基于定子磁链的异步电动机软启动仿真研究

Research on soft-starter based on stator flux linkage

提出了一种基于定子磁链的电动机转矩控制的软启动器.该软起动器根据定子磁链估算电动机转矩,并根据所估算的值实现电动机转矩斜坡控制的软起动.在Matlab/Simulink环境下对该软起动进行建模仿真,仿真结果表明基于定子磁链转矩估计的软起动控制方法可行,并且该启动方式能达到了预定的控制效果.

This paper presents a torque slope control of soft starter,which relys on the stator flux linkage to estimate the torque of electromagnetic motor,and the estimation of the motor torque to realize torque control of soft start-up of the electric motor. Thace are simulated in Matlab/Simulink environment and the results show that the method of using torque estimation based on the stator flux linkage to implement soft start control is correct and effective. The control mode achieves the expected control effect.