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Method, device and equipment for controlling charging and discharging of energy storage system, and energy storage system

The technology of an energy storage system and a control method, which is applied in the field of energy storage systems, can solve problems such as high service life loss and high battery operating pressure, and achieve the effects of prolonging battery life and reducing battery loss

Pending Publication Date: 2021-12-31
GREE ELECTRIC APPLIANCES INC
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  • Abstract
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  • Application Information

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Problems solved by technology

[0004] The application provides a charging and discharging control method, device and equipment, and an energy storage system for an energy storage system, which are used to solve the technical problems of high battery operating pressure and high service life loss in the existing user-side energy storage system

Method used

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  • Method, device and equipment for controlling charging and discharging of energy storage system, and energy storage system
  • Method, device and equipment for controlling charging and discharging of energy storage system, and energy storage system
  • Method, device and equipment for controlling charging and discharging of energy storage system, and energy storage system

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Embodiment Construction

[0042] In order to make the purpose, technical solution and advantages of the present application clearer, the technical solution of the present application will be described in detail below. Apparently, the described embodiments are only some of the embodiments of this application, not all of them. Based on the embodiments in the present application, all other implementation manners obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present application.

[0043] see figure 1 It is a flow chart of a method for controlling charging and discharging of an energy storage system provided by an embodiment of the present application. Embodiments of the present application provide a method for controlling charging and discharging of an energy storage system. As shown in the figure, the method for controlling charging and discharging of an energy storage system may at least include the following steps:

[0044] Step 11, d...

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Abstract

The invention relates to a method, a device and equipment for controlling charging and discharging of an energy storage system, and the energy storage system. The method for controlling charging and discharging of the energy storage system comprises the following steps: detecting the charging and discharging state of the energy storage system; when the charging and discharging state is a charging state, obtaining the residual electric quantity of the energy storage system; detecting whether the residual electric quantity meets a first preset condition; if the residual electric quantity meets the first preset condition, controlling the energy storage system to stop charging; when the charge-discharge state is a discharge state, obtaining the discharge depth of the energy storage system; detecting whether the discharge depth meets a second preset condition; and if the discharge depth meets the second preset condition, controlling the energy storage system to stop discharging. Therefore, the battery operation pressure can be relieved by controlling the charge-discharge depth, the battery loss is reduced, and the service life of the battery is prolonged.

Description

technical field [0001] The present application relates to the technical field of energy storage systems, in particular to a method, device and equipment for controlling charging and discharging of an energy storage system, and an energy storage system. Background technique [0002] In recent years, in order to cope with the increasingly severe energy crisis and environmental pollution, and to achieve low-carbon economy and sustainable development, various countries and regions have developed and utilized distributed renewable energy represented by wind power and photovoltaics. However, due to the characteristics of randomness, intermittency and volatility of renewable energy output, as its penetration rate continues to increase, the safe and stable operation of the power grid will also be threatened. In this context, energy storage systems have received widespread attention due to their role in smoothing the volatility of renewable energy generation, improving grid reliabili...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J7/00
CPCH02J7/0068H02J7/0048H02J7/00306H02J7/00302
Inventor 杨婵李恒曾安陈金奇
Owner GREE ELECTRIC APPLIANCES INC
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