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The model simulates Chopper fed DC motor drive for speed control of DC
motor. Actual speed is compared with reference speed command and error is
manipulated by a PI controller whose output is the duty cycle. Duty cycle
in converted in PWM by comparing the duty cycle voltage with sawtooth
waveform. Pulses are applied to MOSFET controlling the chopper circuit.
Chopper circuit is basically a first quadrant buck converter.
翻译：
该模型模拟斩波直流电机驱动的直流电机速度控制。实际速度与参考速度指令，相对误差由 PI 控制
器的输出占空比控制。占空比转换 PWM 占空比的比较电压与锯齿波。脉冲应用 MOSFET 控制斩波电路
。斩波电路基本上是第一象限 Buck 变换器。
FUNCTION
Lab_session_2.mdl
代码：
