摘要
为解决在中高压领域无速度传感器矢量控制速度辨识差的缺点,基于三电平电压源型逆变器,提出了一种异步电机无速度传感器矢量控制方案。该方案采用间接矢量控制(IFOC)策略,以模型参考自适应(MRAS)方法构造速度辨识系统,并在新型三电平SVPWM简化算法基础上,运用Matlab/Simulink实现对无速度传感器三电平异步电机矢量控制系统的仿真研究。仿真结果表明,所述控制方法正确有效,该系统具有较好的稳态特性和动态响应能力。
In order to improve the performance of speed estimator in middle-high voltage field, a speed sensorless control scheme for induction motor fed by three-level inverter was proposed. The scheme adopted indirect field oriented control （IFOC） method. The speed identification system was constructed by model reference adaptive system （MRAS） method. Based on new three-level simplified SVPWM algorithm, the sensorless vector control simulation of induction motor fed by three-level inverter was realized in Matlab/Simulink. The simulation results show that the system has good static and dynamic performance, and the validity of the proposed scheme is also proved.
出处
《电工电气》
2011年第11期6-9,28,共5页
Electrotechnics Electric
基金
中国矿业大学中央高校基本科研业务费专项资金项目(2010ZDP01A10)
