双级矩阵变换器-永磁同步电动机无速度传感器矢量控制

TSMC-PMSM Speed Sensorless Vector Control

双级矩阵变换器(TSMC)具有高功率因数、低谐波污染等优点,在永磁同步电动机(PMSM)调速系统中具有良好的应用前景。传统TSMC-PMSM系统中使用速度传感器,给系统带来了成本高、体积大、易受干扰等问题。为解决这些问题,以Popov稳定性理论为基础参考自适应法(MRAS)设计了模型;与TSMC-PMSM的矢量控制策略结合,提出了一种TSMC-PMSM的无速度传感器矢量控制策略。在Matlab/Simulink中进行系统仿真,结果表明:该控制策略实现了无速度传感器矢量控制,辨识速度快,辨识精度高,且系统动静态性能良好。

With the advantages of high power factor and low harmonic pollution,the two-stage matrix converter(TSMC)has a good application prospect in the speed control system of permanent magnet synchronous motor(PMSM).The speed sensor in the traditional TSMC-PMSM system has problems such as high cost,large size,and susceptibility to interference to the system.In order to solve these problems,a model reference adaptive algorithm(MRAS)was designed based on Popov’s stability theory,combined with the TSMC-PMSM vector control strategy,and a TSMC-PMSM speed sensorless vector control strategy was proposed.The system simulation in Matlab/Simulink shows that the control strategy realizes speed sensorless vector control,with fast identification speed,high identification accuracy,and good system dynamic and static performance.