Studying the effect of over-modulation on the output voltage of three-phase single-stage grid-connected boost inverter

A. Abbas Elserougi, A. S. Abdel-Khalik, A. Massoud, S. Ahmed

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

Voltage boosting is very essential issue in renewable-energy fed applications. The classical two-stage power conversion process is typically used to interface the renewable energy sources to the grid. For better efficiency, single-stage inverters are recommended. In this paper, the performance of single-stage three-phase grid-connected boost inverter is investigated when its gain is extended by employing over-modulation technique. Using of over-modulation is compared with the employment of third order harmonic injection. The latter method can increase the inverter gain by 15% without distorting the inverter output voltage. The performance of extended gain grid-connected boost inverter is also tested during normal operation as well as in the presence of grid side disturbances. Simulation and experimental results are satisfactory. © 2013 Production and hosting by Elsevier B.V.
Original languageEnglish (US)
JournalAlexandria Engineering Journal
Volume52
Issue number3
DOIs
StatePublished - Jan 1 2013
Externally publishedYes

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