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,并在新型三电平空间矢量脉宽调制(SVPWM)简化算法基础上,运用MATLAB/Simulink实现对三电平异步电机无速度传感器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 asynchronous motor fed by three-level inverter was proposed. The scheme adopted indirect field oriented control (IFOC) method, three-level simplified SVPWM algorithm, and model reference adaptive system (MRAS) to realize the sensorless vector control simulation of asynchronous motor fed by three-level inverter in MAT- LAB/Simulink. The simulation results showed the system has good static and dynamic performance, and the validity of the proposed scheme was also proved.
出处
《电机与控制应用》
北大核心
2011年第11期16-19,29,共5页
Electric machines & control application