Energy-efficient train operation through regenerative braking energy exchange considering variant gradient

Abstract

To save energy consumption for the DC electric railway, regenerative braking energy between adjacent trains is very important. By adjusting the run curve of the train that receives RBE, we can effectively save energy. However, the energy that can be utilized between trains is constrained by many factors including motor efficiency, departure time interval, gradient, and so on. In this paper, we first introduce the composition and design method of energy-efficient operation for trains to utilize regenerative energy. Then, we discuss differences of the amount of regenerative energy utilization and suitable patterns of efficient train operations when depending on different vertical track profiles.