Study on Energy-saving Technology of Train Operation Control on Xi'an Metro

Through summarizing the energy consumption status of urban rail transit in China, this paper puts forward the idea of studying the energy-saving technology of train operation control on Xi'an metro, compares the results between train actual operation and simulation operation of traction calculation software before and after regulating the signal system, and puts forward that Xi'an Metro Line 2 applying the energy-saving mode operation at peak times and the speed-decreasing mode operation at off-peak times, which achieves good energy-saving effects. Through studying the development trend of energysaving technology of train operation control, the paper puts forward that the optimum utilization of regenerative braking energy is the most effective approach of energy-saving in train operation organization, and makes quantitative analysis on the utilization of regenerative brake.