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

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...

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Bibliographic Details
Main Authors: Wolf, M., du T. Mouton, H., van der Merwe, J.W., Koeslag, F.
Format: Conference Proceeding
Language:English
Subjects:
Bridge circuits
Capacitors
Diodes
Inductors
Insulated gate bipolar transistors
Loss measurement
Pulse width modulation
Pulse width modulation inverters
Topology
Voltage
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Description
Summary: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.
ISSN:2153-0025
2153-0033
DOI:10.1109/AFRCON.2009.5308307