An investigation of switching and conduction losses in inverters under varying inductor ripple current

Wolf M. ; Du T. Mouton H. ; Van Der Merwe J.W. ; Koeslag F. (2009)

Conference Paper

This paper presents an accurate method of calculating the switching device losses in a half bridge DC-AC inverter. The analysis is based on an existing numerical method of calculating the inductor ripple current. The losses are calculated by replicating the exact current waveform flowing through the switching devices. This method allows for a more accurate loss calculation than the well-known existing analytical methods. The different methods are discussed and the results are compared. © 2009 IEEE.

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