基于参数辨识技术的永磁同步电动机参数测定

Precise PMSM parameter determination based on parameter identification technique

精确测定永磁同步电动机参数具有重要意义。基于dq0数学模型与直流衰减实验,采用最小二乘参数辨识方法,测定了一台7.5kWNdFeB永磁同步电动机的若干参数。通过实验结果与计算机仿真结果的对比分析可以看出,所辨识的参数是准确可靠的。

The precise determination of PMSM parameters is of great significance. Based on the PMSM mathematical model, the DC attenuation experiment and the parameter identification technique, this paper presents a feasible approach to determine PMSM parameters more precisely. The parameters of a 7.5 kW NdFeB PMSM identified by the approach are precise. It is shown that the proposed approach is valid and effective.