Comparative Analysis On Modulation Techiniques HCCPWM,SPWM and MSPWM For a Single Phase Full- Bridge Inverter

EasyChair Preprint 1709

Abstract

Fundamental basics of modulation techniques applied in inverter circuits for AC drives. This study investigate the comparative analysis of modulation techniques applied on the single-phase full bridge inverter topology. Simulink / MATLAB software was used to implement three modulation techniques such as SPWM, HCCPWM and MSPWM. The waveforms characteristics were analyzed based on their amplitude, frequency, and Total harmonic distortion (THD). Bipolar topology was used as a basic PWM generator on SPWM and MSPWM. MSPWM generated output waveforms for both current and voltage was having low THD and its output waveforms for both current and voltage to be pure sinusoidal. Therefore, this technique has been proved to be the best modulation technique compared to the SPWM and HCCPWM and can be used for AC drives application. All the modulation techniques have been implemented using the same parameters. As shown from the SPWM and HCC they have high values of THD and switching losses which results in the inverter having poor efficiency and less reliability. There are also other factors which plays a role in the harmonic contents presence such as modulation index. Inverter losses has been discussed and ways to improve the performance of the inverter.

Keyphrases: Alternating Current (A.C.), Direct Current (D.C.), Fundamental frequency (Fr), Hysteresis-band Current Control (HCCPWM), Phase Shifted Carrier PWM (PSCPWM), Pulse Width Modulation (PWM), Selective Harmonic Elimination (SHE), Sinusoidal Pulse Width (SPWM), Space Vector Pulse Width (SVPWM), Switching Frequency (Fs), Voltage Source Inverter (VSI)

@booklet{EasyChair:1709,
  author    = {Kingsley A. Ogudo and Josiah Makhubele},
  title     = {Comparative Analysis On Modulation Techiniques HCCPWM,SPWM and MSPWM For a Single Phase Full- Bridge Inverter},
  howpublished = {EasyChair Preprint 1709},
  year      = {EasyChair, 2019}}