견인전동기의 정격운전점 선정에 따른 전동기의 무게와 견인력 비교

Comparison of weight and tractive effort of traction motor by choosing different rated operating point

Rated frequency of inverter driven induction motor for a traction system can be chosen lower or higher. Traction motor with higher rated frequency can be lighter than the lower. But the maximum torque must be checked, because it is very important for starting and acceleration and it should be reduced with high frequency operation. In the paper, two motors with different rated frequency are designed and compared.