CN112398212A - Standby power supply control method and device, energy storage system and storage medium - Google Patents
Standby power supply control method and device, energy storage system and storage medium Download PDFInfo
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/007—Regulation of charging or discharging current or voltage
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
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- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
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Abstract
The application is applicable to the technical field of electrochemical energy storage, and provides a standby power supply control method, a standby power supply control device, an energy storage system and a storage medium. In the embodiment of the application, load data and standby power time are obtained, and a reserved power value is determined according to the load data and the standby power time; acquiring equipment data, and determining the current dischargeable electric quantity and the charging electric quantity of the equipment according to the equipment data; calculating the sum of the current dischargeable electric quantity of the equipment and the charging electric quantity of the equipment, and comparing the sum with the reserved electric quantity value to obtain a comparison result; and controlling the equipment to perform charging and discharging operations according to the comparison result, realizing dynamic adjustment of the standby power supply in the energy storage system, and promoting reasonable use of the standby power supply so as to maximize energy storage benefits.
Description
Technical Field
The application belongs to the technical field of electrochemical energy storage, and particularly relates to a control method and device of a standby power supply, an energy storage system and a storage medium.
Background
With the development of society, electrochemical energy storage systems are more and more common in people's lives, most of the existing electrochemical energy storage systems are single in function, control logic is simpler, and a single energy storage unit can only undertake one duty. When the energy storage system is executing the function of the standby power supply, the electric quantity requirement is determined through historical data for deployment, the standby power supply is not reasonably used, and the maximization of the energy storage benefit cannot be achieved.
Disclosure of Invention
The embodiment of the application provides a control method and device for a standby power supply, an energy storage system and a storage medium, and can solve the problem that the maximization of energy storage benefit cannot be achieved due to the fact that the standby power supply is not reasonably used.
In a first aspect, an embodiment of the present application provides a method for controlling a standby power supply, including:
acquiring load data and standby power time, and determining a reserved power value according to the load data and the standby power time;
acquiring equipment data, and determining the current dischargeable electric quantity and the charging electric quantity of the equipment according to the equipment data;
calculating the sum of the current dischargeable electric quantity of the equipment and the charging electric quantity of the equipment, and comparing the sum with the reserved electric quantity value to obtain a comparison result;
and controlling the equipment to carry out charging and discharging operations according to the comparison result.
Optionally, the determining a reserved electric quantity value according to the load data and the standby power time includes:
predicting the load data according to a preset load power prediction model to obtain a load change curve of a preset interval;
and determining the reserved electric quantity value from the load change curve according to the standby power time.
Optionally, the determining a reserved electric quantity value from the load change curve according to the standby power time includes:
selecting an interval with the maximum load from the load change curve according to the standby power time;
and calculating the sum of all the electric quantity values in the interval, and taking the sum of all the electric quantity values as the reserved electric quantity value.
Optionally, the determining, according to the device data, the current dischargeable electric quantity of the device includes:
determining full electric quantity and discharge electric quantity of the equipment according to the equipment data;
and calculating the difference value between the full electric quantity of the equipment and the electric quantity discharged by the equipment, and taking the difference value as the current dischargeable electric quantity of the equipment.
Optionally, the determining the full electricity capacity of the device according to the device data includes:
and predicting the equipment data according to a preset electric quantity prediction model to obtain the full electric quantity of the equipment.
Optionally, the method includes:
acquiring current equipment data and corresponding current equipment full-electricity quantity every other preset period;
and performing parameter calibration on the electric quantity prediction model according to the current equipment data and the current equipment full electric quantity.
Optionally, the controlling the device to perform charging and discharging operations according to the comparison result includes:
when the sum is larger than the reserved electric quantity value, the control device performs discharging operation in a preset mode until the sum is equal to the reserved electric quantity value;
when the sum is smaller than the reserved electric quantity value, the control device performs charging operation in a preset manner until the sum is equal to the reserved electric quantity value.
In a second aspect, an embodiment of the present application provides a standby power control apparatus, including:
the first acquisition module is used for acquiring load data and standby power time and determining a reserved power value according to the load data and the standby power time;
the second acquisition module is used for acquiring equipment data and determining the current dischargeable electric quantity and the charging electric quantity of the equipment according to the equipment data;
the calculation module is used for calculating the sum of the current dischargeable electric quantity of the equipment and the charging electric quantity of the equipment, and comparing the sum with the reserved electric quantity value to obtain a comparison result;
and the control module is used for controlling the equipment to carry out charging and discharging operations according to the comparison result.
In a third aspect, an embodiment of the present application provides an energy storage system, which includes a memory, a processor, and a computer program stored in the memory and executable on the processor, where the processor implements the steps of any one of the above-mentioned backup power control methods when executing the computer program.
In a fourth aspect, embodiments of the present application provide a computer-readable storage medium, where a computer program is stored, and the computer program, when executed by a processor, implements the steps of any one of the above-mentioned backup power control methods.
In a fifth aspect, embodiments of the present application provide a computer program product, which, when running on an energy storage system, causes the energy storage system to execute any one of the backup power control methods in the first aspect.
In the embodiment of the application, load data and standby power time are obtained, and the reserved power value is determined according to the load data and the standby power time, so that the power value which must be reserved by the standby power supply is obtained; acquiring equipment data, and determining the current dischargeable electric quantity and the charging electric quantity of the equipment according to the equipment data; calculating the sum of the current dischargeable electric quantity of the equipment and the charging electric quantity of the equipment so as to determine the electric quantity value of the current equipment, comparing the sum with the reserved electric quantity value to obtain a comparison result, and determining the electric quantity value which can be used for other functions in the current equipment; according to compare result control equipment and carry out the operation of charging and discharging to make the electric quantity value in the equipment satisfy under the required circumstances of self, on the rational application in other aspects, in order to carry out the comparison of next round, realize the stand-by power supply in the dynamic adjustment energy storage system, and make stand-by power supply can the rational use, and then reach the maximize of energy storage income.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a first flowchart of a standby power control method according to an embodiment of the present disclosure;
fig. 2 is a schematic flowchart of a second method for controlling a standby power supply according to an embodiment of the present application;
FIG. 3 is a flow chart of load power prediction model data processing provided by an embodiment of the present application;
fig. 4 is a schematic flowchart of a standby power control method according to an embodiment of the present application;
FIG. 5 is a flow chart of data processing of a power prediction model provided by an embodiment of the present application;
fig. 6 is an overall flowchart of a standby power control method provided in an embodiment of the present application;
fig. 7 is a fourth flowchart illustrating a backup power control method according to an embodiment of the present application;
FIG. 8 is a schematic structural diagram of a backup power control device according to an embodiment of the present disclosure;
fig. 9 is a schematic structural diagram of an energy storage system provided in an embodiment of the present application.
Detailed Description
In the following description, for purposes of explanation and not limitation, specific details are set forth, such as particular system structures, techniques, etc. in order to provide a thorough understanding of the embodiments of the present application. It will be apparent, however, to one skilled in the art that the present application may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present application with unnecessary detail.
It will be understood that the terms "comprises" and/or "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
It should also be understood that the term "and/or" as used in this specification and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.
As used in this specification and the appended claims, the term "if" may be interpreted contextually as "when", "upon" or "in response to" determining "or" in response to detecting ". Similarly, the phrase "if it is determined" or "if a [ described condition or event ] is detected" may be interpreted contextually to mean "upon determining" or "in response to determining" or "upon detecting [ described condition or event ]" or "in response to detecting [ described condition or event ]".
Furthermore, in the description of the present application and the appended claims, the terms "first," "second," "third," and the like are used for distinguishing between descriptions and not necessarily for describing or implying relative importance.
Fig. 1 is a schematic flow chart of a backup power control method in an embodiment of the present application, where an execution main body of the method may be an energy storage system, and as shown in fig. 1, the backup power control method may include the following steps:
step S101, load data and standby power time are obtained, and a reserved power value is determined according to the load data and the standby power time.
In this embodiment, in order to facilitate determination of the basic condition of the device to which the current energy storage system is docked, the maximum required amount of the required backup power supply to be reserved by the current energy storage system is determined, that is, the reserved electric quantity value is determined, and then the reserved electric quantity value and the current electric quantity value are determined to achieve reasonable control. And then obtaining a reserved electric quantity value, namely the maximum demand of the standby power supply required by the equipment on the same day according to the obtained load data and the standby power time. The load data includes historical load data and daily power consumption data of an applied scene, for example, parameters such as load power, positive active power energy, negative active power energy, date, time and the like, the time is specifically the number of seconds, the date and the like from the 0 point of the current day to the current time, and the date includes year, month and day.
Optionally, as shown in fig. 2, step S101 includes:
step S201, load data are predicted according to a preset load power prediction model, and a load change curve of a preset interval is obtained.
Step S202, determining the reserved electric quantity value from the load change curve according to the standby power time.
In this embodiment, the energy storage system may input the obtained load data to a pre-constructed load power prediction model, so as to predict the input load data according to the load power prediction model to obtain a load change curve of a preset interval, where the load power prediction model data processing flowchart is shown in fig. 3, the preset interval is an interval from a current time to a future time, for example, if the current time is calculated by day, the preset interval is a load change curve of a load required by the remaining time of the device on the day, that is, a load change curve from the current time to 24 on the day. And selecting a curve which is in accordance with the standby power time from the load change curves according to the set standby power time, and determining the maximum demand of the standby power supply required by the day according to the selected curve, namely the reserved electric quantity value.
Alternatively, the load power prediction model may be constructed using the LSTM algorithm.
Optionally, step S202 includes:
selecting an interval with the maximum load from the load change curve according to the standby power time; and calculating the sum of all the electric quantity values in the interval, and taking the sum of all the electric quantity values as the reserved electric quantity value.
In this embodiment, to obtain the reserved electric quantity value that needs to be reserved currently, the energy storage system may select, according to the power reserve time, an interval with the largest load from the load change curves, select, from the selected interval, each electric quantity value on the load change curve, add up each electric quantity value in the interval, obtain a sum of each electric quantity value in the interval, and use the obtained sum as the electric quantity value that needs to be reserved currently.
Step S102, obtaining equipment data, and determining the current dischargeable electric quantity and the current charging electric quantity of the equipment according to the equipment data.
In this embodiment, the energy storage system obtains the current dischargeable electric quantity and the charging electric quantity of the device through the device data acquired by the energy storage system. The device data comprises ambient temperature, battery core parameters and various electric energy data detected by the device in real time, and the battery core parameters comprise full-power state standing voltage, battery discharge area platform voltage, battery discharge platform area voltage reduction slope and the like.
Optionally, as shown in fig. 4, the determining, in step S102, the current dischargeable electric quantity of the device according to the device data includes:
and S401, determining the full electric quantity and the discharging electric quantity of the equipment according to the equipment data.
Step S402, calculating a difference value between the full-charge electric quantity of the equipment and the discharge electric quantity of the equipment, and taking the difference value as the current dischargeable electric quantity of the equipment.
In this embodiment, the energy storage system obtains, through the acquired device data, a maximum system capacity or a maximum dischargeable electric quantity, that is, a full electric quantity of the device, and a discharged electric quantity within a preset time of the device, that is, a discharge electric quantity of the device, where the discharge electric quantity of the device is an electric quantity that has been discharged by the device from a point 0 to a current time on the current day if the current day is counted. And calculating the difference value between the full electric quantity of the equipment and the discharge electric quantity of the equipment to obtain the current dischargeable electric quantity of the equipment.
Optionally, the discharge electric quantity of the device, that is, the current specific discharge quantity of the device, is obtained according to the load power consumption, specifically, the current discharge electric quantity of the device can be obtained by reading the device data in real time, that is, the forward active total electric energy of the electric meter in the energy storage system cabinet and the forward active total electric energy of the electric meter in the energy storage system cabinet when the discharge starts in the history, and then, the discharge electric quantity of the current device can be calculated, and the full electric quantity of the device is combined with the full electric quantity of the device.
Optionally, because there is the condition of discharging many times in the energy storage system, and according to the load tracking characteristic of energy storage power discharging in the energy storage system, the electric quantity at the beginning stage of discharging can be calculated by reading the forward active total electric energy of the electric meter in the energy storage system cabinet and the forward active total electric energy of the electric meter in the energy storage system cabinet when discharging begins in the history.
Optionally, determining the full power capacity of the device according to the device data in step S401 includes: and predicting the equipment data according to a preset electric quantity prediction model to obtain the full electric quantity of the equipment.
In this embodiment, the energy storage system may input the environmental temperature and the battery core parameter in the acquired device data to a pre-constructed power prediction model, so as to predict the input device data according to the power prediction model to obtain a maximum dischargeable power value in the day, that is, a full power capacity of the device, where the power prediction model data processing flowchart is shown in fig. 5.
Optionally, the electric quantity prediction model may be constructed by using a naive bayes algorithm.
Optionally, obtaining current device data and corresponding current device full-electricity electric quantity every other preset period; and performing parameter calibration on the electric quantity prediction model according to the current equipment data and the current equipment full electric quantity.
In this embodiment, the ambient temperature of the battery in the device data before the initial discharge is started, the full-power state standing voltage after the battery is charged, the platform voltage of the battery discharge area, the voltage reduction slope of the battery discharge platform area, and the like are collected, the device data are input into the power prediction model as input parameters, the input device data are predicted according to the power prediction model to obtain the full-power of the device, and the device data and the corresponding full-power of the device are obtained every preset period, so that the parameter calibration is performed on the power prediction model, and the prediction of the full-power of the device by the power prediction model is more accurate.
Step S103, calculating the sum of the current dischargeable electric quantity of the equipment and the charging electric quantity of the equipment, and comparing the sum with the reserved electric quantity value to obtain a comparison result.
And step S104, controlling the equipment to perform charging and discharging operations according to the comparison result.
In this embodiment, the energy storage system calculates a sum of the current dischargeable electric quantity of the device and the charging electric quantity of the device to obtain a current actual adjustable power supply electric quantity, and then compares the actual adjustable power supply electric quantity with the reserved electric quantity value to obtain a comparison result, so that the energy storage system determines whether the current standby power supply has the power supply electric quantity which can be adjusted and controlled under the condition that the current standby power supply meets the electric quantity requirement in the standby power time according to the comparison result, and if so, performs a discharging operation; or determining whether the current actually adjustable power supply electric quantity of the energy storage system meets the electric quantity requirement of the energy storage system in the standby power time, and if not, performing charging operation. The reserved electric quantity value is a floating value which can change along with the change of time, so the reserved electric quantity value is used as a judgment basis, and the change value of the reserved electric quantity value after each update is used as a comparison basis, so that the charging and discharging control logic of the energy storage system is adjusted.
Optionally, after the energy storage system controls the device to perform a response operation according to the current comparison result, the current changed electric quantity data needs to be updated in real time, as shown in fig. 6, fig. 6 is an overall flowchart of the standby power control method, for example, if a discharging operation is performed, the current discharging quantity of the device is updated; if the charging operation is carried out, updating the charging electric quantity of the equipment; and the reserved electric quantity value is determined by the means again, and the comparison of the next round is continued, so that the standby power supply in the energy storage system is dynamically adjusted, the standby power supply can be reasonably used, and the maximization of the energy storage benefit is further achieved.
It can be understood that, in general, the reserved electric quantity value shows a trend of continuously decreasing with the lapse of time, and the energy storage system may also control the device to intermittently discharge the remaining electric quantity along with the change of the reserved electric quantity value according to the current comparison result, so as to achieve the purpose of increasing the peak shifting and valley filling benefits. However, there may be a case where the reserve charge value is increased in the prediction result after subsequent updating due to some demand, and the charging condition may occur at this time.
Optionally, as shown in fig. 7, step S104 includes:
and step S701, when the sum is larger than the reserved electric quantity value, the control equipment performs discharging operation in a preset mode until the sum is equal to the reserved electric quantity value.
Step S702, when the sum is smaller than the reserved electric quantity value, the control device performs a charging operation in a preset manner until the sum is equal to the reserved electric quantity value.
In this embodiment, when the sum of the current dischargeable electric quantity of the device and the charging electric quantity of the device is greater than the reserved electric quantity value, the device is controlled to perform the discharging operation in a preset manner until the sum of the current dischargeable electric quantity of the device and the charging electric quantity of the device is equal to the reserved electric quantity value. The dischargeable electric quantity W5 of the above discharging operation is:
W5＝W2-W3+W4-W1
wherein, the W2 is the full electric quantity of the device; w3 represents the current discharge capacity; the W4 is the charging capacity of the equipment; the W1 is a reserved electric quantity value.
Similarly, when the sum of the current dischargeable electric quantity of the device and the charging electric quantity of the device is smaller than the reserved electric quantity value, the device is controlled to perform charging operation in a preset mode until the sum of the current dischargeable electric quantity of the device and the charging electric quantity of the device is equal to the reserved electric quantity value. The charge amount W6 of the above charging operation is:
W6＝W1-(W2-W3+W4)
it can be understood that, in order to ensure that the energy storage system provides the standby power supply, the remaining power in the system can meet the power demand of the standby power supply in the standby power supply time, so it needs to be determined whether the sum of the current dischargeable power and the charging power of the device after the device is discharged or charged is equal to the reserved power value, and if so, the charging and discharging operation is stopped, and the device is kept in standby.
Optionally, in the using process, there is a situation that the reserved electric quantity of the system is insufficient due to fluctuation of the model predicted value, that is, the sum of the current dischargeable electric quantity of the device and the charging electric quantity of the device is smaller than the reserved electric quantity value, at this time, the device needs to be controlled to perform charging operation in a preset manner, and the charged amount can be obtained by calculating a reverse total active electric energy difference value of the electric quantity acquired in the energy storage system cabinet.
In the embodiment of the application, load data and standby power time are obtained, and the reserved power value is determined according to the load data and the standby power time, so that the power value which must be reserved by the standby power supply is obtained; acquiring equipment data, and determining the current dischargeable electric quantity and the charging electric quantity of the equipment according to the equipment data; calculating the sum of the current dischargeable electric quantity of the equipment and the charging electric quantity of the equipment so as to determine the electric quantity value of the current equipment, comparing the sum with the reserved electric quantity value to obtain a comparison result, and determining the electric quantity value which can be used for other functions in the current equipment; according to compare result control equipment and carry out the operation of charging and discharging to make the electric quantity value in the equipment satisfy under the required circumstances of self, on the rational application in other aspects, in order to carry out the comparison of next round, realize the stand-by power supply in the dynamic adjustment energy storage system, and make stand-by power supply can the rational use, and then reach the maximize of energy storage income.
It should be understood that, the sequence numbers of the steps in the foregoing embodiments do not imply an execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present application.
Fig. 8 is a schematic structural diagram of a standby power control apparatus according to an embodiment of the present application, corresponding to the above-described standby power control method, and as shown in fig. 8, the standby power control apparatus may include:
the first obtaining module 801 is configured to obtain load data and standby power time, and determine a reserved power value according to the load data and the standby power time.
A second obtaining module 802, configured to obtain device data, and determine, according to the device data, a current dischargeable electric quantity and a device charging electric quantity of the device.
The calculating module 803 is configured to calculate a sum of the current dischargeable electric quantity of the device and the charging electric quantity of the device, and compare the sum with the reserved electric quantity value to obtain a comparison result.
And the control module 804 is used for controlling the equipment to perform charging and discharging operations according to the comparison result.
Optionally, the first obtaining module 801 may include:
and the prediction unit is used for predicting the load data according to a preset load power prediction model to obtain a load change curve of a preset interval.
The first determining unit is used for determining the reserved electric quantity value from the load change curve according to the standby power time.
Optionally, the first determining unit may include:
and the selection interval subunit is used for selecting the interval with the maximum load from the load change curve according to the standby power time.
And the sum calculating subunit is used for calculating the sum of all the electric quantity values in the interval and taking the sum of all the electric quantity values as the reserved electric quantity value.
Optionally, the second obtaining module 802 may include:
and the second determining unit is used for determining the full electric quantity and the discharging electric quantity of the equipment according to the equipment data.
And the calculating unit is used for calculating the difference value between the full electric quantity of the equipment and the discharging electric quantity of the equipment, and taking the difference value as the current dischargeable electric quantity of the equipment.
Optionally, the second determining unit may include:
and the predicting subunit is used for predicting the equipment data according to a preset electric quantity prediction model to obtain the full electric quantity of the equipment.
Optionally, the standby power control device may further include:
and the third acquisition module is used for acquiring the current equipment data and the corresponding current equipment full-electricity quantity every other preset period.
And the parameter calibration module is used for carrying out parameter calibration on the electric quantity prediction model according to the current equipment data and the current equipment full electric quantity.
Optionally, the control module 804 may include:
and the discharging unit is used for controlling the equipment to perform discharging operation in a preset mode when the sum is larger than the reserved electric quantity value until the sum is equal to the reserved electric quantity value.
And the charging unit is used for controlling the equipment to perform charging operation in a preset mode when the sum is smaller than the reserved electric quantity value until the sum is equal to the reserved electric quantity value.
In the embodiment of the application, load data and standby power time are obtained, and the reserved power value is determined according to the load data and the standby power time, so that the power value which must be reserved by the standby power supply is obtained; acquiring equipment data, and determining the current dischargeable electric quantity and the charging electric quantity of the equipment according to the equipment data; calculating the sum of the current dischargeable electric quantity of the equipment and the charging electric quantity of the equipment so as to determine the electric quantity value of the current equipment, comparing the sum with the reserved electric quantity value to obtain a comparison result, and determining the electric quantity value which can be used for other functions in the current equipment; according to compare result control equipment and carry out the operation of charging and discharging to make the electric quantity value in the equipment satisfy under the required circumstances of self, on the rational application in other aspects, in order to carry out the comparison of next round, realize the stand-by power supply in the dynamic adjustment energy storage system, and make stand-by power supply can the rational use, and then reach the maximize of energy storage income.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the apparatus and the module described above may refer to corresponding processes in the foregoing system embodiments and method embodiments, and are not described herein again.
Fig. 9 is a schematic structural diagram of an energy storage system according to an embodiment of the present application. For convenience of explanation, only portions related to the embodiments of the present application are shown.
As shown in fig. 9, the energy storage system 9 of this embodiment includes: at least one processor 900 (only one shown in fig. 9), a memory 901 connected to the processor 900, and a computer program 902, such as a backup power control program, stored in the memory 901 and operable on the at least one processor 900. The processor 900 implements the steps in each of the above-described embodiments of the standby power control method, such as steps S101 to S104 shown in fig. 1, when executing the computer program 902. Alternatively, the processor 900 implements the functions of the modules in the above device embodiments, such as the functions of the modules 801 to 804 shown in fig. 8, when executing the computer program 902.
Illustratively, the computer program 902 may be partitioned into one or more modules that are stored in the memory 901 and executed by the processor 900 to accomplish the present application. The one or more modules may be a series of computer program instruction segments capable of performing specific functions, which are used to describe the execution of the computer program 902 in the energy storage system 9. For example, the computer program 902 may be divided into a first obtaining module 801, a second obtaining module 802, a calculating module 803, and a control module 804, and the specific functions of the modules are as follows:
a first obtaining module 801, configured to obtain load data and standby power time, and determine a reserved power value according to the load data and the standby power time;
a second obtaining module 802, configured to obtain device data, and determine a current dischargeable electric quantity and a device charging electric quantity of the device according to the device data;
a calculating module 803, configured to calculate a sum of the current dischargeable electric quantity of the device and the charging electric quantity of the device, and compare the sum with the reserved electric quantity value to obtain a comparison result;
and the control module 804 is used for controlling the equipment to perform charging and discharging operations according to the comparison result.
The energy storage system 9 may include, but is not limited to, a processor 900, a memory 901. Those skilled in the art will appreciate that fig. 9 is merely an example of the energy storage system 9, and does not constitute a limitation on the energy storage system 9, and may include more or less components than those shown, or combine certain components, or different components, such as input and output devices, network access devices, buses, etc.
The Processor 900 may be a Central Processing Unit (CPU), and the Processor 900 may be other general purpose processors, Digital Signal Processors (DSPs), Application Specific Integrated Circuits (ASICs), Field-Programmable Gate arrays (FPGAs) or other Programmable logic devices, discrete Gate or transistor logic devices, discrete hardware components, etc. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
The storage 901 may be an internal storage unit of the energy storage system 9 in some embodiments, for example, a hard disk or an internal memory of the energy storage system 9. The memory 901 may also be an external storage device of the energy storage system 9 in other embodiments, such as a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card), and the like, which are provided on the energy storage system 9. Further, the memory 901 may also include both an internal storage unit and an external storage device of the energy storage system 9. The memory 901 is used for storing an operating system, an application program, a Boot Loader (Boot Loader), data, and other programs, such as program codes of the computer programs. The memory 901 may also be used to temporarily store data that has been output or is to be output.
It will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-mentioned division of the functional units and modules is illustrated, and in practical applications, the above-mentioned function distribution may be performed by different functional units and modules according to needs, that is, the internal structure of the apparatus is divided into different functional units or modules to perform all or part of the above-mentioned functions. Each functional unit and module in the embodiments may be integrated in one processing unit, or each unit may exist alone physically, or two or more units are integrated in one unit, and the integrated unit may be implemented in a form of hardware, or in a form of software functional unit. In addition, specific names of the functional units and modules are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present application. The specific working processes of the units and modules in the system may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and reference may be made to the related descriptions of other embodiments for parts that are not described or illustrated in a certain embodiment.
Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.
In the embodiments provided herein, it should be understood that the disclosed device/energy storage system and method may be implemented in other ways. For example, the above-described device/energy storage system embodiments are merely illustrative, and for example, the division of the modules or units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, all or part of the processes in the methods of the embodiments described above can be implemented by a computer program, which can be stored in a computer-readable storage medium and can implement the steps of the embodiments of the methods described above when the computer program is executed by a processor. Wherein the computer program comprises computer program code, which may be in the form of source code, object code, an executable file or some intermediate form, etc. The computer readable medium may include at least: any entity or device capable of carrying computer program code to a photographing apparatus/energy storage system, a recording medium, computer Memory, Read-Only Memory (ROM), Random Access Memory (RAM), an electrical carrier wave signal, a telecommunications signal, and a software distribution medium. Such as a usb-disk, a removable hard disk, a magnetic or optical disk, etc. In certain jurisdictions, computer-readable media may not be an electrical carrier signal or a telecommunications signal in accordance with legislative and patent practice.
The above-mentioned embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; 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 solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the spirit and scope of the embodiments of the present application and are intended to be included within the scope of the present application.
Claims (10)
1. A method for controlling a standby power supply, comprising:
acquiring load data and standby power time, and determining a reserved power value according to the load data and the standby power time;
acquiring equipment data, and determining the current dischargeable electric quantity and the charging electric quantity of the equipment according to the equipment data;
calculating the sum of the current dischargeable electric quantity of the equipment and the charging electric quantity of the equipment, and comparing the sum with the reserved electric quantity value to obtain a comparison result;
and controlling the equipment to carry out charging and discharging operations according to the comparison result.
2. The backup power control method according to claim 1, wherein said determining a reserve power value according to the load data and the backup power time comprises:
predicting the load data according to a preset load power prediction model to obtain a load change curve of a preset interval;
and determining the reserved electric quantity value from the load change curve according to the standby power time.
3. The backup power control method according to claim 2, wherein said determining a reserve power value from the load variation curve according to the backup time comprises:
selecting an interval with the maximum load from the load change curve according to the standby power time;
and calculating the sum of all the electric quantity values in the interval, and taking the sum of all the electric quantity values as the reserved electric quantity value.
4. The backup power control method of claim 1, wherein said determining a current amount of dischargeable power of a device based on said device data comprises:
determining full electric quantity and discharge electric quantity of the equipment according to the equipment data;
and calculating the difference value between the full electric quantity of the equipment and the electric quantity discharged by the equipment, and taking the difference value as the current dischargeable electric quantity of the equipment.
5. The backup power control method of claim 4, wherein said determining a device full charge based on said device data comprises:
and predicting the equipment data according to a preset electric quantity prediction model to obtain the full electric quantity of the equipment.
6. The backup power control method of claim 5, comprising:
acquiring current equipment data and corresponding current equipment full-electricity quantity every other preset period;
and performing parameter calibration on the electric quantity prediction model according to the current equipment data and the current equipment full electric quantity.
7. The method according to any one of claims 1 to 6, wherein the controlling the device to perform charging and discharging operations according to the comparison result comprises:
when the sum is larger than the reserved electric quantity value, the control device performs discharging operation in a preset mode until the sum is equal to the reserved electric quantity value;
when the sum is smaller than the reserved electric quantity value, the control device performs charging operation in a preset manner until the sum is equal to the reserved electric quantity value.
8. A backup power supply control device, comprising:
the first acquisition module is used for acquiring load data and standby power time and determining a reserved power value according to the load data and the standby power time;
the second acquisition module is used for acquiring equipment data and determining the current dischargeable electric quantity and the charging electric quantity of the equipment according to the equipment data;
the calculation module is used for calculating the sum of the current dischargeable electric quantity of the equipment and the charging electric quantity of the equipment, and comparing the sum with the reserved electric quantity value to obtain a comparison result;
and the control module is used for controlling the equipment to carry out charging and discharging operations according to the comparison result.
9. An energy storage system comprising a memory, a processor and a computer program stored in the memory and executable on the processor, characterized in that the processor, when executing the computer program, implements the steps of a backup power control method according to any of claims 1 to 7.
10. A computer-readable storage medium, in which a computer program is stored, which, when being executed by a processor, carries out the steps of a backup power control method according to any one of claims 1 to 7.
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Denomination of invention: A backup power control method, device, energy storage system, and storage medium Granted publication date: 20230131 Pledgee: Bank of Nanjing Co.,Ltd. Jiangning sub branch Pledgor: NANJING SIXIANG NEW ENERGY TECHNOLOGY CO.,LTD. Registration number: Y2024980005482 |
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