Integrated design and application of energy storage system for emergency power supply in coal mines

In order to meet the needs of the coal industry and coal mining enterprises for power supply reliability and realize green and low-carbon development transformation, Based on the electricity load and emergency load characteristics of a typical coal mine, the energy storage power and capacity requirements are analyzed. A 1.2MW/1.2MW h lithium iron phosphate battery energy storage system is adopted to ensure the underground lighting, main fan, local fan and mine hoist in case of mine failure and power failure This paper analyzes the structure of MW level energy storage converter and its energy storage application mode for coal mine emergency power supply, demonstrates the feasibility of battery energy storage system applied in coal mine emergency power supply field, and confirms the popularization and application value of this technology.