采用转矩电流双闭环控制，用DSP控制电机输出力矩-Double-loop control using torque current，control the motor output torque with DSP

在PLC控制原理及运动控制的理论的基础之上，介绍了基于PLC的双闭环直流电机的调速系统。进一步探讨了关于PLC控制的双闭环调速系统的实现方法和实现过程中亟待解决的问题。-The Design of DC motor Double Closed¬ -loops system Based on PLC

永磁同步电机无位置传感器双闭环 1000转左右时运行可靠波形非常好-Permanent magnet synchronous motor without position sensor double closed loop 1000 rpm when running reliable waveform is very good