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Lu Jingtao,Zhu Chengkun,Li Xin 대한전기학회 2023 Journal of Electrical Engineering & Technology Vol.18 No.5
With the continuous increase of electric multiple unit (EMU) train service life, the train will be out of operation, but there are still some parts on the train can work normally. When EMU trains operate in regenerative braking state, a large amount of energy will be returned to the traction grid. In this paper, the decommissioned train equipment is selected, and the energy conversion method is considered, and a new regenerative braking energy recovery and utilization method is proposed, which is composed of decommissioned power converters, traction motors and vortex spring energy storage devices using mechanical elastic energy storage. And the energy storage system is constructed by feasibility analysis. This method provides a new idea for the reuse of retired equipment.