Analysis of Z-Source Inverter Fed Brushless Dc Motor

Abstract

The essential goal of this report is to minimize torque ripples and total harmonic distortions, which will enhance the performance of a BLDC motor (Brushless DC motor). Because undesirable torque pulsations of motor leads to oscillations of speed and excitation resonances at mechanical portions of the drive, Which in turn leads to visible vibrations and acoustic noise in high precision machines and there by reduction in the life time of the machine. This paper presents commutation torque ripple and Total harmonic distortion comparison analysis of a Z-source inverter fed permanent magnet brushless dc motor (PMBLDC) with voltage source inverter fed brushless dc motor.