CN109245264B - Power storage management method, power storage system, computer device, and readable storage medium - Google Patents
Power storage management method, power storage system, computer device, and readable storage medium Download PDFInfo
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- 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
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/35—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering with light sensitive cells
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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- Y02E10/56—Power conversion systems, e.g. maximum power point trackers
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Abstract
The application belongs to the technical field of photovoltaic, and relates to an electric power storage management method, which is used for managing electric power storage of a photovoltaic sharing electric power storage system, wherein the photovoltaic sharing electric power storage system comprises a photovoltaic module and a plurality of electric power storage devices, the photovoltaic module is used for storing electric power to the plurality of electric power storage devices, and the method comprises the steps of obtaining current output electric energy of the photovoltaic module; acquiring the current electric quantity of each electric storage device; and controlling and managing the turning-on or turning-off of a plurality of electric storage devices according to the current output electric energy of the photovoltaic module and the current electric quantity of each electric storage device, so that the number of the electric storage devices turning on the electric storage is matched with the change of the current output electric energy of the photovoltaic module. The method provided by the embodiment of the application improves the power storage efficiency of the photovoltaic sharing power storage system, and further improves the energy utilization rate.
Description
Technical Field
The present application relates to the field of photovoltaic technologies, and in particular, to a power storage management method, a power storage system, a computer device, and a readable storage medium.
Background
With the development and progress of society, shared power storage systems are also gradually appearing in the field of vision of people. The shared power storage system is used for charging a plurality of power storage devices for sharing and use. Meanwhile, with the development of the solar power generation industry, people apply photovoltaic power generation to a shared power storage system to form the photovoltaic shared power storage system. When the photovoltaic power supply system is used, it is necessary to manage the power storage of the power storage device.
In the conventional technology, when a photovoltaic shared power storage system is subjected to power storage management, all power storage devices are often subjected to power storage at the same time. However, such a power storage management method has a problem of poor power storage efficiency.
Disclosure of Invention
In view of the above, it is necessary to provide a power storage management method, a power storage system, a computer device, and a readable storage medium, which address the problem of poor power storage efficiency.
An electricity storage management method for managing electricity storage of a photovoltaic shared electricity storage system including a photovoltaic module for storing electricity to a plurality of electricity storage devices, and the plurality of electricity storage devices, the method comprising:
acquiring current output electric energy of the photovoltaic module;
acquiring the current electric quantity of each electric storage device;
and controlling and managing the turning-on or turning-off of a plurality of electric storage devices according to the current output electric energy of the photovoltaic module and the current electric quantity of each electric storage device, so that the number of the electric storage devices turning on the electric storage is matched with the change of the current output electric energy of the photovoltaic module.
In one embodiment, the controlling and managing the turning on or off of a plurality of the electrical storage devices according to the current output power of the photovoltaic module and the current capacity of each electrical storage device so that the number of the electrical storage devices turning on the electrical storage matches the change of the current output power of the photovoltaic module includes:
sorting the power storage devices which do not reach the rated power according to the current power of each power storage device to generate a power sequence table;
determining a management scheme for carrying out power storage on or off on a plurality of power storage devices according to the current output electric energy of the photovoltaic module and the electric quantity sequence table;
managing a plurality of the electrical storage devices according to the management scheme.
In one embodiment, the sorting the power storage devices which do not reach the rated power according to the current power of each power storage device, and the generating the power sequence list includes:
searching and rejecting the power storage devices meeting rated power according to the current power of each power storage device, and determining the power storage devices not meeting the rated power;
and sequencing the electric power storage devices which do not reach the rated electric quantity to generate an electric quantity sequence table.
In one embodiment, the sorting the power storage devices which do not reach the rated power according to the current power of each power storage device, and the generating the power sequence list specifically includes:
and according to the current electric quantity of each electric storage device, performing descending sorting on the plurality of electric storage devices which do not reach the rated electric quantity to generate an electric quantity descending sequence list.
In one embodiment, the determining a management scheme for turning on or off the power storage of the plurality of power storage devices according to the current output electric energy of the photovoltaic module and the electric quantity sequence table comprises:
determining the output electric energy grade of the photovoltaic module according to the current output electric energy of the photovoltaic module;
and determining the electric storage devices which are charged in the electric energy descending order list and the electric storage devices which are charged in the electric energy descending order list according to the output electric energy grade, and forming the management scheme.
In one embodiment, the management scheme comprises:
and turning on the power storage devices with the sequence less than or equal to a preset threshold value in the power descending sequence table, and turning off the power storage devices with the sequence greater than the preset threshold value in the power descending sequence table.
In one embodiment, the obtaining the current output electric energy of the photovoltaic module includes:
acquiring the current output power of the photovoltaic module;
obtaining rated output power of the photovoltaic module;
and calculating the output power percentage of the photovoltaic module according to the current output power of the photovoltaic module and the rated output power of the photovoltaic module to obtain the current output electric energy of the photovoltaic module.
According to the power storage management method provided by the embodiment of the application, the current output electric energy of the photovoltaic module and the current electric quantity of each power storage device are obtained, and the on or off of the plurality of power storage devices is controlled and managed according to the current output electric energy of the photovoltaic module and the current electric quantity of each power storage device, so that the number of the power storage devices on for power storage is matched with the change of the current output electric energy of the photovoltaic module. According to the method provided by the embodiment of the application, the charging of the electric storage device is matched with the current output electric energy of the photovoltaic module, so that the limited output electric energy can be rapidly and effectively charged to the electric storage device, the electric storage efficiency of the photovoltaic sharing electric storage system is improved, and the energy utilization rate is further improved.
A photovoltaic shared power storage system comprising a photovoltaic module, a plurality of power storage devices, and a power storage management device, wherein the power storage management device comprises:
the first acquisition module is used for acquiring the current output electric energy of the photovoltaic module;
the second acquisition module is used for acquiring the current electric quantity of each electric storage device;
and the control management module is used for controlling and managing the turning-on or turning-off of a plurality of electric storage devices according to the current output electric energy of the photovoltaic module and the current electric quantity of each electric storage device, so that the number of the electric storage devices for turning on electric storage is matched with the change of the current output electric energy of the photovoltaic module.
A computer device comprising a memory storing a computer program and a processor implementing the steps of the method as described above when executing the computer program.
A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the method as set forth above.
According to the photovoltaic shared power storage system, the computer device and the computer readable storage medium provided by the embodiment of the application, the number of the power storage devices for starting power storage is matched with the change of the current output power of the photovoltaic module by acquiring the current output power of the photovoltaic module and the current electric quantity of each power storage device and controlling and managing the starting or the closing of the plurality of power storage devices according to the current output power of the photovoltaic module and the current electric quantity of each power storage device. The photovoltaic sharing power storage system, the computer equipment and the computer readable storage medium provided by the embodiment of the application enable the charging of the power storage device to be matched with the current output electric energy of the photovoltaic module, so that the limited output electric energy can be rapidly and effectively charged to the power storage device, the power storage efficiency of the photovoltaic sharing power storage system is improved, and the energy utilization rate is further improved.
Drawings
FIG. 1 is a schematic structural diagram of a photovoltaic shared power storage system provided in an embodiment of the present application;
FIG. 2 is a schematic flow chart illustrating a power storage management method according to an embodiment of the present application;
FIG. 3 is a schematic flow chart illustrating a power storage management method according to an embodiment of the present application;
FIG. 4 is a schematic flow chart illustrating a power storage management method according to an embodiment of the present application;
FIG. 5 is a schematic flow chart illustrating a power storage management method according to an embodiment of the present application;
FIG. 6 is a schematic flow chart illustrating a power storage management method according to an embodiment of the present application;
fig. 7 is a schematic structural diagram of a power storage management device according to an embodiment of the present application.
Description of the reference numerals
Photovoltaic shared power storage system 10
Power storage management device 300
First obtaining module 310
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the power storage management method, the power storage system, the computer device and the readable storage medium of the present application are further described in detail by the embodiments in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
Referring to fig. 1, the power storage management method provided in the embodiment of the present application may be used for managing power storage of the photovoltaic sharing power storage system 10. As shown in fig. 1, the photovoltaic shared power storage system 10 includes a photovoltaic module 100, a plurality of power storage devices 200, and a power storage management device 300. Wherein a plurality of the electricity storage devices 200 are connected to the photovoltaic module 100 through the electricity storage management device 300.
The photovoltaic module 100 is used to convert light energy into electrical energy. The photovoltaic module 100 may be a crystalline silicon solar cell, a gallium arsenide solar cell, or a thin film solar cell. The power storage device 200 may be a storage battery, for example, a lithium ion battery. The number of the electricity storage devices 200 is 2 or more than 2. The electricity storage management device 300 is connected to the photovoltaic module 100 and the plurality of electricity storage devices 200. The electrical storage management device 300 is configured to receive output electrical energy of the photovoltaic module 100 and distribute the electrical energy to charge the plurality of electrical storage devices 200. The electricity storage management device 300 can acquire the output electric energy of the photovoltaic module 100 and the electric quantity of each of the electricity storage devices 200. The electricity storage management device 300 can control turning on and off of electricity storage of the electricity storage device 200, and the like. The electricity storage management device 300 may include a hardware circuit or may include a software program. For example, the electricity storage management device 300 may include a single chip microcomputer capable of executing a program and a peripheral circuit thereof. The present application does not set any limit to the specific structures, types, and the like of the photovoltaic module 100, the electrical storage device 200, and the electrical storage management device 300 as long as the functions thereof can be achieved.
Referring to fig. 2, an embodiment of the present application provides a power storage management method, including the following steps:
and S10, acquiring the current output electric energy of the photovoltaic module 100.
The electrical storage management device 300 can acquire the output electric energy of the photovoltaic module 100 at regular time. For example, the electricity storage management device 300 may obtain the output electric energy of the photovoltaic module 100 every 30 minutes. The current output power of the photovoltaic module is used to characterize the ability of the photovoltaic module 100 to convert light energy into electrical power at the current time. The power generation capacity of the photovoltaic module 100 is dynamically varied. With the change of weather, illumination time period, illumination angle, longitude and latitude positions, the photovoltaic module 100 has different power generation capacity and different output electric energy. The current output power of the photovoltaic module 100 can be characterized by the intensity of solar illumination, the output voltage, current, power, or other parameters. The obtained current output electric energy parameter form of the photovoltaic module 100 is not limited at all, and the photovoltaic module 100 can be represented only by the power generation capacity.
S20, the current electric quantity of each of the electric storage devices 200 is acquired.
The power amount condition of each of the power storage devices 200 is acquired by the power storage management device 300. The current electric quantity of the electrical storage device 200 is whether the internal charge quantity of the electrical storage device 200 reaches the nominal capacity at the current moment, and whether the voltage reaches the nominal voltage. The electric quantity of the electric storage device 200 can be represented by the voltage of the electric storage device 200 and related parameters, or by the electric charge quantity of the electric storage device 200 and related parameters. The electricity storage management device 300 may detect the current amount of electricity of the electricity storage device 200 by a voltage detector, or may detect the current amount of electricity of the electricity storage device 200 by a coulomb counter.
S30, controlling and managing the turning on or off of a plurality of the electricity storage devices 200 according to the current output power of the photovoltaic module 100 and the current power of each of the electricity storage devices 200, so that the number of the electricity storage devices 200 turning on the electricity storage matches the variation of the current output power of the photovoltaic module 100.
The electrical storage management device 300 determines a control management scheme for a plurality of the electrical storage devices 200 according to a preset algorithm. The control management scheme may include turning on several of the electrical storage devices 200, and turning off several of the electrical storage devices 200. The charging method is characterized by charging which power storage device 200 of the plurality of power storage devices 200 is turned on, and charging which power storage device 200 is turned off and stopped. The electrical storage management device 300 controls the plurality of electrical storage devices 200 according to the control management scheme so that the number of electrical storage devices 200 that are turned on for electrical storage varies with the current output power of the photovoltaic module 100, and the number of electrical storage devices 200 that are turned on matches the current output power of the photovoltaic module 100. The management algorithm and the like of the power storage management device 300 for the power storage device 200 may be selected according to actual needs, and the present application is not particularly limited. For example, when the current output power of the photovoltaic module 100 is larger, the electrical storage management device 300 controls to start the electrical storage of more electrical storage devices 200. When the current output power of the photovoltaic module 100 is smaller, the electrical storage management device 300 controls to turn off more of the electrical storage devices 200 and store less of the electrical storage devices 200, so that less of the electrical storage devices 200 can be charged as soon as possible. The electricity storage management device 300 may also control turning on and off of each of the electricity storage management devices 300 according to the current amount of electricity of each of the electricity storage devices 200. For example, when the current output power of the photovoltaic module 100 is larger, the electrical storage management device 300 controls to turn on the electrical storage device 200 with a larger amount of electricity in the electrical storage device 200 and turn off the electrical storage device 200 with a smaller amount of electricity in the electrical storage device 200, so that the electrical storage device 200 with a larger amount of electricity can be charged quickly.
In this embodiment, the electricity storage management method controls and manages the turning on or off of the plurality of electricity storage devices 200 by acquiring the current output power of the photovoltaic module 100 and the current electric quantity of each electricity storage device 200, and according to the current output power of the photovoltaic module 100 and the current electric quantity of each electricity storage device 200, so that the number of the electricity storage devices 200 that are turned on to store electricity matches the change of the current output power of the photovoltaic module 100. The method provided by the embodiment enables the charging of the power storage device 200 to be matched with the current output electric energy of the photovoltaic module 100, so that the limited output electric energy can be rapidly and effectively charged to the power storage device 200, the power storage efficiency of the photovoltaic sharing power storage system 10 is improved, and the energy utilization rate is further improved.
Referring to fig. 3, in one embodiment, S30 includes:
s310, sorting the plurality of power storage devices 200 according to the current electric quantity of each power storage device 200, wherein the power storage devices 200 that do not reach the rated electric quantity, and generating an electric quantity sequence table.
The electrical storage device 200 that does not reach the rated charge amount, that is, the electrical storage device 200 that is not fully charged, refers to the electrical storage device 200 in which the charge amount does not reach the nominal capacity or the electrical storage device 200 in which the voltage does not reach the nominal voltage. The sorting of the power storage devices 200 that are not fully charged may be performed in a descending order according to the current electric quantity of the power storage devices 200, in an ascending order according to the power storage devices 200, or in another order according to need.
And S320, determining a management scheme for carrying out power storage on or off on the plurality of power storage devices 200 according to the current output electric energy of the photovoltaic module 100 and the electric quantity sequence table.
The management scheme may include turning on several of the electrical storage devices 200, which of the electrical storage devices 200 is turned on, and the like. The management scheme can be set and selected according to actual needs.
S330, managing the plurality of power storage devices 200 according to the management plan.
The management scheme is determined according to S320, and the turning on and off of each of the power storage devices 200 is controlled.
In this embodiment, according to the current electric quantity of each of the electric storage devices 200, the electric storage devices 200 that do not reach the rated electric quantity are sorted, an electric quantity sequence table is generated, and a management scheme for turning on or off the electric storage of the plurality of electric storage devices 200 is determined according to the current output electric energy of the photovoltaic module 100 and the electric quantity sequence table. The method provided by the embodiment can fully combine the electric quantity of all the electric storage devices 200 and the power generation capacity of the photovoltaic module 100 to determine the on and off of each electric storage device 200, thereby further improving the electric storage efficiency.
Referring to fig. 4, in one embodiment, S310 includes:
s311, according to the current electric quantity of each electric storage device 200, the electric storage devices meeting the rated electric quantity are searched and removed, and the electric storage devices not meeting the rated electric quantity are determined.
S312, the power storage devices 200 that do not reach the rated power are sorted, and a power sequence table is generated.
Satisfying the rated charge amount means that the electrical storage device 200 is already fully charged. Since the electrical storage device 200 that has been fully charged does not need to continue charging, it is not necessary to determine turning on and off. The elimination means that the power storage device 200 satisfying the rated electric quantity does not participate in the ranking of the current electric quantity and is not listed in the electric quantity sequence table. In this embodiment, the power storage devices 200 that meet the rated electric quantity are searched and removed, and the power storage devices 200 that do not meet the rated electric quantity are sorted, so that the accuracy of determining the management scheme is improved.
Referring to fig. 5, in one embodiment, the current output power condition of the photovoltaic module 100 is represented by the percentage of the current output power to the rated output power. Then, S10 includes:
s110, the electrical storage management device 300 obtains the current output power of the photovoltaic module 100;
s120, the electrical storage management device 300 obtains the rated output power of the photovoltaic module 100;
s130, the electrical storage management device 300 calculates the output power percentage of the photovoltaic module 100 according to the current output power of the photovoltaic module 100 and the rated output power of the photovoltaic module 100, so as to obtain the current output electric energy of the photovoltaic module 100. In this embodiment, the current output power condition of the photovoltaic module 100 is represented by a percentage of the current output power and the rated output power of the photovoltaic module 100, so that calculation and acquisition are facilitated, and the accuracy of judging the current output power condition of the photovoltaic module 100 can be improved.
In one embodiment, the S310 may be:
and S313, sorting the plurality of the electric storage devices 200 which do not reach the rated electric quantity in a descending order according to the current electric quantity of each electric storage device 200, and generating an electric quantity descending order list.
That is, of all the electrical storage devices 200 that do not reach the rated amount of electricity, the electrical storage device 200 that has the largest amount of current electricity is ranked first in the descending order of amounts of electricity, the electrical storage device 200 that has the largest amount of current electricity is ranked second in the descending order of amounts of electricity, and so on. For example, in percentage of the rated capacity, the capacity of the battery a is 98, the capacity of the battery B is 96, the capacity of the battery C is 95, the capacity of the battery D is 94, and the capacities are sequentially decreased, so that the battery a, the battery B, the battery C, and the battery D are respectively arranged at the first to fourth positions in the capacity decreasing list, and so on.
Referring to fig. 6, in one embodiment, S320 includes:
s321, determining the output electric energy level of the photovoltaic module 100 according to the electric energy output condition.
The electricity storage management device 300 determines the output power level of the photovoltaic module 100 according to a preset algorithm. The output power level is used to characterize the level of the power generation capability of the photovoltaic module 100. For example, when the current output power of the photovoltaic module 100 is smaller than a first preset threshold, the current output power is a first output power level. And when the current output electric energy of the photovoltaic module 100 is greater than or equal to the first preset threshold and smaller than a second preset threshold, determining that the current output electric energy is at a second output electric energy level. And when the current output electric energy of the photovoltaic module 100 is greater than or equal to the second preset threshold and smaller than a third preset threshold, determining that the current output electric energy is a third output electric energy level. The number of the output electric energy grades and the preset threshold corresponding to each output electric energy grade can be set and selected according to actual conditions.
And S322, determining the power storage device 200 which is charged in the power descending sequence list and the power storage device 200 which is charged in the power descending sequence list according to the output power level, and forming the management scheme.
The electricity storage management device 300 determines which of the electricity storage devices 200 is turned on and which of the electricity storage devices 200 is turned off in the electricity storage descending order list, that is, the management scheme, according to a preset algorithm and the output electricity level.
The management scheme can be set according to actual requirements. In one embodiment, the management scheme includes turning on the power storage devices 200 that are sorted in the descending order of charge amount list by less than a preset threshold, and turning off the power storage devices 200 that are sorted in the descending order of charge amount list by more than a preset threshold. For example, when the preset threshold is 2, the electrical storage device 200 smaller than 2 in the power descending order list is turned on at the first output power level. That is, the electrical storage devices 200 arranged at the 1 st and 2 nd places are turned on at the first output power level, and the electrical storage devices 200 ranked 2 or later are turned off.
Referring to table 1, the power storage management method is described below by taking the current output power condition of the photovoltaic module 100 as an example, which is characterized by the percentage of the current output power to the rated output power:
in table 1, P represents the percentage of the current output power of the photovoltaic module 100 to the rated output power, and TOPX represents the power storage device 200 sorted by X or less in the descending order list of electric quantity. When the P is less than 30%, the output power level of the photovoltaic module 100 is the first level, and the electrical storage management device 300 starts charging the electrical storage device 200 ranked at the top 2 in the power descending sequence table. When the P is more than or equal to 30% and less than 60%, the output power level of the photovoltaic module 100 is the second level, and the power storage management device 300 starts charging the power storage device 200 ranked at the top 3 in the power descending sequence table. When the P is more than or equal to 60% and less than 90%, the output power level of the photovoltaic module 100 is the third level, and the power storage management device 300 starts charging the power storage device 200 ranked at the top 4 in the power descending sequence table. When P > 90%, the output power level of the photovoltaic module 100 is fourth, and the electrical storage management device 300 starts charging all the electrical storage devices 200 in the electrical quantity descending sequence table.
TABLE 1
In this embodiment, an electric quantity descending sequence table is generated, an output electric energy level of the photovoltaic module 100 is determined according to the electric energy output condition, the electric storage devices 200 with the sequence smaller than a preset threshold value in the electric quantity descending sequence table are turned on according to the output electric energy level, and the electric storage devices 200 with the sequence larger than the preset threshold value in the electric quantity descending sequence table are turned off. The method provided by the embodiment enables the electrical storage device 200 with a large amount of electricity to be charged preferentially under the condition that the amount of electricity of the photovoltaic module 100 is low, so that the electrical storage device 200 with a large amount of electricity can quickly reach a full-electricity state for people to use. The method provided by the embodiment greatly improves the power storage efficiency.
Referring to fig. 7, an embodiment of the present application provides a photovoltaic shared power storage system 10, which includes a photovoltaic module 100, a plurality of power storage devices 200, and a power storage management device 300. Wherein the electricity storage management device 300 includes:
a first obtaining module 310, configured to obtain current output electric energy of the photovoltaic module 100;
a second acquiring module 320 for acquiring a current electric quantity of each of the electrical storage devices 200;
a control management module 330, configured to control and manage turning on or off of the plurality of electrical storage devices 200 according to the current output power of the photovoltaic module 100 and the current power of each electrical storage device 200, so that the number of turned-on electrical storage of the electrical storage devices 200 matches the change of the current output power of the photovoltaic module 100.
Further, the control management module 330 is specifically configured to:
sorting the power storage devices which do not reach the rated power according to the current power of each power storage device to generate a power sequence table;
determining a management scheme for carrying out power storage on or off on a plurality of power storage devices according to the current output electric energy of the photovoltaic module and the electric quantity sequence table;
managing a plurality of the electrical storage devices according to the management scheme.
Further, the control management module 330 is further configured to:
searching and rejecting the power storage devices meeting rated power according to the current power of each power storage device, and determining the power storage devices not meeting the rated power;
and sequencing the electric power storage devices which do not reach the rated electric quantity to generate an electric quantity sequence table.
Further, the control management module 330 is further configured to:
and according to the current electric quantity of each electric storage device, performing descending sorting on the plurality of electric storage devices which do not reach the rated electric quantity to generate an electric quantity descending sequence list.
Further, the control management module 330 is further configured to:
determining the output electric energy grade of the photovoltaic module according to the current output electric energy of the photovoltaic module;
and determining the electric storage devices which are charged in the electric energy descending order list and the electric storage devices which are charged in the electric energy descending order list according to the output electric energy grade, and forming the management scheme.
Further, the management scheme includes:
and turning on the power storage devices with the sequence less than or equal to a preset threshold value in the power descending sequence table, and turning off the power storage devices with the sequence greater than the preset threshold value in the power descending sequence table.
Further, the first obtaining module 310 is specifically configured to:
acquiring the current output power of the photovoltaic module;
obtaining rated output power of the photovoltaic module;
and calculating the output power percentage of the photovoltaic module according to the current output power of the photovoltaic module and the rated output power of the photovoltaic module to obtain the current output electric energy of the photovoltaic module.
The working principle and the beneficial effects of the photovoltaic sharing power storage system 10 provided by the present embodiment are similar to those of the power storage management method described above, and are not described herein again.
One embodiment of the present application provides a computer apparatus comprising a memory and a processor, the memory storing a computer program. The processor, when executing the computer program, performs the steps of the method as described above.
One embodiment of the present application provides a computer-readable storage medium having a computer program stored thereon. Which when executed by a processor implements the steps of the method as described above.
The working principle and the beneficial effects of the computer device and the computer-readable storage medium provided by this embodiment are similar to those of the above power storage management method, and are not described herein again.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several implementation modes of the present application, and the description thereof is specific and detailed, but not construed as limiting the scope of the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (5)
1. An electricity storage management method for managing electricity storage of a photovoltaic shared electricity storage system, characterized in that the photovoltaic shared electricity storage system includes a photovoltaic module for storing electricity to a plurality of electricity storage devices, and the plurality of electricity storage devices, the method comprising:
acquiring current output electric energy of the photovoltaic module;
acquiring the current electric quantity of each electric storage device;
controlling the on or off of a plurality of the electric power storage devices according to the current output electric energy of the photovoltaic module and the current electric quantity of each electric power storage device, so that the number of the electric power storage devices for starting electric power storage is matched with the change of the current output electric energy of the photovoltaic module; the controlling the on or off of the plurality of the electric power storage devices according to the current output electric energy of the photovoltaic module and the current electric quantity of each electric power storage device so that the number of the electric power storage devices for turning on electric power storage is matched with the change of the current output electric energy of the photovoltaic module comprises the following steps:
sorting the power storage devices which do not reach the rated power according to the current power of each power storage device to generate a power sequence table;
determining a management scheme for carrying out power storage on or off on a plurality of power storage devices according to the current output electric energy of the photovoltaic module and the electric quantity sequence table;
managing a plurality of the electrical storage devices according to the management scheme;
the sorting of the power storage devices which do not reach the rated power according to the current power of each power storage device, and the generating of the power sequence list specifically comprises:
according to the current electric quantity of each electric storage device, performing descending sorting on a plurality of electric storage devices which do not reach the rated electric quantity to generate an electric quantity descending sequence list;
the management scheme for determining the on or off of the power storage of the plurality of power storage devices according to the current output electric energy of the photovoltaic module and the electric quantity sequence table comprises the following steps:
determining the output electric energy grade of the photovoltaic module according to the current output electric energy of the photovoltaic module;
determining the electric power storage devices which are charged in the electric power descending order list and the electric power storage devices which are charged in the electric power descending order list according to the output electric power grade, and forming the management scheme;
the management scheme comprises the following steps:
turning on the power storage devices with the sequence less than or equal to a preset threshold value in the electric quantity descending sequence table, and turning off the power storage devices with the sequence greater than the preset threshold value in the electric quantity descending sequence table;
the acquiring of the current output electric energy of the photovoltaic module comprises:
acquiring the current output power of the photovoltaic module;
obtaining rated output power of the photovoltaic module;
calculating the output power percentage of the photovoltaic module according to the current output power of the photovoltaic module and the rated output power of the photovoltaic module to obtain the current output electric energy of the photovoltaic module;
p represents the percentage of the current output power and the rated output power of the photovoltaic module, when P is less than 30%, the output electric energy level of the photovoltaic module is the first level, and the power storage management device starts to charge the power storage devices ranked at the top 2 in the power storage descending sequence list; when the P is more than or equal to 30% and less than 60%, the output electric energy grade of the photovoltaic module is the second level, and the electric power storage management device starts charging on the electric power storage device ranked at the top 3 in the electric power descending sequence table; when P is more than or equal to 60% and less than 90%, the output electric energy grade of the photovoltaic module is the third grade, and the electric power storage management device starts charging on the electric power storage device ranked at the top 4 in the electric power descending sequence table; when P is greater than 90%, the output electric energy level of the photovoltaic module is fourth, and the electric power storage management device starts charging for all the electric power storage devices in the electric power descending sequence table.
2. The electricity storage management method according to claim 1, wherein said sorting the electricity storage devices that have not reached a rated amount of electricity according to a current amount of electricity of each of the electricity storage devices, and generating the electricity amount list includes: searching and eliminating the power storage devices meeting rated power according to the current power of each power storage device, and determining the power storage devices not meeting the rated power; and sequencing the electric power storage devices which do not reach the rated electric quantity to generate an electric quantity sequence table.
3. A photovoltaic-shared power storage system comprising a photovoltaic module, a plurality of power storage devices, and a power storage management device, wherein the power storage management device comprises:
the first acquisition module is used for acquiring the current output electric energy of the photovoltaic module;
the second acquisition module is used for acquiring the current electric quantity of each electric storage device;
the control management module is used for controlling and managing the turning-on or turning-off of a plurality of electric storage devices according to the current output electric energy of the photovoltaic module and the current electric quantity of each electric storage device, so that the number of the electric storage devices for turning on electric storage is matched with the change of the current output electric energy of the photovoltaic module;
the control management module is specifically configured to: sorting the power storage devices which do not reach the rated power according to the current power of each power storage device to generate a power sequence table;
determining a management scheme for carrying out power storage on or off on a plurality of power storage devices according to the current output electric energy of the photovoltaic module and the electric quantity sequence table;
managing a plurality of the electrical storage devices according to the management scheme;
the control management module is further configured to: according to the current electric quantity of each electric storage device, performing descending sorting on a plurality of electric storage devices which do not reach the rated electric quantity to generate an electric quantity descending sequence list;
the control management module is further configured to: determining the output electric energy grade of the photovoltaic module according to the current output electric energy of the photovoltaic module;
determining the electric power storage devices which are charged in the electric power descending order list and the electric power storage devices which are charged in the electric power descending order list according to the output electric power grade, and forming the management scheme;
the management scheme comprises the following steps:
turning on the power storage devices with the sequence less than or equal to a preset threshold value in the electric quantity descending sequence table, and turning off the power storage devices with the sequence greater than the preset threshold value in the electric quantity descending sequence table;
the first obtaining module is specifically configured to:
acquiring the current output power of the photovoltaic module;
obtaining rated output power of the photovoltaic module;
calculating the output power percentage of the photovoltaic module according to the current output power of the photovoltaic module and the rated output power of the photovoltaic module to obtain the current output electric energy of the photovoltaic module;
p represents the percentage of the current output power and the rated output power of the photovoltaic module, when P is less than 30%, the output electric energy level of the photovoltaic module is the first level, and the electric power storage management device starts to charge the electric power storage devices ranked at the top 2 in the electric power descending sequence list; when the P is more than or equal to 30% and less than 60%, the output electric energy grade of the photovoltaic module is the second level, and the electric power storage management device starts charging on the electric power storage device ranked at the top 3 in the electric power descending sequence table; when P is more than or equal to 60% and less than 90%, the output electric energy grade of the photovoltaic module is the third grade, and the electric power storage management device starts charging on the electric power storage device ranked at the top 4 in the electric power descending sequence table; when P is greater than 90%, the output electric energy level of the photovoltaic module is fourth, and the electric power storage management device starts charging for all the electric power storage devices in the electric power descending sequence table.
4. A computer device comprising a memory and a processor, the memory storing a computer program, characterized in that the processor realizes the steps of the method of any one of claims 1 to 2 when executing the computer program.
5. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the method of any one of claims 1 to 2.
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