摘要
针对异步电机传统直接转矩控制系统中转矩脉动大,以及因电机负载波动等因素使调速性能变差的问题。构造了基于滑模变结构和SVM-DTC异步电机调速系统。仿真结果验证该策略减小异步电机的转矩和磁链脉动,对参数变化、干扰具有较强的鲁棒性,使得电机转速响应加快。
On the fact of the torque ripple is large in the traditional direct torque control （DTC） system of the asynchronous Motor and the problem of speed performance is made slow by the load fluctuations and other disturbance. An asynchronous motor speed control system based on the sliding mode variable structure and space vector pulse width modulation （SVM） is structured. Simulations research verifies that the proposed control scheme significantly reduces torque and flux ripple, and it also has strong robust to motor parameter and disturbance, increases the response speed.
出处
《电气技术》
2012年第12期13-17,共5页
Electrical Engineering
关键词
异步电机
直接转矩控制
空间电压矢量调制
滑模变结构
asynchronous motor
direct torque control
space vector modulation
sliding mode variable structure
