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A charging and discharging control method, device and equipment for an energy storage battery

A charge and discharge control and energy storage battery technology, applied in the field of energy storage applications, can solve the problems of complex operation and inconvenient calculation, and achieve the effects of convenient operation, optimized charging and discharging methods, and simple calculation methods

Active Publication Date: 2021-02-26
ELECTRIC POWER RESEARCH INSTITUTE, CHINA SOUTHERN POWER GRID CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Most of the existing energy storage battery peak-valley arbitrage methods are technical constraints on energy storage batteries, including energy storage battery state of charge constraints, state of charge constraints before and after time, and charge and discharge power constraints. Through refined modeling, Solve based on heuristic algorithm or professional calculation tools to realize the optimization of charging and discharging of energy storage batteries, the calculation is not simple enough, and the operation is more complicated

Method used

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  • A charging and discharging control method, device and equipment for an energy storage battery
  • A charging and discharging control method, device and equipment for an energy storage battery
  • A charging and discharging control method, device and equipment for an energy storage battery

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Embodiment 1

[0060] see figure 1 , is a schematic flowchart of a method for controlling charge and discharge of an energy storage battery provided in Embodiment 1 of the present invention. The energy storage battery charging and discharging control method provided by Embodiment 1 of the present invention is executed through steps S11 to S15:

[0061] S11. Acquire electricity price data of the regional power grid, and determine a charging time interval and a discharging time interval of the energy storage battery according to the electricity price data.

[0062] An electricity price threshold can be set in advance. When the electricity price data of the regional power grid is higher than the electricity price threshold, the time interval corresponding to the electricity price data is used as the discharge time interval to perform the discharge operation of the energy storage battery; when the electricity price data When the electricity price threshold is lower than the electricity price th...

Embodiment 2

[0116] see Figure 7 , is an energy storage battery charge and discharge control device 20 provided in Embodiment 2 of the present invention, including an electricity price acquisition module 21, an information processing module 22, and a central control module 23;

[0117]The electricity price acquisition module 21 is used to acquire the electricity price data of the regional power grid, and determine the charging time interval and discharging time interval of the energy storage battery according to the electricity price data;

[0118] The information processing module 22 is configured to calculate the charging time of the energy storage battery within the charging time interval and the charging power at each charging time according to the state of charge of the energy storage battery and battery characteristics ; Calculate the discharge time of the energy storage battery within the discharge time interval, and the discharge power at each discharge time;

[0119] The central...

Embodiment 3

[0131] see Figure 8 , is a schematic structural diagram of an energy storage battery charge and discharge control device 30 provided in Embodiment 3 of the present invention. It includes a processor 31, a memory 32, and a computer program stored in the memory and configured to be executed by the processor, such as calculating the charging time and charging power of the energy storage battery. The processor 31 executes the computer program to implement the steps in the above embodiment of calculating the charging time and charging power of the energy storage battery, such as steps S121 to S123 shown in the first embodiment. Alternatively, when the processor executes the computer program, it realizes the functions of the modules in the above device embodiments, such as the energy storage battery charging and discharging control device described in the second embodiment.

[0132] Exemplarily, the computer program can be divided into one or more modules, and the one or more modu...

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Abstract

The invention discloses a charging and discharging control method for an energy storage battery, which comprises acquiring electricity price data of a regional power grid, determining the charging time interval and discharging time interval of the energy storage battery according to the electricity price data; Battery characteristics, calculating the charging and discharging time of the energy storage battery in the charging and discharging time interval, and the charging power at each charging and discharging time; according to the charging power at each charging time, control the The energy storage battery is used to store energy; and the energy storage battery is controlled to release energy according to the discharge power at each discharge moment. The invention also discloses an energy storage battery charging and discharging control device and equipment. By adopting the embodiment of the present invention, the charging and discharging time and power of the energy storage battery can be adaptively calculated, and the energy storage battery can be controlled to store energy at the time of low electricity price and release energy at the time of high electricity price, realizing peak-valley arbitrage of energy storage, and the calculation method is simple and easy to operate. convenient.

Description

technical field [0001] The present invention relates to the technical field of energy storage applications, in particular to a method, device and equipment for controlling charge and discharge of an energy storage battery. Background technique [0002] The charging and discharging characteristics of the battery energy storage system can realize the time-space translation of energy, which helps to stabilize the peak-valley difference of the power grid, improve the power supply reliability of the power grid, promote the consumption of clean energy, optimize the allocation of power resources, and greatly improve the efficiency of the power system. flexibility. With the increasing development and maturity of energy storage technology, the cost of energy storage batteries is also decreasing, and the application of energy storage is becoming more and more extensive. Among them, the energy storage battery can respond to the electricity price signal, by storing electric energy duri...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/32
CPCH02J3/32
Inventor 毛田周保荣徐乾耀朱泽翔赵睿王滔
Owner ELECTRIC POWER RESEARCH INSTITUTE, CHINA SOUTHERN POWER GRID CO LTD