A Three- Phase Induction Motor Drive System with Power Factor Correcting Circuits for Electric Rubber Rolling Machine

Abstract

This paper presents a novel approach for electric rubber rolling machine as a three-phase induction motor drive system with power factor correcting circuits. The proposed approach was more efficient than the traditional ones in terms of lower total harmonic distortion and stability speed of the induction motor. Moreover, to reduce total harmonic distortion, the single-phase alternating current was converted to the three-phase one via a boost converter for its continuous condition mode. Besides, the V/f method was employed to control the induction motor speed. The particle swarm optimization using the integral time squared errors (an objective function) was applied to determine the control gain. Based on the photo type developed, the results indicated that the approach was able to correct the power factor of the source between 0.97 and 0.98, and the total harmonic distortion was 3.17 percent. This leads to the reduction of the reactive power of the generator; and consequently, the core loss of the electrical machine is decreased.