Abstract:Abstract:The urban rail transit is characterized with short operation distance between adjacent stations, which results in a huge regenerative braking energy produced in the frequent starting and braking process. A great energy waste will arise for the traditional energy consumption braking due to the fact that it fails to make full use of regenerative braking energy. In view of this current situation, a scheme has thus been proposed of the application of the super capacitor and resistor hybrid energy storage device to the subway, followed by a discussion of the structure of the device and its control strategies. Finally, a simulation model based on Matlab/Simulink has been established according to the proposed scheme, and a simulation experiment has been carried out according to the subway operating characteristics. The simulation results show that the proposed method can effectively recycle the regenerative braking energy, with the DC traction network voltage stabilized.