Multi-parameter distributed optical fiber sensing system and method for monitoring battery array of energy storage system

Abstract

The invention discloses a multi-parameter distributed optical fiber sensing system and method for monitoring a battery array of an energy storage system, relates to the technical field of battery performance monitoring, and is used for solving the problem that large-scale and multi-parameter monitoring of the performance of the battery array of the energy storage system is difficult in the prior art. According to the technical key points, a data acquisition subsystem comprises a tunable light source and a multi-parameter signal acquisition module, and the multi-parameter signal acquisition module is used for acquiring signal data such as the battery temperature, the battery electrolyte density and the battery gas concentration of a battery array; the device comprises a plurality of groups of multi-parameter sensing units consisting of light splitting couplers and multi-parameter sensing probes, wherein each multi-parameter sensing probe comprises a fiber Bragg grating, a fiber Fabry-Perot cavity, a gas absorption chamber and other optical fiber sensing devices; and the data processing subsystem is used for demodulating the collected signals and acquiring the battery temperature, the electrolyte density and the battery gas concentration value in real time. According to the invention, multi-parameter distributed sensing of the battery array performance of the energy storage system can be realized.

Description

technical field [0001] The invention relates to the technical field of battery performance monitoring, in particular to a multi-parameter distributed optical fiber sensing system and method for battery array monitoring of an energy storage system. Background technique [0002] With the development of the new energy industry, the number of energy storage systems is increasing, which leads to more and more safety accidents such as fires and explosions in the energy storage system. An energy storage system includes a battery array composed of thousands of batteries. The current monitoring technology mainly uses electrical temperature sensors such as thermistors to monitor the sampling temperature of the battery array of the energy storage system. A battery is monitored, resulting in failure to detect battery failure in time. In addition, the current monitoring technology can only monitor the temperature and voltage of the battery array of the energy storage system, and cannot ...

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Problems solved by technology

[0004] In view of the above problems, the present invention proposes a multi-parameter distributed optical fiber sensing system and method for monitoring the battery array of the energy storage system, to solve the problem of large-scale, multi-parameter monitoring of the performance of the battery array of the energy storage system in the prior art. monitoring issues

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