DSP based close- loop speed control system for DC motor using dual converter

The speed control of DC motor is very crucial in applications where precision and protection is required. Dual converters are used for four-quadrant operation of DC drive. To implement complex control algorithms to control the speed and torque in reversible drives that require precise control we need to use a controller that has high accuracy. In this paper we present a dual converter based closed loop speed control system for a permanent magnet DC motor using processor DSPIC 30F 6012A. PID control algorithm has been used to control motor speed by operating Dual converter in non-circulating current control mode. The experimental results are presented which show that the speed is tracked with an accuracy of 98.42%.