Synchronized SVPWM algorithm for overmodulation region for three-level VSI

Sreenivasappa B. Veeranna, Udaykumar R. Yaragatti, Abdul Rahiman Beig

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

21 Scopus citations

Abstract

Synchronization is essential for the satisfactory operation of VSI in high power applications. With proper selection of switching states it is possible to obtain synchronization and symmetry in space vector pulse width modulation (SVPWM) algorithm. A novel SVPWM based switching algorithm, which results in improved THD and increased fundamental voltage in overmodulation region by maintaining synchronization and symmetry is presented in this paper. A simple method to determine the switching sequence to achieve synchronization, quarter wave symmetry, half wave symmetry and three phase symmetry in overmodulation region is presented. The proposed algorithm is simulated and its performance in terms of the THD and magnitude of fundamental voltage of output is studied in the overmodulation region. The results show the improved performance of the proposed algorithm compared to the existing algorithms. The proposed algorithm is verified experimentally on a constant v/f three level VSI fed induction motor drive.

Original languageBritish English
Title of host publicationProceedings - IECON 2010, 36th Annual Conference of the IEEE Industrial Electronics Society
Pages1004-1010
Number of pages7
DOIs
StatePublished - 2010
Event36th Annual Conference of the IEEE Industrial Electronics Society, IECON 2010 - Glendale, AZ, United States
Duration: 7 Nov 201010 Nov 2010

Publication series

NameIECON Proceedings (Industrial Electronics Conference)

Conference

Conference36th Annual Conference of the IEEE Industrial Electronics Society, IECON 2010
Country/TerritoryUnited States
CityGlendale, AZ
Period7/11/1010/11/10

Keywords

  • Harmonic distortion
  • Induction motor drives
  • Pulse width modulated inverters
  • Pulse width modulation
  • Synchronization

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