BibTeX:

@article{IJIRSTV2I10077,
     title={Speed Control of Dc Motor Drive System Using PWM Control Technique},
     author={Sindhu BM},
     journal={International Journal for Innovative Research in Science & Technology},
     volume={2},
     number={10},
     pages={228--232},
     year={},
     url={http://www.ijirst.org/articles/IJIRSTV2I10077.pdf},
     publisher={IJIRST (International Journal for Innovative Research in Science & Technology)},
}

Chopper can be used as a converter to control the speed of separately excited DC motor. The speed control can be achieved above or below the rated speed. Controller receives the signal from the chopper firing circuit and then the chopper gives variable voltage to the armature of the motor for achieving desired speed. There are two control loops, one for controlling current and another for speed. The controller used is Proportional-Integral type which removes the delay and provides fast control. Modeling of separately excited DC motor is done. The complete layout of DC drive mechanism is obtained. The designing of current and speed controller is carried out. After obtaining the complete model of DC drive system, the model is simulated using MATLAB (SIMULINK).

separately excited DC motor, Proportional-Integral type converter, Simulink, PWM control