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Charging and discharging control method and device of energy storage system, controller and energy storage system

A charge and discharge control and energy storage system technology, applied in the field of energy storage systems, can solve the problems of equipment loss, charging cost, power increase, and battery increase, and achieve the effect of avoiding equipment loss

Pending Publication Date: 2022-03-08
GREE ELECTRIC APPLIANCES INC
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present application provides a charging and discharging control method, device, controller and energy storage system for an energy storage system, so as to solve the problems of equipment loss and charging cost increase caused by a sudden increase in power during the charging and discharging process of the PCS, as well as the charging and discharging process. Battery protection issues

Method used

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  • Charging and discharging control method and device of energy storage system, controller and energy storage system
  • Charging and discharging control method and device of energy storage system, controller and energy storage system
  • Charging and discharging control method and device of energy storage system, controller and energy storage system

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Embodiment

[0049] refer to figure 1 , figure 1 It is a schematic flowchart of a charge and discharge control method for an energy storage system provided in an embodiment of the present application. Among them, the energy storage system mainly includes upper-level control equipment (such as server or touch screen equipment, etc.), BMS (battery management system), PCS (energy storage converter) and load (load) and other equipment modules. This method is controlled by the BMS. device execution.

[0050] Such as figure 1 As shown, the method at least includes the following steps:

[0051] S101: Obtain a set target charging and discharging power;

[0052] Specifically, the target charge and discharge power is sent to the controller by the upper control device, for example, it can be set by the user through the touch screen device, or it can be determined by the server according to the pre-configured strategy and sent to the controller. device and so on.

[0053]S102: According to the p...

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Abstract

The invention relates to a charging and discharging control method and device of an energy storage system, a controller and the energy storage system. After the set target charging and discharging power is obtained, the corresponding actual charging and discharging power is determined according to the operating state, operating parameters and other factors of the energy storage system, so that the situation that the charging and discharging power does not meet the system state can be avoided, and parts such as a battery are protected; and the operation of the energy storage converter is controlled according to a stepped charging and discharging strategy, that is, the energy storage converter only operates according to a certain percentage of the actual charging and discharging power at the beginning and then operates according to the complete actual charging and discharging power, so that the problems of equipment loss and the like caused by soaring of the power within a short time can be avoided.

Description

technical field [0001] The present application relates to the technical field of energy storage, and in particular to a charging and discharging control method, device, controller and energy storage system for an energy storage system. Background technique [0002] In the current EMS (Energy management system, energy management system) energy storage system, PCS (Power Conversion System, energy storage converter) and BMS (Battery Management System, battery management system) are very important parts, but for PCS and BMS The protection of PCS is still not enough. In the process of PCS charging and discharging, the equipment loss and charging cost increase caused by the sudden increase of power are not considered, nor is the protection of the battery during the charging and discharging process taken into account. Contents of the invention [0003] The present application provides a charging and discharging control method, device, controller and energy storage system for an e...

Claims

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Application Information

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IPC IPC(8): H02J7/00H02J3/32H01M10/44
CPCH02J7/0048H02J7/0068H02J7/0063H02J3/32H01M10/44Y02E60/10
Inventor 李恒李伟进陈金奇林运楷曾安杨婵
Owner GREE ELECTRIC APPLIANCES INC
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