MATLAB / SIMULINK IMPLEMENTATION AND COMPARATIVE ANALYSIS OF THREE PHASE SINUSOIDAL PWM AND DIRECT POWER CONTROL TECHNIQUES

摘要

This paper presents the comparative analysis of sinusoidal Pulse width modulation (SPWM) technique and direct power control (DPC) Pulse width modulation technique for three-phase AC to DC converters using MATLAB/SIMULINK software. Pulse width modulation (PWM) techniques are frequently used due to improved performance such as unity power factor operation with reduced total harmonic distortion (THD) at ac mains. In this paper simulation models for both PWM techniques are simulated with closed loop at rated load condition and then comparative analysis has been done in terms of input current THD and power factor. DPC is the efficient technique because of the better performance.