Design and analysis of single phase voltage source inverter using Unipolar and Bipolar pulse width modulation techniques

Jahangeer Soomro, Tayab D. Memon, M. A. Shah

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

25 Citations (Scopus)

Abstract

This research work is organized in two sections. Performance comparison of single phase half bridge inverter and single phase full bridge inverter is done in the first section. It is observed the output current and output voltage of full bridge inverter is twice and generates less total harmonic distortion as compared to half bridge inverter. In the second section, performance comparison of Unipolar and Bipolar PWM is presented for single phase full bridge inverter with and without filter in MATLAB SIMULINK. The proper choice of Frequency Modulation Ratio (mf) is discussed in detail for bipolar and unipolar PWM scheme. Non integer value of mf results in sub-harmonics which are nearly unfilterable and cause significant losses in any power system application. It is observed that Unipolar PWM has an advantage in terms of efficiency; it offers less switching losses and generates less EMI. Also, the switching frequency becomes twice and voltage amplitude is reduced to half in case of unipolar PWM. Therefore, total harmonic distortion (THD) content of output current and output voltage is decreased, thus improving the power quality and making filter easier.

Original languageEnglish
Title of host publication2016 International Conference on Advances in Electrical, Electronic and Systems Engineering, ICAEES 2016
EditorsRosdiadee Nordin, Mohd Fais Mansor, Mahamod Ismail
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages277-282
Number of pages6
ISBN (Electronic)9781509028894
DOIs
Publication statusPublished - 27 Mar 2017
Externally publishedYes
Event2016 International Conference on Advances in Electrical, Electronic and Systems Engineering, ICAEES 2016 - Putrajaya, Malaysia
Duration: 14 Nov 201616 Nov 2016

Publication series

Name2016 International Conference on Advances in Electrical, Electronic and Systems Engineering, ICAEES 2016

Conference

Conference2016 International Conference on Advances in Electrical, Electronic and Systems Engineering, ICAEES 2016
Country/TerritoryMalaysia
CityPutrajaya
Period14/11/1616/11/16

Keywords

  • Bipolar PWM
  • Full Bridge Inverter
  • Half Bridge Inverter
  • Power Total Harmonic Distortion
  • Pulse Width Modulation
  • Unipolar PWM

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