Active safety protection system and method for energy storage battery station

Abstract

The invention belongs to the technical field of energy storage batteries, and particularly relates to an active safety protection system and method for an energy storage battery station. According to the technical scheme, the active safety protection system for the energy storage battery station comprises: a plurality of temperature sensors and a plurality of gas concentration detectors which are mounted between adjacent lithium battery modules; a lithium battery module, wherein the temperature sensor and the gas concentration detector are electrically connected with the control device; and a fire extinguishing agent storage tank, wherein a pump set is connected to the fire extinguishing agent storage tank, an outlet of the pump set is connected with a fire extinguishing agent conveying pipeline, a plurality of branch pipelines are connected to the fire extinguishing agent conveying pipeline, electromagnetic valves are installed on the branch pipelines, nozzles are installed on the lithium battery modules, the nozzles stretch into the lithium battery modules, the nozzles are connected with the branch pipelines through pipelines, and the pump set and the electromagnetic valve are electrically connected with the control device. According to the active safety protection system and method for the energy storage power station, thermal runaway can be detected in time and processed.

Description

technical field [0001] The invention belongs to the technical field of energy storage batteries, and in particular relates to an active safety protection system and method for an energy storage battery station. Background technique [0002] The existing energy storage battery temperature detection system mostly detects the ambient temperature by setting a point-type temperature sensor in the container, which has a serious lag in response, and cannot truly and effectively reflect the time point when the thermal runaway of the battery cell in the battery pack occurs, nor can it be accurately located Runaway battery pack. The existing BMS (battery management system) also has monitoring and early warning for the temperature of the battery core, but most of them only monitor the temperature of several welding points in the battery pack. Due to the high cost of accurate temperature management of a single battery cell, it is difficult to popularize, and it is impossible to effecti...

AI Technical Summary

Problems solved by technology

Due to the high cost of accurate temperature management of a single cell, it is difficult to popularize, and it is impossible to effectively monitor the abnormal temperature caused by the thermal runaway of a single cell, and there is also a response lag

[0003] Existing gas concentration detectors can only detect the concentration of a single gas source, and when the lithium battery module has thermal runaway or failure, the battery cell will release CO, H 2 、CH 4 and other combustible gases, the existing gas concentration detection devices are difficult to analyze and determine the concentration of multi-component mixed gases

In addition, the energy storage battery gas detection system currently detects the ambient gas concentration by setting point-type gas concentration detectors in the container, which has a serious lag in response and cannot truly and effectively reflect the time point when the thermal runaway of the battery cells in the battery pack occurs. Unable to pinpoint runaway battery pack

[0004] The existing energy storage battery detection system cannot comprehensively detect the concentration, temperature and other parameters of the gas released during early thermal runaway, so that it is impossible to timely and accurately detect early thermal runaway and deal with it accordingly

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