Battery management system and early warning method for energy storage power station with intelligent fire early warning function

Abstract

The present invention proposes a battery management system and an early warning method for an energy storage power station with an intelligent fire early warning function, which is suitable for the management of batteries in a containerized energy storage power station. The system includes a power battery pack, an intelligent fire early warning module, and a battery management module. The battery management module is respectively connected with the power battery pack and the intelligent fire early warning module, and the intelligent fire early warning module is fixedly arranged in the prefabricated cabin and performs mobile sensor detection, and the detected sensor information is sent to the battery management module; The battery management module collects the voltage and temperature of the battery, and analyzes and judges based on the sensor information from the intelligent fire warning module. When the preset warning conditions are met, the alarm or fire extinguishing device is activated. The battery management system of the present invention adopts a three-level control framework, which can perform fire extinguishing minimum unit intervention control at the first time when a fire occurs, and realize all-round safety monitoring and management of energy storage batteries.

Description

technical field [0001] The invention belongs to the field of energy storage power supply systems, and in particular relates to a lithium battery-based battery management system and an early warning method with an intelligent fire early warning function. Background technique [0002] The continuous development and application of new energy sources such as photovoltaics and wind power have made their penetration rate higher and higher, and the characteristics of traditional power systems are also constantly changing. In order to adapt to this change, deal with the problems of large fluctuations in new energy sources and unstable power supply, and further improve the reliability of power system operation, large-capacity energy storage technology is becoming increasingly important. In this context, the battery management system (Battery management system, BMS) of the energy storage power station is studied to explore how to make the battery pack of the energy storage power stati...

AI Technical Summary

Problems solved by technology

At present, the BMS of energy storage power station mainly adopts the solution of electric vehicle battery management, lacks detailed analysis of the demand for large-scale energy storage power station batteries, and energy storage power station batteries are usually placed outdoors in containers, with large capacity and high risk of thermal runaway , Difficult to control, etc. At present, most of the fire extinguishing systems configured in battery containers of energy storage power stations are still building fire protection schemes, which cannot achieve functions such as hierarchical early warning. They can only spray relevant fire extinguishing media when a fire occurs, which may cause secondary damage to the energy storage system. or pollution

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