异步电动机起动过程中转轴上的扭矩振荡现象研究

异步电动机带大惯性负载直接起动时，转轴上会产生很大的扭矩振荡。详细分析了产生扭矩振荡的原因，探讨了软起动对扭矩振荡的影响。仿真结果表明，采用晶闸管软起动装置可以在不影响电动机起动性能的前提下，有效抑制转轴上的扭矩振荡。

Study on Torsional Torque Oscillation in Starting Process of Induction Motor

Aim at the high torsional torque building up on elastic shaft during the starting process of induction motor driving large inertia load, the reason of torsional torque oscillation and the effect of soft-starting on shaft torque were discussed in this paper, it showed that the torsional torque oscillation was substantially reduced with thyristor soft-starting without affecting the starting performance of the induction motor.