CN116365673A - Energy storage device control method and device, energy storage device and medium - Google Patents

Energy storage device control method and device, energy storage device and medium Download PDF

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Publication number
CN116365673A
CN116365673A CN202310270713.9A CN202310270713A CN116365673A CN 116365673 A CN116365673 A CN 116365673A CN 202310270713 A CN202310270713 A CN 202310270713A CN 116365673 A CN116365673 A CN 116365673A
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China
Prior art keywords
frequency
alternating current
energy storage
storage device
target
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Inventor
郑锐畅
陈熙
王雷
胡家杰
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Ecoflow Technology Ltd
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Ecoflow Technology Ltd
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Priority to CN202310270713.9A priority Critical patent/CN116365673A/en
Publication of CN116365673A publication Critical patent/CN116365673A/en
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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/02Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/42Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/44Methods for charging or discharging
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/42Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/44Methods for charging or discharging
    • H01M10/446Initial charging measures
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/007Regulation of charging or discharging current or voltage
    • H02J7/00712Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/02Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters
    • H02J7/04Regulation of charging current or voltage

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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)
  • Supply And Distribution Of Alternating Current (AREA)

Abstract

The application is applicable to the technical field of energy storage equipment control, and provides an energy storage equipment control method, an energy storage equipment control device, energy storage equipment and a medium. According to the energy storage equipment control method, the first alternating current frequency of the current place is obtained, the first alternating current frequency is compared with the default second alternating current frequency of the power conversion circuit of the energy storage equipment, and when the first alternating current frequency is different from the second alternating current frequency, the alternating current frequency suitable for electric equipment of the current place of the energy storage equipment can be determined and is not matched with the default second alternating current frequency of the energy storage equipment. By taking the first alternating current frequency as the target alternating current frequency and then controlling the power conversion circuit to output the target alternating current corresponding to the target alternating current frequency, the automatic switching of the output alternating current frequency of the energy storage device is realized, and the degree of automation of the energy storage device is improved.

Description

Energy storage device control method and device, energy storage device and medium
Technical Field
The application belongs to the technical field of new energy, and particularly relates to an energy storage device control method, an energy storage device control device, energy storage equipment and a computer readable storage medium.
Background
An energy storage device refers to a device that is capable of storing electrical energy and of providing corresponding electrical power according to the requirements of a load.
At present, the frequencies of the alternating currents used in different countries or regions are different, for example, the alternating current output in regions is 50 Hz, and the alternating current output in regions is 60 Hz. For the energy storage device, because the frequency of the output alternating current is a pre-configured frequency, the power can be normally supplied to the electric equipment in some areas, and the power cannot be normally used in other areas. Frequency switching can only be performed by manual configuration, e.g., long pressing of the output frequency button, which results in poor user experience.
Disclosure of Invention
In view of this, the embodiments of the present application provide an energy storage device control method, an energy storage device control apparatus, an energy storage device, and a computer readable storage medium, so as to solve the problem that the automation degree of the related energy storage device control scheme is low.
A first aspect of an embodiment of the present application provides a method for controlling an energy storage device, applied to the energy storage device, where the energy storage device includes a power conversion circuit, the method includes:
acquiring a first alternating current frequency of a current place;
if the first alternating current frequency is different from the default second alternating current frequency of the power conversion circuit, the first alternating current frequency is used as a target alternating current frequency;
and controlling the power conversion circuit to output target alternating current corresponding to the target alternating current frequency.
A second aspect of embodiments of the present application provides an energy storage device control apparatus, the energy storage device including a power conversion circuit, the apparatus comprising:
the frequency acquisition unit is used for acquiring the first alternating current frequency of the current location;
the first frequency switching unit is used for taking the first alternating current frequency as a target alternating current frequency if the first alternating current frequency is different from a second alternating current frequency defaulted by the power conversion circuit;
and the first alternating current control unit is used for controlling the power conversion circuit to output target alternating current corresponding to the target alternating current frequency.
A third aspect of embodiments of the present application provides an energy storage device, the energy storage device including a memory, a processor, and a computer program stored in the memory and executable on the energy storage device, the processor implementing the steps of the energy storage device control method provided in the first aspect when the computer program is executed.
A fourth aspect of the embodiments of the present application provides a computer-readable storage medium storing a computer program which, when executed by a processor, implements the steps of the energy storage device control method provided in the first aspect.
The energy storage device control method, the energy storage device control device, the energy storage device and the computer readable storage medium provided by the embodiment of the application have the following beneficial effects:
according to the control method for the energy storage device, the first alternating current frequency of the current place is obtained, the first alternating current frequency is compared with the default second alternating current frequency of the power conversion circuit of the energy storage device, and when the first alternating current frequency is different from the second alternating current frequency, the alternating current frequency suitable for electric equipment of the current place of the energy storage device can be determined, and the second alternating current frequency is not suitable for the default second alternating current frequency of the energy storage device. By taking the first alternating current frequency as the target alternating current frequency and then controlling the power conversion circuit to output the target alternating current corresponding to the target alternating current frequency, the automatic switching of the output alternating current frequency of the energy storage device is realized, and the degree of automation of the energy storage device is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required for the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a flowchart of an implementation of a method for controlling an energy storage device according to an embodiment of the present application;
FIG. 2 is a flowchart illustrating an implementation of a method for controlling an energy storage device according to another embodiment of the present disclosure;
FIG. 3 is a flowchart illustrating an implementation of a method for controlling an energy storage device according to another embodiment of the present disclosure;
fig. 4 is a block diagram of a control device of an energy storage device according to an embodiment of the present application;
fig. 5 is a block diagram of an energy storage device according to an embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application will be further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the present application.
The execution main body of the energy storage device control method provided by the embodiment is the energy storage device, and specifically can be a controller of the energy storage device configured with the function of the method. Here, the controller is configured in the energy storage device, and when the location of the energy storage device changes, the controller can automatically adapt to the alternating current frequency requirement of the location of the energy storage device and output alternating current with the adapting frequency of the located electric equipment.
When the method is realized, the corresponding firmware script can be configured in the controller of the battery management system of the energy storage device, and the firmware script describes the control method of the energy storage device, so that the energy storage device realizes the control method of the energy storage device provided by the embodiment when executing the firmware script.
For example, the energy storage device control method of the present embodiment may be described by configuring a corresponding application loader (Application Program Loader, APL) program script in a controller of a battery management system of the energy storage device, where the APL program script describes the energy storage device control method, so that the energy storage device implements the energy storage device control method provided by the present embodiment when executing the APL program script.
A method for outputting reference data provided in this embodiment is described in detail below by way of a specific implementation manner.
Fig. 1 is a flowchart of an implementation of a method for controlling an energy storage device according to an embodiment of the present application. As shown in fig. 1, the energy storage device control method includes the steps of:
s11: and acquiring the first alternating current frequency of the current place.
In step S11, the current location refers to the location where the energy storage device is currently being used. The first alternating current frequency is the alternating current frequency used by the electric equipment at the current location.
It can be appreciated that, because of the difference between the ac frequencies used in different countries and regions, it can be determined whether the frequency of the ac output by the energy storage device needs to be adjusted by acquiring the first ac frequency of the current location of the energy storage device before formally using the energy storage device.
In the concrete implementation, the energy storage equipment charges by utilizing the mains supply at the current location, so that the frequency of the mains supply can be acquired, namely the electricity utilization frequency requirement of the electric equipment in the area can be determined. After the first alternating current frequency is obtained, the steps S12 to S13 are executed, so that the energy storage device can adaptively adjust the voltage frequency of the alternating current output by the energy storage device according to the voltage frequency of the input alternating current, the intelligent degree of the energy storage device is improved, and the user experience is also improved.
As to when the first ac frequency of the current location is acquired, the following scenarios may be included, but are not limited to:
scene 1: and when the current use place of the energy storage equipment is inconsistent with the last use place, acquiring the first alternating current frequency of the current place.
For example, when the energy storage device is used last time, the energy storage device interacts with the control terminal to further acquire the geographic position information of the control terminal as the last use place. When the energy storage equipment is used currently, the energy storage equipment interacts with the control terminal, so that the current geographic position information of the control terminal is obtained as the current use place. And when the current use place of the energy storage equipment is compared with the last use place and the places used before and after are different, the first alternating current frequency of the current place can be obtained.
Scene 2: and when receiving the distribution network information sent by the control terminal, acquiring the first alternating current frequency of the current location.
For example, after the energy storage device is connected with the control terminal through bluetooth, a user can perform network distribution on the energy storage device by using an application program installed on the control terminal. And after the energy storage equipment receives the distribution network information sent by the control terminal, acquiring the first alternating current frequency of the current place.
As one example, the first ac frequency may be obtained when the energy storage device is currently charging an ac power source. The energy storage device is used for acquiring the current local mains frequency when the energy storage device is charged by the mains supply in the current region. The energy storage device obtains a first frequency when the current place is charged by the alternating current power supply, specifically, the periodic sampling electric signal of the alternating current power supply is compared with a preset reference electric signal, the difference between the periodic sampling electric signal and the preset reference electric signal is determined, and then the first alternating current frequency of the current place is determined according to the difference.
As an example, the first ac frequency of the current location may be obtained, or the voltage of the ac power source may be detected by a detection module disposed in the energy storage device, and the first ac frequency of the current location may be calculated by counting a time value of the voltage greater than a preset voltage value and a time value less than the preset voltage value, and processing the time value.
As another example, an analog front end chip may also be provided in the energy storage device, which is capable of sampling the charging parameters during charging of the energy storage device. When the energy storage device discharges, the analog front-end chip can sample to obtain the discharge parameters in the discharge process. Therefore, the first frequency of the current alternating current power supply can be obtained, or the analog front-end chip in the energy storage device can be configured, when the current commercial power is utilized to charge the energy storage device, the charging data are sampled through the analog front-end chip, and the first alternating current frequency is obtained through calculation according to the charging data.
S12: and if the first alternating current frequency is different from the default second alternating current frequency of the power conversion circuit, taking the first alternating current frequency as a target alternating current frequency.
In step S12, the second ac frequency is the voltage frequency of the ac when the power conversion circuit of the energy storage device outputs the ac in a default manner. And judging whether the first alternating current frequency is the same as the second alternating current frequency or not, and directly comparing the first alternating current frequency with the second alternating current frequency. For example, the values of the two frequencies are subtracted from each other to determine whether the two frequencies are the same or not.
It should be noted that, for the energy storage device, when the energy storage device is charged by using the alternating current, the voltage frequency of the alternating current is 50 hz or 60 hz, and the energy storage device can be normally charged, so when the difference between the first alternating current frequency and the second alternating current frequency is directly compared, if the difference is equal to 0, the first alternating current frequency and the second alternating current frequency can be determined to be the same, and if the difference is greater than 0, the first alternating current frequency and the second alternating current frequency can be determined to be different.
In this embodiment, the target ac frequency refers to a voltage frequency of the output ac when the energy storage device is at the current location and supplies power to the electric device. When the first alternating current frequency is different from the second alternating current frequency, the alternating current voltage frequency used by the electric equipment at the current place of the energy storage equipment is different from the voltage frequency of alternating current output by the energy storage equipment by default. Therefore, in order to adapt to the electric equipment at the current place, the energy storage equipment takes the first alternating current frequency as the target frequency alternating current frequency, so that when alternating current is provided for the electric equipment, the alternating current voltage adapted to the first alternating current frequency can be directly output.
In a specific implementation, the first ac frequency is taken as the target ac frequency, and the first ac frequency amplitude may be given to a controller of a power conversion circuit of the energy storage device, and the controller controls the power conversion circuit to output corresponding target ac.
It is to be readily understood that in other embodiments, the step S11 may be followed by a step juxtaposed to the step S12: and if the first alternating current frequency is the same as the default second alternating current frequency of the power conversion circuit, controlling the power conversion circuit to output alternating current corresponding to the second alternating current frequency.
Here, when the first ac frequency of the current location of the energy storage device is the same as the default second ac frequency of the power conversion circuit, it means that the energy storage device is not required to be switched between the ac voltage and the frequency, and the energy storage device can be directly used to supply power to the ac load.
S13: and controlling the power conversion circuit to output target alternating current corresponding to the target alternating current frequency.
In step S13, the power conversion circuit is a circuit in the energy storage device, and the energy storage device charges and discharges the battery cell through the power conversion circuit. The target alternating current is the alternating current output by the energy storage equipment when supplying power to the electric equipment at the current place.
In this embodiment, after the energy storage device is connected to the electric device at the current location, the power conversion circuit is controlled to output a target alternating current corresponding to the frequency of the target alternating current, where the voltage frequency of the target alternating current is the same as the voltage frequency of the electric device at the current location.
Here, the target ac frequency may be configured as the current output frequency of the energy storage device, so that the controller can control the inverter circuit in the energy storage device to convert the electric energy provided by the electric core by using the target ac frequency when the controller controls the energy storage device to output the ac next time, thereby outputting the target ac corresponding to the target ac frequency.
According to the control method for the energy storage device, the first alternating current frequency of the current place is obtained, the first alternating current frequency is compared with the default second alternating current frequency of the power conversion circuit of the energy storage device, and when the first alternating current frequency is different from the second alternating current frequency, the alternating current frequency suitable for electric equipment of the current place of the energy storage device can be determined, and the second alternating current frequency is not suitable for the default second alternating current frequency of the energy storage device. By taking the first alternating current frequency as the target alternating current frequency and then controlling the power conversion circuit to output the target alternating current corresponding to the target alternating current frequency, the automatic switching of the output alternating current frequency of the energy storage device is realized, and the degree of automation of the energy storage device is improved.
As an embodiment, step S11 may include: when receiving an alternating current output control instruction sent by a target terminal, sending a position acquisition request to the target terminal; receiving current position information returned by the target terminal according to the position acquisition request; and determining the first alternating current frequency of the current location according to the current position information.
In this embodiment, the target terminal refers to a control terminal that binds with the energy storage device, for example, a mobile phone, a tablet computer, and the like. The user can install an application program corresponding to the energy storage device on the target terminal, and the binding between the target terminal and the energy storage device is realized through the application program, so that near-field control or remote control on the energy storage device can be realized through the target terminal.
In a specific implementation, the target terminal may communicate with the energy storage device through a near field communication manner, for example, bluetooth communication, zigbee communication, or close range wireless communication. The target terminal can also communicate with the energy storage device through the server, for example, the target terminal sends control information to the server through a network, and the server sends corresponding control instructions to the energy storage device according to the control information, so that the control of the energy storage device is realized. For another example, the target terminal and the energy storage device are mounted under the same router, and the target terminal and the energy storage device communicate through the router.
In this embodiment, when the energy storage device and the target terminal are in the same position or in the same usage scenario, and when an ac output control instruction sent by the target terminal is received, a position obtaining request is sent to the target terminal, so that the current position of the energy storage device can be obtained. And taking the current position of the target terminal as the current position of the energy storage device. Therefore, after the energy storage equipment receives the current position information returned by the target terminal according to the position acquisition request, the energy storage equipment determines the first alternating current frequency of the current location according to the current position information.
As an embodiment, the steps described above: determining the first ac frequency of the current location according to the location information may include: and determining the first alternating current frequency from a preset voltage frequency comparison table according to the position information.
In this embodiment, the information in the preset voltage frequency comparison table is at least used for describing the correspondence between the position information and the voltage frequency. Therefore, after the position information is known, the corresponding first alternating current frequency can be determined from the preset voltage frequency comparison table according to the position information.
In practical application, the location information may be latitude and longitude coordinate information of the current location of the target terminal, and the area where the target device is located may be determined according to the latitude and longitude coordinate information. The preset voltage frequency comparison table can be configured in a memory of the energy storage device and also can be configured in a server. Because the information in the preset voltage frequency comparison table is at least used for describing the corresponding relation between the position information and the voltage frequency, the position information in the preset voltage frequency comparison table can be longitude and latitude coordinate range values corresponding to different areas. That is, after the latitude and longitude coordinates of the target terminal are obtained, the latitude and longitude coordinate range to which the latitude and longitude coordinates belong can be determined in a preset voltage frequency comparison table, that is, the corresponding region is determined, and then the first alternating current frequency is determined according to the corresponding relation between the latitude and longitude coordinate range value and the voltage frequency.
As another example, step S11 may include:
receiving distribution network information sent by a target terminal; when connection is established with a target gateway according to the distribution network information, an Internet Protocol (IP) address issued by the target gateway is acquired; and determining the first alternating current frequency of the current location according to the IP address.
In this embodiment, the target terminal instructs the energy storage device to perform networking according to the network allocation information by sending the network allocation information to the energy storage device, that is, the target terminal is mounted under the target gateway. Here, the target gateway may be a router providing a wireless network. After the energy storage device establishes connection with the target gateway according to the distribution network information, the wireless gateway can configure a corresponding IP address for the energy storage device. At this time, the energy storage device can obtain the IP address issued by the target gateway, and then determine the first ac frequency of the current location according to the IP address.
It can be appreciated that the frequency of the mains input voltage in different regions is known, and in a specific implementation, the current location can be determined according to the IP address, and then the first ac frequency of the current location can be determined by querying a preset voltage frequency comparison table. Here, the preset voltage frequency comparison table may be configured in the memory of the energy storage device, or may be configured in the server, which is not limited herein.
Referring to fig. 2, fig. 2 is a flowchart illustrating an implementation of a method for controlling an energy storage device according to another embodiment of the present application. Compared with the embodiment corresponding to fig. 1, the energy storage device control method shown in fig. 2 further includes steps S21 to S22 before step S13. As shown in fig. 2, specifically:
s21: and switching the alternating current output frequency of the power conversion circuit to the second alternating current frequency in response to a frequency switching instruction.
S22: and controlling the power conversion circuit to output alternating current corresponding to the second alternating current frequency.
In this embodiment, the frequency switching instruction is specifically an instruction triggered by the user, which may be a trigger of the user pressing a frequency switching button of the energy storage device, or an instruction sent by the user to the energy storage device by using the target terminal. Here, after the power conversion circuit outputs the target ac power at the target ac power frequency, when the user needs to switch the power conversion circuit to output the ac power at the original default ac power frequency, the ac power output frequency of the power conversion circuit can be switched to the second ac power frequency by responding to the frequency switching command, so as to control the power conversion circuit to output the ac power corresponding to the second ac power frequency.
It is easy to understand that, in this embodiment, after the voltage frequency of the energy storage device is implemented and the current place consumer is adaptive to the ac voltage frequency demand, the ac output frequency of the power conversion circuit is switched to the second ac frequency, that is, to the default voltage frequency by responding to the frequency switching instruction, so as to provide an implementation basis for following the change of the power supply demand of the energy storage device, improve the scientificity and reliability of the energy storage device, and widen the application range of the energy storage device.
Referring to fig. 3, fig. 3 is a flowchart illustrating an implementation method of an energy storage device control method according to another embodiment of the present application. Compared to the embodiment corresponding to fig. 2, the energy storage device control method shown in fig. 3 further includes steps S31 to S32 before step S12. As shown in fig. 3, specifically:
s31: and acquiring the sequence number of the energy storage device.
S32: and determining the second alternating current frequency according to the sequence number.
In this embodiment, the serial number of the energy storage device is used to uniquely identify the energy storage device.
In this embodiment, since each energy storage device may be configured with a serial number corresponding to the energy storage device, or may also identify a region where the energy storage device is sold by configuring a special field for the serial number, the region where the energy storage device is used may be determined according to the serial number of the energy storage device, that is, the default second ac frequency of the power conversion circuit of the energy storage device may be determined.
As an embodiment, the steps described above: determining the second alternating current frequency according to the sequence number comprises the following steps:
determining a target field from the sequence number according to a preset target field determining strategy; determining a second alternating current frequency from a preset voltage frequency comparison table according to the target field; and the preset voltage frequency comparison table is recorded with different corresponding relations between target fields and voltage frequencies.
In this embodiment, the target field determining policy is used to describe a rule or a method for determining a target field from a sequence number, or may be used to describe a field content belonging to a target terminal in the sequence number.
For example, a first field in a sequence number or an end field in a sequence number is used as a target field.
For another example, an alphabetic field in the sequence number is used as the target field, or a numeric field is used as the target field.
In the specific implementation, the second ac frequency is determined from a preset voltage frequency comparison table according to the target field, specifically, the table lookup may be performed according to the target field in the sequence number, so as to determine the second ac frequency.
Table 1 below is an example of a voltage frequency comparison table preset in this embodiment.
TABLE 1 Voltage frequency control Table
Country/region Target field Frequency of voltage
XXX C
50 Hz
YYY U 50 Hz
ZZZ A 60 Hz
Table 1 shows an example of a preset voltage frequency comparison table.
For example, the obtained sequence number of the energy storage device is "C123456789", the first field of the sequence number is taken as the target field, so that the "C" can be determined as the target terminal, and the second ac frequency corresponding to the target terminal can be known to be 50 hz through table lookup.
For another example, the obtained sequence number of the energy storage device is "123456789A", the end field of the sequence number is taken as the target field, the "a" can be determined as the target terminal, and the second ac frequency corresponding to the target terminal can be found to be 60 hz through table lookup.
It is easy to understand that in practical application, the country/region name corresponding to the target terminal may be configured in the preset voltage frequency comparison table according to the actual use requirement. As in table 1, the country or region to which the target field "a" corresponds is "XXX". In other embodiments, latitude and longitude information ranges of different areas may be configured in the preset voltage frequency comparison table, which is not limited herein.
According to the embodiment, the sequence number of the energy storage device is obtained, the second alternating current frequency is determined according to the sequence number, the second alternating current frequency can be compared with the first alternating current frequency, whether the default second alternating current frequency of the power conversion circuit of the energy storage device is replaced by the first alternating current frequency or not is determined, and an implementation basis is provided for realizing automatic switching of the alternating current voltage frequency of the energy storage device.
Referring to fig. 4, fig. 4 is a block diagram of a control device for an energy storage device according to an embodiment of the present application. In this embodiment, each unit included in the energy storage device control apparatus is configured to perform each step in the embodiments corresponding to fig. 1 to 3. Please refer to fig. 1 to 3 and the related descriptions in the embodiments corresponding to fig. 1 to 3. For convenience of explanation, only the portions related to the present embodiment are shown. Referring to fig. 4, the energy storage device control apparatus 40 includes: a frequency acquisition unit 41, a first frequency switching unit 42, and an alternating current control unit 43.
A frequency acquisition unit 41 for acquiring a first alternating current frequency of the current location.
And a first frequency switching unit 42, configured to set the first ac frequency as a target ac frequency if the first ac frequency is different from a second ac frequency default by the power conversion circuit.
A first ac control unit 43 for controlling the power conversion circuit to output a target ac corresponding to the target ac frequency.
As one embodiment, the energy storage device control apparatus 40 further includes:
and the second frequency switching unit is used for responding to a frequency switching instruction and switching the alternating current output frequency of the power conversion circuit into the second alternating current frequency.
And the second alternating current control unit is used for controlling the power conversion circuit to output alternating current corresponding to the second alternating current frequency.
As one embodiment, the energy storage device control apparatus 40 further includes:
and the serial number acquisition unit is used for acquiring the serial number of the energy storage device.
And the frequency determining unit is used for determining the second alternating current frequency according to the sequence number.
It should be understood that, in the energy storage device control apparatus provided in this embodiment, each unit is configured to execute each step in the embodiment corresponding to fig. 1 to 3, and each step in the embodiment corresponding to fig. 1 to 3 has been explained in detail in the foregoing embodiment, and reference is specifically made to fig. 1 to 3 and related descriptions in the embodiment corresponding to fig. 1 to 3, which are not repeated herein.
Fig. 5 is a block diagram of an energy storage device according to an embodiment of the present application. As shown in fig. 5, the energy storage device 5 of this embodiment includes: a processor 50, a memory 51 and a computer program 52 stored in said memory 51 and executable on said processor 50, for example a program of an energy storage device control method. The processor 50, when executing the computer program 52, implements the steps of the various embodiments of the energy storage device control method described above, such as the steps shown in fig. 1, or the steps shown in fig. 2 or 3. Alternatively, the processor 50 may execute the computer program 52 to implement the functions of the units in the embodiment corresponding to fig. 4. Please refer to the related description in the corresponding embodiment of fig. 4, which is not repeated here.
By way of example, the computer program 52 may be partitioned into one or more units that are stored in the memory 51 and executed by the processor 50 to complete the present application. The one or more units may be a series of computer program instruction segments capable of performing a specific function describing the execution of the computer program 52 in the energy storage device 5. For example, the computer program 52 may be divided into a frequency acquisition unit, a first frequency switching unit and an alternating current control unit, each unit functioning specifically as described above.
The energy storage device may include, but is not limited to, a processor 50, a memory 51. It will be appreciated by those skilled in the art that fig. 5 is merely an example of an energy storage device 5 and is not meant to be limiting as the energy storage device 5, and may include more or fewer components than shown, or may combine certain components, or different components, e.g., the energy storage device may also include input-output devices, network access devices, buses, etc.
The processor 50 may be a central processing unit (Central Processing Unit, CPU), other general purpose processors, digital signal processors (Digital Signal Processor, DSP), application specific integrated circuits (Application Specific Integrated Circuit, ASIC), off-the-shelf programmable gate arrays (Field-Programmable Gate Array, FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
The memory 51 may be an internal storage unit of the energy storage device 5, such as a hard disk or a memory of the energy storage device 5. The memory 51 may also be an external storage device of the energy storage device 5, such as a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card) or the like, which are provided on the energy storage device 5. Further, the memory 51 may also include both an internal storage unit and an external storage device of the energy storage device 5. The memory 51 is used to store the computer program as well as other programs and data required by the energy storage device. The memory 51 may also be used to temporarily store data that has been output or is to be output.
The above embodiments are only for illustrating the technical solution of the present application, and are not limiting; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present application, and are intended to be included in the scope of the present application.

Claims (10)

1. An energy storage device control method, applied to an energy storage device, the energy storage device including a power conversion circuit, the method comprising:
acquiring a first alternating current frequency of a current place;
if the first alternating current frequency is different from the default second alternating current frequency of the power conversion circuit, the first alternating current frequency is used as a target alternating current frequency;
and controlling the power conversion circuit to output target alternating current corresponding to the target alternating current frequency.
2. The energy storage device control method according to claim 1, further comprising, after the controlling the power conversion circuit to output a target alternating current corresponding to the target alternating current frequency:
switching an alternating current output frequency of the power conversion circuit to the second alternating current frequency in response to a frequency switching instruction;
and controlling the power conversion circuit to output alternating current corresponding to the second alternating current frequency.
3. The method for controlling an energy storage device according to claim 1 or 2, wherein the obtaining the first ac frequency of the current location includes:
when receiving an alternating current output control instruction sent by a target terminal, sending a position acquisition request to the target terminal;
receiving current position information returned by the target terminal according to the position acquisition request;
and determining the first alternating current frequency of the current location according to the current position information.
4. The energy storage device control method of claim 3, wherein determining the first ac frequency of the current location based on the location information comprises:
and determining the first alternating current frequency from a preset voltage frequency comparison table according to the position information.
5. The method for controlling an energy storage device according to claim 1 or 2, wherein the obtaining the first ac frequency of the current location includes:
receiving distribution network information sent by a target terminal;
when connection is established with a target gateway according to the distribution network information, an Internet Protocol (IP) address issued by the target gateway is acquired;
and determining the first alternating current frequency of the current location according to the IP address.
6. The energy storage device control method of claim 1, further comprising, before the assuming the first ac frequency is the target ac frequency if the first ac frequency is different from a second ac frequency default by the power conversion circuit:
acquiring a sequence number of the energy storage equipment;
and determining the second alternating current frequency according to the sequence number.
7. The energy storage device control method of claim 6, wherein said determining the second ac frequency from the serial number comprises:
determining a target field from the sequence number according to a preset target field determining strategy;
determining a second alternating current frequency from a preset voltage frequency comparison table according to the target field; and the preset voltage frequency comparison table is recorded with different corresponding relations between target fields and voltage frequencies.
8. An energy storage device control apparatus, wherein the energy storage device comprises a power conversion circuit, the apparatus comprising:
the frequency acquisition unit is used for acquiring the first alternating current frequency of the current location;
the first frequency switching unit is used for taking the first alternating current frequency as a target alternating current frequency if the first alternating current frequency is different from a second alternating current frequency defaulted by the power conversion circuit;
and the first alternating current control unit is used for controlling the power conversion circuit to output target alternating current corresponding to the target alternating current frequency.
9. An energy storage device, the energy storage device comprising: a memory, a processor and a computer program stored in the memory and executable on the energy storage device, the processor implementing the steps of the energy storage device control method according to any one of claims 1 to 7 when the computer program is executed.
10. A computer-readable storage medium storing a computer program, characterized in that the computer program, when executed by a processor, implements the steps of the energy storage device control method of any one of claims 1 to 7.
CN202310270713.9A 2023-03-16 2023-03-16 Energy storage device control method and device, energy storage device and medium Pending CN116365673A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117375190A (en) * 2023-12-06 2024-01-09 深圳力高新能技术有限公司 Parallel operation method and system of two-cluster battery system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117375190A (en) * 2023-12-06 2024-01-09 深圳力高新能技术有限公司 Parallel operation method and system of two-cluster battery system
CN117375190B (en) * 2023-12-06 2024-05-03 深圳力高新能技术有限公司 Parallel operation method and system of two-cluster battery system

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