further embodiments, the priority of each energy storage module is assigned to determine the sequence of charging each energy storage module in the electric energy charging step. The energy storage modules with high priority are charged firstly, and the energy storage modules with low priority are charged later. The allocation of the priority is specifically: and sequencing according to the acquired complete charging times of the energy storage modules, and distributing priorities based on the number of the complete charging times. The fewer the number of complete charging, the higher the priority of the complete charging, and conversely, the lower the priority.
The charging effectiveness of the energy storage module can be improved through the electric energy charging step, and the service life of the energy storage module is prolonged. Furthermore, by setting the priority, the number of times of charging of the plurality of energy storage modules can be further equalized.
The limit value of the first value is determined by the self-attribute of the energy storage module, and in some further embodiments, the value of the first value ranges from 20% to 45%. The limiting value of the second value is determined by the self-attribute of the energy storage module, and in some further embodiments, the limiting value of the second value ranges from 20% to 45%.
In a second aspect, referring to fig. 2, fig. 2 is a schematic structural diagram of an optical storage integrated energy storage device.
Provided is an optical storage integrated energy storage device, comprising: a processor and a memory, wherein the memory is for storing a computer readable program; the computer readable program, when executed by the processor, causes the processor to implement the light storage integrated energy storage method as described in any one of the above specific embodiments.
Those of ordinary skill in the art will appreciate that all or some of the steps, systems, and methods disclosed above may be implemented as software, firmware, hardware, and suitable combinations thereof. Some or all of the physical components may be implemented as software executed by a processor, such as a central processing unit, digital signal processor, or microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit. Such software may be distributed on computer readable media, which may include computer storage media (or non-transitory media) and communication media (or transitory media). The term computer storage media includes both volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data, as known to those skilled in the art. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital Versatile Disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium which can be used to store the desired information and which can be accessed by a computer. Communication media typically embodies computer readable instructions, data structures, program modules or other data in a modulated data signal such as a carrier wave or other transport mechanism and includes any information delivery media as is known to one of ordinary skill in the art.
In a third aspect, referring to fig. 3, fig. 3 is a schematic system connection structure of an optical storage integrated energy storage system.
There is provided an optical storage integrated energy storage system, comprising: the device comprises a first acquisition module, a second acquisition module, a screening module and an adjustment module;
the first acquisition module is used for: and acquiring the complete charge times and the complete discharge times of each energy storage module in a preset working period.
The first acquisition module accesses the energy storage module regularly, and acquires the complete charge times and complete discharge times generated by the energy storage module in a preset working period of the energy storage module from the energy storage module. The complete discharge times refer to times when the single discharge amount of the energy storage module exceeds a rated energy storage value of the second value. The number of complete charging refers to the number of times that the single charge amount of the energy storage module exceeds the rated energy storage value of the first value.
The energy storage module can record the complete charge times and the complete discharge times generated in the working period, so that the intelligent equipment can obtain the corresponding complete charge times and complete discharge times by accessing the energy storage module.
The second acquisition module is used for: and obtaining an upper limit of the optimal charging frequency, a lower limit of the optimal charging frequency, an upper limit of the optimal discharging frequency and a lower limit of the optimal discharging frequency.
The energy storage module is provided with an upper limit of optimal charging times, a lower limit of optimal charging times, an upper limit of optimal discharging times and a lower limit of optimal discharging times at the beginning of design.
The upper limit of the optimal charging times refers to an upper limit of the number of times the energy storage module expects to reach full charging in the working period.
The lower limit of the optimal charging times refers to a lower limit of the times of the energy storage module expecting to reach the complete charging in the working period.
The upper limit of the optimal discharge number refers to an upper limit of the number of complete discharges that the energy storage module expects to reach in a working period.
The lower limit of the optimal number of discharges refers to a lower limit of the number of complete discharges that the energy storage module expects to reach in a working cycle.
The second obtaining module can pre-store the upper limit, the lower limit, the upper limit and the lower limit of the optimal charging times, of the energy storage modules with various types through the storage unit of the second obtaining module. And determining an optimal charging frequency upper limit, an optimal charging frequency lower limit, an optimal discharging frequency upper limit and an optimal discharging frequency lower limit according to the model of the energy storage module. Of course, in order to reduce the operation burden of the second acquisition module, the hardware resource requirement of the second acquisition module is reduced. In some further embodiments, the second acquisition module may be contacted by an external registration server. The registration server is used for pre-recording the model of the energy storage module and the corresponding optimal upper limit, the optimal lower limit, the optimal upper limit and the optimal lower limit of the charging frequency. Therefore, the second acquisition module can send the model of the energy storage module to the registration server, and request the registration server to feed back the upper limit of the optimal charging frequency, the lower limit of the optimal charging frequency, the upper limit of the optimal discharging frequency and the lower limit of the optimal discharging frequency of the energy storage module corresponding to the model.
After receiving the model of the energy storage module, the registration server searches through a pre-database to find the upper limit, the lower limit, the upper limit and the lower limit of the optimal charging times, which correspond to the energy storage module of the model. And feeding back the upper limit of the optimal charging times, the lower limit of the optimal charging times, the upper limit of the optimal discharging times and the lower limit of the optimal discharging times to the second acquisition module.
The screening module is used for: screening out an energy storage module with complete charging times exceeding the preset upper limit of the optimal charging times, wherein the energy storage module is marked as a first target energy storage module; screening out an energy storage module with complete discharge times exceeding the preset upper limit of the optimal discharge times, wherein the energy storage module is marked as a second target energy storage module; screening out an energy storage module with complete charging times lower than a preset optimal charging times lower limit, wherein the energy storage module is marked as a third target energy storage module; and screening out an energy storage module with complete discharge times lower than the preset lower limit of the optimal discharge times, wherein the energy storage module is marked as a fourth target energy storage module.
The screening module screens the obtained complete charging times corresponding to all the energy storage modules according to the corresponding optimal charging times upper limit, so that the energy storage module with the complete charging times exceeding the preset optimal charging times upper limit is found. The energy storage module may be considered to be charged too many times during the operating cycle, requiring a reduced number of charges. In order to facilitate identification of the energy storage module, the energy storage module is denoted as a first target energy storage module.
The screening module screens the obtained complete discharge times corresponding to all the energy storage modules according to the corresponding upper limit of the optimal discharge times, so that the energy storage module with the complete discharge times exceeding the preset upper limit of the optimal discharge times is found. The energy storage module may be considered to discharge too many times in the operating period, requiring a reduction in its number of discharges. In order to facilitate identification of the energy storage module, the energy storage module is denoted as a second target energy storage module.
The screening module screens the obtained complete charging times corresponding to all the energy storage modules according to the corresponding optimal charging times lower limit, so that the energy storage module with the complete charging times lower than the preset optimal charging times lower limit is found. The energy storage module may be considered to be charged too little in the duty cycle and the number of charges needs to be increased. In order to facilitate identification of the energy storage module, the energy storage module is denoted as a third target energy storage module.
The screening module screens the obtained complete charging times corresponding to all the energy storage modules according to the corresponding optimal charging times lower limit, so that the energy storage module with the complete charging times lower than the preset optimal charging times lower limit is found. The energy storage module may be considered to be charged too little in the duty cycle and the number of charges needs to be increased. In order to facilitate identification of the energy storage module, the energy storage module is denoted as a third target energy storage module.
The adjusting module is used for: and the charging threshold value of the first target energy storage module is adjusted to be high, the discharging threshold value of the second target energy storage module is adjusted to be high, the charging threshold value of the third target energy storage module is adjusted to be low, and the discharging threshold value of the fourth target energy storage module is adjusted to be low.
The charging threshold value of the energy storage module refers to the lowest energy storage value allowing the energy storage module to charge, and the discharging threshold value of the energy storage module refers to the lowest energy storage value allowing the energy storage module to discharge.
The adjustment module may set the first target energy storage module to raise a charging threshold of the first target energy storage module. After the charging threshold of the first target energy storage module is adjusted to be high, the condition for allowing single charging is improved, so that the charging times of the first target energy storage module are reduced.
The adjusting module can set the second target energy storage module so as to adjust the discharge threshold of the second target energy storage module. After the discharge threshold of the second target energy storage module is adjusted to be high, the condition for allowing single discharge is improved, so that the discharge times of the second target energy storage module are reduced.
The adjusting module sets the third target energy storage module to lower the charging threshold of the third target energy storage module, and after the charging threshold of the third target energy storage module is lowered, the condition that the third target energy storage module is allowed to be charged for a single time is lowered, so that the charging times of the third target energy storage module are improved.
The adjusting module sets the fourth target energy storage module to reduce the discharge threshold of the fourth target energy storage module, and after the discharge threshold of the fourth target energy storage module is reduced, the condition that the fourth target energy storage module is allowed to perform single discharge is reduced, so that the number of times of discharge of the fourth target energy storage module is increased.
This integrative energy storage system of light storage still includes: the electric energy is full, and the module is used for: and after the energy storage module reaches the charging threshold value, continuously charging the energy storage module for a single time so as to enable the energy storage module to be full of electric energy. In some further embodiments, the priority of each energy storage module is allocated to determine the sequence of charging each energy storage module by the electric energy charging module. The energy storage modules with high priority are charged firstly, and the energy storage modules with low priority are charged later. The allocation of the priority is specifically: and sequencing according to the acquired complete charging times of the energy storage modules, and distributing priorities based on the number of the complete charging times, wherein the lower the complete charging times are, the higher the priorities are, and otherwise, the lower the priorities are.
The charging effectiveness of the energy storage module can be improved through the electric energy charging module, and the service life of the energy storage module is prolonged. Furthermore, by setting the priority, the number of times of charging of the plurality of energy storage modules can be further equalized.
In a fourth aspect, a computer readable storage medium is provided, in which a processor executable program is stored, the processor executable program being configured to implement the optical storage-integrated energy storage method according to any one of the above specific embodiments when executed by a processor.
The embodiment of the application also discloses a computer program product, which comprises a computer program or computer instructions, wherein the computer program or the computer instructions are stored in a computer readable storage medium, the computer program or the computer instructions are read from the computer readable storage medium by a processor of a computer device, and the computer program or the computer instructions are executed by the processor, so that the computer device executes the light storage integrated energy storage method in any embodiment.
The terms "first," "second," "third," "fourth," and the like in the description of the application and in the above figures, if any, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the application described herein may be implemented, for example, in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed or inherent to such process, method, article, or apparatus.
It should be understood that in the present application, "at least one (item)" means one or more, and "a plurality" means two or more. "and/or" for describing the association relationship of the association object, the representation may have three relationships, for example, "a and/or B" may represent: only a, only B and both a and B are present, wherein a, B may be singular or plural. The character "/" generally indicates that the context-dependent object is an "or" relationship. "at least one of" or the like means any combination of these items, including any combination of single item(s) or plural items(s). For example, at least one (one) of a, b or c may represent: a, b, c, "a and b", "a and c", "b and c", or "a and b and c", wherein a, b, c may be single or plural.
In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other manners. For example, the apparatus embodiments described above are merely illustrative, e.g., the division of the units is merely a logical function division, and there may be additional divisions when actually implemented, e.g., multiple units or components may be combined or integrated into another system, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices, or units, which may be in electrical, mechanical, or other forms.
The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
In addition, each functional unit in the embodiments of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.
The integrated units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application may be embodied essentially or in part or all of the technical solution or in part in the form of a software product stored in a storage medium, including instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a magnetic disk, or an optical disk, or other various media capable of storing program codes.
While the present application has been described in considerable detail and with particularity with respect to several described embodiments, it is not intended to be limited to any such detail or embodiments or any particular embodiment, but is to be considered as providing a broad interpretation of such claims by reference to the appended claims in light of the prior art and thus effectively covering the intended scope of the application. Furthermore, the foregoing description of the application has been presented in its embodiments contemplated by the inventors for the purpose of providing a useful description, and for the purposes of providing a non-essential modification of the application that may not be presently contemplated, may represent an equivalent modification of the application.

Claims (10)

1. An integrated light and storage energy storage method is applied to an energy storage system with at least three energy storage modules, and is characterized by comprising the following steps:
step 1, acquiring the complete charge times and the complete discharge times of each energy storage module in a preset working period;
step 2, obtaining an optimal charging frequency upper limit, an optimal charging frequency lower limit, an optimal discharging frequency upper limit and an optimal discharging frequency lower limit;
step 3, screening out an energy storage module with complete charging times exceeding the preset upper limit of the optimal charging times, wherein the energy storage module is marked as a first target energy storage module;
step 4, screening out an energy storage module with complete discharge times exceeding the preset upper limit of the optimal discharge times, wherein the energy storage module is marked as a second target energy storage module;
step 5, screening out an energy storage module with complete charging times lower than a preset optimal charging times lower limit, wherein the energy storage module is marked as a third target energy storage module;
step 6, screening out an energy storage module with complete discharge times lower than a preset optimal discharge times lower limit, wherein the energy storage module is marked as a fourth target energy storage module;
step 7, the charging threshold of the first target energy storage module is adjusted to be high, the discharging threshold of the second target energy storage module is adjusted to be high, the charging threshold of the third target energy storage module is adjusted to be low, and the discharging threshold of the fourth target energy storage module is adjusted to be low;
the complete charging of the energy storage module refers to a rated energy storage value of which the single charging amount of the energy storage module exceeds a first value, the complete discharging of the energy storage module refers to a rated energy storage value of which the single discharging amount of the energy storage module exceeds a second value, the charging threshold of the energy storage module refers to a lowest energy storage value allowing the energy storage module to charge, and the discharging threshold of the energy storage module refers to a lowest energy storage value allowing the energy storage module to discharge.
2. The method of claim 1, wherein in step 2, the obtaining the upper limit of the optimal charge number, the lower limit of the optimal charge number, the upper limit of the optimal discharge number, and the lower limit of the optimal discharge number specifically includes: the method comprises the steps that the model of an energy storage module is sent to an external registration server, the registration server searches an optimal charging frequency upper limit, an optimal charging frequency lower limit, an optimal discharging frequency upper limit and an optimal discharging frequency lower limit corresponding to the energy storage module according to the model, and the optimal charging frequency upper limit, the optimal charging frequency lower limit, the optimal discharging frequency upper limit and the optimal discharging frequency lower limit are fed back.
3. The method of claim 1, wherein the first value ranges from 20% to 45%.
4. The method of claim 1, wherein the second value ranges from 20% to 45%.
5. An optical storage integrated energy storage device, comprising:
a processor;
a memory for storing a computer readable program;
the computer readable program, when executed by the processor, causes the processor to implement the light and storage integrated energy storage method of any one of claims 1-4.
6. An optical storage integrated energy storage system, comprising: the device comprises a first acquisition module, a second acquisition module, a screening module and an adjustment module;
the first acquisition module is used for: acquiring the complete charge times and the complete discharge times of each energy storage module in a preset working period;
the second acquisition module is used for: acquiring an optimal charging frequency upper limit, an optimal charging frequency lower limit, an optimal discharging frequency upper limit and an optimal discharging frequency lower limit;
the screening module is used for: screening out an energy storage module with complete charging times exceeding the preset upper limit of the optimal charging times, wherein the energy storage module is marked as a first target energy storage module; screening out an energy storage module with complete discharge times exceeding the preset upper limit of the optimal discharge times, wherein the energy storage module is marked as a second target energy storage module; screening out an energy storage module with complete charging times lower than a preset optimal charging times lower limit, wherein the energy storage module is marked as a third target energy storage module; screening out an energy storage module with complete discharge times lower than a preset lower limit of the optimal discharge times, wherein the energy storage module is marked as a fourth target energy storage module;
the adjusting module is used for: the charging threshold value of the first target energy storage module is adjusted to be high, the discharging threshold value of the second target energy storage module is adjusted to be high, the charging threshold value of the third target energy storage module is adjusted to be low, and the discharging threshold value of the fourth target energy storage module is adjusted to be low;
the complete charging of the energy storage module refers to a rated energy storage value of which the single charging amount of the energy storage module exceeds a first value, the complete discharging of the energy storage module refers to a rated energy storage value of which the single discharging amount of the energy storage module exceeds a second value, the charging threshold of the energy storage module refers to a lowest energy storage value allowing the energy storage module to charge, and the discharging threshold of the energy storage module refers to a lowest energy storage value allowing the energy storage module to discharge.
7. The integrated optical storage and storage energy storage system according to claim 6, wherein in the second obtaining module, the obtaining the upper limit of the optimal charging frequency, the lower limit of the optimal charging frequency, the upper limit of the optimal discharging frequency, and the lower limit of the optimal discharging frequency specifically includes: the method comprises the steps that the model of an energy storage module is sent to an external registration server, the registration server searches an optimal charging frequency upper limit, an optimal charging frequency lower limit, an optimal discharging frequency upper limit and an optimal discharging frequency lower limit corresponding to the energy storage module according to the model, and the optimal charging frequency upper limit, the optimal charging frequency lower limit, the optimal discharging frequency upper limit and the optimal discharging frequency lower limit are fed back.
8. A light and storage integrated energy storage system as in claim 6 wherein said first value is in the range of 20% to 45%.
9. A light and storage integrated energy storage system as in claim 6 wherein said second value ranges from 20% to 45%.
10. A computer readable storage medium, in which a processor executable program is stored, which when executed by a processor is adapted to implement the optical storage integrated energy storage method of any one of claims 1-4.
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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017161786A1 (en) * 2016-03-23 2017-09-28 严利容 Optical storage system operation optimization-based hybrid energy storage ratio calculation method
CN111224415A (en) * 2020-02-13 2020-06-02 科华恒盛股份有限公司 Energy storage method, device and system of energy storage system and computer readable storage medium
WO2022222529A1 (en) * 2021-04-23 2022-10-27 西安领充创享新能源科技有限公司 Method and apparatus for controlling optical storage off-grid system, controller and storage medium
WO2023093097A1 (en) * 2021-11-29 2023-06-01 珠海格力电器股份有限公司 Photovoltaic energy storage electric system, and three-phase load power control method, apparatus and device therefor
CN116245304A (en) * 2022-12-29 2023-06-09 南方电网产业投资集团有限责任公司 Optical storage charging power scheduling method and device, electronic equipment and storage medium

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017161786A1 (en) * 2016-03-23 2017-09-28 严利容 Optical storage system operation optimization-based hybrid energy storage ratio calculation method
CN111224415A (en) * 2020-02-13 2020-06-02 科华恒盛股份有限公司 Energy storage method, device and system of energy storage system and computer readable storage medium
WO2022222529A1 (en) * 2021-04-23 2022-10-27 西安领充创享新能源科技有限公司 Method and apparatus for controlling optical storage off-grid system, controller and storage medium
WO2023093097A1 (en) * 2021-11-29 2023-06-01 珠海格力电器股份有限公司 Photovoltaic energy storage electric system, and three-phase load power control method, apparatus and device therefor
CN116245304A (en) * 2022-12-29 2023-06-09 南方电网产业投资集团有限责任公司 Optical storage charging power scheduling method and device, electronic equipment and storage medium

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