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Conference Paper: Switching characteristics and efficiency improvement with auxiliaryresonant snubber based soft-switching inverters

TitleSwitching characteristics and efficiency improvement with auxiliaryresonant snubber based soft-switching inverters
Authors
KeywordsAeronautics
Space flight
Issue Date1998
PublisherIEEE.
Citation
The 29th IEEE Power Electronics Specialists Conference, Fukuoka, Japan, 17-22 May 1998 In Historic Title IEEE Power Electronics Specialists Conference Record, 1998, v. 1, p. 429-435 How to Cite?
AbstractThe auxiliary resonant snubber inverter (RSI) has demonstrated superiority in reduction of switching losses and dv/dt. It was found that the overall inverter system efficiency might not be improved if the resonant current was not controlled in accordance with the load current. This paper proposes an improved control scheme to minimize the operation of auxiliary circuit for efficiency improvement. The principle of this control scheme is to vary the resonant current with variable timing control based on the load current magnitude and to disable the auxiliary circuit operation when diode freewheeling occurs after switching. To illustrate the operation of this control scheme, this paper compares the switching characteristics and inverter power loss of hard-switching inverter, RSI with fixed-timing and variable-timing control and RSI with the proposed control scheme. Experimental results fully agree with the analyses and prove that the proposed control scheme is suitable for RSI to achieve better operating conditions.
Persistent Identifierhttp://hdl.handle.net/10722/46037
ISSN

 

DC FieldValueLanguage
dc.contributor.authorChan, CCen_HK
dc.contributor.authorChau, KTen_HK
dc.contributor.authorChan, DTWen_HK
dc.contributor.authorYao, Jen_HK
dc.contributor.authorLai, JSen_HK
dc.contributor.authorLi, Yen_HK
dc.date.accessioned2007-10-30T06:41:10Z-
dc.date.available2007-10-30T06:41:10Z-
dc.date.issued1998en_HK
dc.identifier.citationThe 29th IEEE Power Electronics Specialists Conference, Fukuoka, Japan, 17-22 May 1998 In Historic Title IEEE Power Electronics Specialists Conference Record, 1998, v. 1, p. 429-435en_HK
dc.identifier.issn0275-9306en_HK
dc.identifier.urihttp://hdl.handle.net/10722/46037-
dc.description.abstractThe auxiliary resonant snubber inverter (RSI) has demonstrated superiority in reduction of switching losses and dv/dt. It was found that the overall inverter system efficiency might not be improved if the resonant current was not controlled in accordance with the load current. This paper proposes an improved control scheme to minimize the operation of auxiliary circuit for efficiency improvement. The principle of this control scheme is to vary the resonant current with variable timing control based on the load current magnitude and to disable the auxiliary circuit operation when diode freewheeling occurs after switching. To illustrate the operation of this control scheme, this paper compares the switching characteristics and inverter power loss of hard-switching inverter, RSI with fixed-timing and variable-timing control and RSI with the proposed control scheme. Experimental results fully agree with the analyses and prove that the proposed control scheme is suitable for RSI to achieve better operating conditions.en_HK
dc.languageengen_HK
dc.publisherIEEE.en_HK
dc.relation.ispartofIEEE Power Electronics Specialists Conference Record-
dc.rights©1998 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.en_HK
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.subjectAeronauticsen_HK
dc.subjectSpace flighten_HK
dc.titleSwitching characteristics and efficiency improvement with auxiliaryresonant snubber based soft-switching invertersen_HK
dc.typeConference_Paperen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0275-9306&volume=1&spage=429&epage=435&date=1998&atitle=Switching+characteristics+and+efficiency+improvement+with+auxiliaryresonant+snubber+based+soft-switching+invertersen_HK
dc.identifier.emailChan, CC: ccchan@eee.hku.hk-
dc.identifier.emailChau, KT: ktchau@eee.hku.hk-
dc.description.naturepublished_or_final_versionen_HK
dc.identifier.doi10.1109/PESC.1998.701934en_HK
dc.identifier.hkuros33999-
dc.identifier.hkuros43948-
dc.identifier.volume1-
dc.identifier.spage429-
dc.identifier.epage435-
dc.customcontrol.immutablesml 151026 - merged-

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