Minimization of wiring inductance in high power IGBT inverter

The wiring inductance is one of main causes limiting the use of the inverter in hard commutation mode, particularly when voltage, current and switching frequency are increased. The busbar technology is the means that allows one to reach low wiring inductance between DC source and power switches in s...

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Bibliographic Details
Published in:IEEE transactions on power delivery 2000-04, Vol.15 (2), p.551-555
Main Authors: Lounis, Z., Rasoanarivo, I., Davat, B.
Format: Article
Language:English
Subjects:
Busbars
Circuit simulation
Circuit testing
Constraining
Direct current
Electric potential
Inductance
Insulated gate bipolar transistors
Inverters
Minimization
Snubbers
Switching frequency
Voltage
Wiring
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Summary:The wiring inductance is one of main causes limiting the use of the inverter in hard commutation mode, particularly when voltage, current and switching frequency are increased. The busbar technology is the means that allows one to reach low wiring inductance between DC source and power switches in spite of relatively long connections. This paper deals with studies of busbar structure applied to the high power inverters in order to improve their performances. Two structures of wiring are tested; the traditional one and busbar technology. Experimental and simulation results show that this last technique permits to obtain very low wiring inductance so that no snubber circuits are needed.
ISSN:0885-8977
1937-4208
DOI:10.1109/61.852983