Speed Control of PMDC Motor

Abstract

This paper is about speed control of permanent magnet DC shunt motor using a buck converter as chopper. The buck converter receives firing signals from the controller and produces the output voltage accordingly which is used to maintain the speed of the DC motor at constant speed. The closed loop control has two main loops, one is inner current control loop and outer speed control loop. The controller used for closed loop control is PI controller which is simulated using MATLAB(SIMULINK) software.