With the continuous development of urban rail transit system,regenerative braking technology has become one of the key means of energy saving and emission reduction.This paper discusses the application of supercapacitors in on-board energy storage system of urban rail transit to meet the challenges of energy management and regenerative braking in urban rail transit system.This paper analyzes the importance of regenerative braking technology in urban rail transit system and the voltage standard and energy storage requirements of urban rail power supply system in China,discusses the working mechanism and characteristics of supercapacitors,and expounds its application methods in urban rail vehicle energy storage system,including supercapacitor bank control and braking resistance control.Through the rational application of supercapacitors,energy utilization efficiency can be effectively improved,energy waste can be reduced,and contribution can be made to the sustainable development of urban rail transit system.
supercapacitorregenerative brakingurban rail transitenergy storage system
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