中文说明：实现永磁电机速度闭环控制，转矩阶跃的情况下，转速稳定输出。波形效果很好，但是不是采用svpwm。实现永磁电机速度闭环控制，转矩阶跃的情况下，转速稳定输出。波形效果很好，但是不是采用svpwm。
English Description：
Achieving closed-loop speed control of permanent magnet motor, torque step case, fluctuations in the speed of the output. Wave effect is very good, but instead of svpwm. Achieving closed-loop speed control of permanent magnet motor, torque step case, fluctuations in the speed of the output. Wave effect is very good, but instead of svpwm.