Design of Optimized Speed Controller of DC Motor Using Chopper

Sayantani Dey, Samrat Malakar, Mahuya Panda

Abstract: The objective of the present work is to design an optimized filter to be used as an automatic speed controller of DC motors to make it work efficiently in a man-less environment. The optimization has been achieved by Modulus Hugging Approach for the design of the speed controller transfer function. The stability criterion is graphically analyzed and tested for closed loop speed control operation of the DC motor. The proposed methodology has been tested and verified in both MATLAB Simulink environment and programming. The proposed methodology can be implemented for industrial automation purposes e.g. automatic speed adjustment of conveyor belts for sudden change of weights of its carrying loads, automatic speed adjustment of the rolling shaft of the plate roller machine while the diameter of the bobbin consisting sheets are gradually increasing, etc.

Keywords: Optimized Filter, Speed Control, Modulus Hugging Approach, PI Controller, Separately Excited DC Motor