Rail transit energy storage power supply is a high-power, high-safety professional energy storage system specially applied to urban subways, light rails, high-speed railways and other rail transit scenarios. Rail transit vehicles have typical characteristics of frequent start-stop, instantaneous high power consumption and periodic regenerative braking energy generation. In the operation process of trains, a large amount of regenerative electric energy will be generated during braking, which is often directly consumed by resistance heating in traditional power supply systems, resulting in serious energy waste. The rail transit energy storage power supply can effectively recover, store and reuse this part of residual electric energy, which plays a vital role in energy saving and consumption reduction of rail transit, stable grid voltage and safe operation of vehicles.

This energy storage power supply equipment adopts high-density energy storage units and high-efficiency bidirectional converter technology, which has the characteristics of fast charge-discharge response speed and strong instantaneous power bearing capacity. When the train brakes, the system quickly captures the regenerative electric energy generated by braking and completes high-efficiency energy storage in a short time; when the train starts, accelerates or runs in peak power consumption state, the stored electric energy is quickly released to supplement the power demand of the traction power supply system, reducing the peak load of the municipal power grid and avoiding voltage drop and power fluctuation of the rail transit power grid caused by instantaneous high power consumption of trains.

In terms of safety and operation stability, rail transit energy storage power supply is equipped with multiple protection mechanisms such as overvoltage, overcurrent, overheating and short circuit protection, adapting to the high-frequency and high-intensity operating environment of rail transit. The equipment supports 24-hour uninterrupted intelligent operation, and matches the intelligent scheduling system of rail transit to realize real-time matching of energy storage capacity and train operation schedule. In addition, the popularization and application of this equipment can effectively reduce the energy consumption cost of rail transit operation, reduce urban power supply pressure, and improve the overall energy utilization efficiency of the rail transit system. It is an important core equipment for building green, low-carbon and intelligent modern rail transit systems and promoting the energy-saving transformation of urban public transportation.