Research On Energy Management Strategy Of On-board Supercapacitor Energy Storage Trams

With the acceleration of the process of urban modernization,the number of urban cars has increased greatly,the pressure of urban traffic has doubled,traffic congestion has become serious,and the global energy crisis and air pollution have followed.Compared with other public transportation modes,the vehicle-mounted super capacitor energy storage tram with 100 % low floor technology has outstanding advantages;However,due to the characteristics of super capacitors,the energy density is low,so it is of great practical significance to study the energy management of trams.The main contents of this paper include the following aspects:(1)Based on the analysis of traction characteristics and motion model of trams,the energy consumption model of trams is established;(2)On the basis of the energy consumption model of trams,an energy-saving optimization objective function of trams is established;Then the particle swarm optimization algorithm based on competition mechanism is studied and the energy consumption model is solved,and the running energy consumption of tram is simulated;Simulation results show that compared with the actual operation energy consumption,the energy can be saved by 6.3 % by using the timing energy-saving operation strategy;(3)Based on the simulation of energy consumption,from the perspective of energy management,the emergency plan that the tram can take when the charging device of the station fails is given,and based on this,the design plan of Guangzhou Zhuhai tram THZ1 line is optimized.