Research On Sychronverter-based Regenerative Braking Energy Feedback System of Urban rail Trains

A large amount of regenerative braking energy, caused by frequent braking of urban rail trains, has not been effectively utilized. For this problem, a regenerative braking energy feedback system of urban rail trains, using the sychronverter, is researched in this paper. The operation mechanism of synchronverters in both rectification mode and inverter mode is analyzed. Based on the calculation of regenerative braking energy, the model of the system is constructed, and the control strategy is discussed in detail. In the end, simulation results are given to verify the feasibility of the system.