Study on Traction Energy Consumption of Linear Induction Motor Rail Transit System

High traction energy consumption is one of the shortcomings of the linear induction motor rail transit system(LIM system).This has prohibited the widespread application of the urban rail transit(URT) mode in China.In this paper,the energy consumption features of URT and the energy consumption state of the operating LIM systems are introduced.Comparative analysis are made to the research results and data of the traction energy consumption some LIM systems,such as the traction energy consumption study based on motor efficiency,the simulation study on traction energy consumption,and the tests and simulation studies on the traction energy consumption of Guangzhou Metro Line 4.Based on the principle of for sample transportation task,the traction energy consumption of the LIM system and the rotary motor rail transit system(RM system) are simulated in underground sections and viaduct sections of Chongqing Metro Line 1.The comparative studies show that the traction energy consumption of LIM system is higher than that of RM system by at least 25 percent.