Digital Signal Processing Based Speed Control of Induction Motor Drive System

This paper presents the high processing speed and the control accuracy of the DSPIC which allows sophisticated control technique to be used to build the circuit. The control circuit designed is realized on a digital signal controller DSPIC30F4011 based on voltage/frequency (v/f). Which is specially designed to have an accurate control on the three phase induction motor. The controller in the circuit consists of faster generation of the voltage and frequency inputs of sine wave in PWM. The inner sine generation using the voltage and frequency components, the speed control of a three phase induction motor can be handled accurately and a smoother control can be obtained. The experimental results for the speed (v/f) control of the three phase induction motor drive controlled by a digital signal controller DSPIC30F4011 chip has been observed with the effectiveness of the proposed scheme