Development of a High Efficiency Induction Motor and the Estimation of Energy Conservation Effect

Induction motors are widely used as traction motors on trains. Because energy loss from traction motors accounts for a large portion of energy consumption in commuter trains, highly efficient traction motors are very effective in saving energy. A high efficiency induction motor was therefore developed. Its efficiency was verified through analysis and tests with a prototype machine. This paper presents the calculation results of running simulations for estimating the energy conservation effect of the high efficiency induction motor. The results indicate that the energy consumption is reduced by 6% to 11%.