With the continuous development of electrified railways,energy saving and consumption reduction are essential for railway operation benefits.The paper focuses on the study of regenerative braking energy in railway locomotives.By analyzing the current state of regenerative energy and substation load characteristics on the Datong-Qinhuangdao Railway,a scheme for utilizing regenerative braking energy consisting of an energy integration device and a hybrid energy storage device was proposed.The paper elaborated on the system structure,working principles,divisional control strategies,and protection schemes for existing power supply equipment.Additionally,a fuzzy control strategy based on State of Charge feedback was proposed to optimize the power output of the energy storage system and fully utilize the physical characteristics of the hybrid energy storage system.Simulation with measured data was conducted to verify the effectiveness and feasibility of the proposed strategy.
electrified railwayregenerative braking energyenergy integration devicehybrid energy storage systemState of Charge feedback
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