Soft switching non-isolated current-fed inverter for PV/Fuel-cell applications

Radha Sree Krishna Moorthy, Akshay Kumar Rathore

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

5 Scopus citations

Abstract

A non-isolated current-fed inverter for fuel-cell/PV applications is propsoed. An impulse commutated current-fed half-bridge converter is selected as the front-end dc/dc converter that provides high voltage gain required for such applications. Impulse commutation enables zero current switching (ZCS) of the semiconductor devices. The devices' voltage gets naturally clamped owing to impulse commutation eliminating the turn-off spike. Voltage doubler has been employed to reduce the device voltage ratings and enhance the voltage gain. Variable frequency modulation ensures output voltage regulation with input and load voltage variations. A 500 W prototype was developed in the laboratory to demonstrate the inverter performance and verify the proposed operation and claims.

Original languageEnglish
Title of host publication2014 IEEE International Conference on Power Electronics, Drives and Energy Systems, PEDES 2014
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781479963737
DOIs
StatePublished - Feb 12 2014
Externally publishedYes
Event2014 IEEE International Conference on Power Electronics, Drives and Energy Systems, PEDES 2014 - Mumbai, India
Duration: Dec 16 2014Dec 19 2014

Publication series

Name2014 IEEE International Conference on Power Electronics, Drives and Energy Systems, PEDES 2014

Conference

Conference2014 IEEE International Conference on Power Electronics, Drives and Energy Systems, PEDES 2014
Country/TerritoryIndia
CityMumbai
Period12/16/1412/19/14

Keywords

  • Current-fed converter
  • Impulse commutation
  • Variable frequency modulation
  • Zero current switching

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