在计算机上实现直流电动机的脉宽调速、双闭环晶闸管调速的Simulink仿真，可以较为形象的观察电动机的调速全过程，同时可以改变相关参数来实现不同情况下的调速过程。-The computer realization of the PWM DC Motor Speed Control, dual-closed-loop speed control thyristor Simulink simulation, the image can be observed the whole process of