使用最小二乘法对永磁同步电机进行参数辨识，在simulink中搭建了永磁同步电机模型，然后使用s函数写了最小二乘法。(Use the least square method to identify the parameters of the permanent magnet synchronous motor, build a permanent magnet synchronous motor model in simulink, and then use the s function to write the least square method.)