Thermal management device for energy storage system, control method thereof, and energy storage system

Abstract

The invention relates to a heat management device for an energy storage system, a control method thereof, and an energy storage system. The start and stop of a temperature adjustment module is controlled according to the temperature and state information of the energy storage system, so as to realize temperature adjustment of the energy storage system and run the system The temperature is controlled within a certain range, and the running time of the air conditioner and fan is reduced at the same time, thereby reducing the power consumption and the user's power consumption loss. The reduction in power consumption of the energy storage system also indirectly improves the overall conversion efficiency of the energy storage system.

Description

technical field [0001] The present invention relates to the technical field related to energy storage equipment, in particular to an energy storage system thermal management device, a control method thereof, and an energy storage system. Background technique [0002] The battery energy storage system converts electrical energy into chemical energy through the battery, and then converts the chemical energy into electrical energy when external power is needed. The battery energy storage system can be applied in the process of power generation, power transmission, power distribution and power consumption. For energy storage systems, if the battery works at high temperature or low temperature for a long time, the system capacity will rapidly decay, and working at high temperature for a long time will also increase the risk of thermal runaway. Therefore, maintaining the battery system within an appropriate temperature range can reduce The system capacity decay speed can also avo...

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Problems solved by technology

[0003] At present, most energy storage systems are equipped with air-cooling systems. Air-cooling systems have the advantages of simple structure, easy maintenance, and low cost. Most of the control methods for energy storage systems use battery management systems to control the start and stop of air conditioners and fans according to the battery temperature. , a small number of non-control modules are used, and the air conditioner operates in the set temperature range. For these two thermal management methods, the temperature can be controlled within a certain range, but it will cause the air conditioner to run for too long and consume too much energy.

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