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Article: A practical circuit model of high frequency transformers in power electronic systems

TitleA practical circuit model of high frequency transformers in power electronic systems
Authors
KeywordsCore losses
High frequency transformer
Magnetic hysteresis
Power electronic system
Practical circuit model
Simulation
Stray capacitance
Thermal effect
Issue Date2007
PublisherInstitution of Engineers Australia
Citation
Australian Journal Of Electrical And Electronics Engineering, 2007, v. 3 n. 3, p. 211-221 How to Cite?
AbstractThis paper presents a practical circuit model of high frequency transformers in power electronic systems. All types of core losses (ie. the hysteresis, classical eddy current and anomalous losses) are included in the model. the thermal effect on magnetic hysteresis, the skin effect of eddy currents in magnetic cores and the effect of stray capacitances are also considered. This model can therefore accurately predict the performance and core losses of transformers used in high frequency switching circuits. The practical methods for determining the circuit parameters are developed and presented in the paper, providing crucial benefit for practical applications. The developed model has been applied to simulate the performance of a 500 W transformer in a full bridge inverter operated with square waveform voltage excitation of 25 kHz. The simulations are validated by the experimental results. © Institution of Engineers, Australia 2007.
Persistent Identifierhttp://hdl.handle.net/10722/136952
ISSN
2015 SCImago Journal Rankings: 0.116
References

 

DC FieldValueLanguage
dc.contributor.authorLu, HYen_HK
dc.contributor.authorZhu, JGen_HK
dc.contributor.authorGuo, YGen_HK
dc.contributor.authorHui, SYRen_HK
dc.date.accessioned2011-07-29T02:13:46Z-
dc.date.available2011-07-29T02:13:46Z-
dc.date.issued2007en_HK
dc.identifier.citationAustralian Journal Of Electrical And Electronics Engineering, 2007, v. 3 n. 3, p. 211-221en_HK
dc.identifier.issn1448-837Xen_HK
dc.identifier.urihttp://hdl.handle.net/10722/136952-
dc.description.abstractThis paper presents a practical circuit model of high frequency transformers in power electronic systems. All types of core losses (ie. the hysteresis, classical eddy current and anomalous losses) are included in the model. the thermal effect on magnetic hysteresis, the skin effect of eddy currents in magnetic cores and the effect of stray capacitances are also considered. This model can therefore accurately predict the performance and core losses of transformers used in high frequency switching circuits. The practical methods for determining the circuit parameters are developed and presented in the paper, providing crucial benefit for practical applications. The developed model has been applied to simulate the performance of a 500 W transformer in a full bridge inverter operated with square waveform voltage excitation of 25 kHz. The simulations are validated by the experimental results. © Institution of Engineers, Australia 2007.en_HK
dc.languageengen_US
dc.publisherInstitution of Engineers Australiaen_US
dc.relation.ispartofAustralian Journal of Electrical and Electronics Engineeringen_HK
dc.subjectCore lossesen_HK
dc.subjectHigh frequency transformeren_HK
dc.subjectMagnetic hysteresisen_HK
dc.subjectPower electronic systemen_HK
dc.subjectPractical circuit modelen_HK
dc.subjectSimulationen_HK
dc.subjectStray capacitanceen_HK
dc.subjectThermal effecten_HK
dc.titleA practical circuit model of high frequency transformers in power electronic systemsen_HK
dc.typeArticleen_HK
dc.identifier.emailHui, SYR:ronhui@eee.hku.hken_HK
dc.identifier.authorityHui, SYR=rp01510en_HK
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.scopuseid_2-s2.0-36148970919en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-36148970919&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume3en_HK
dc.identifier.issue3en_HK
dc.identifier.spage211en_HK
dc.identifier.epage221en_HK
dc.publisher.placeAustraliaen_HK
dc.identifier.scopusauthoridLu, HY=7404842588en_HK
dc.identifier.scopusauthoridZhu, JG=8095781900en_HK
dc.identifier.scopusauthoridGuo, YG=8300521600en_HK
dc.identifier.scopusauthoridHui, SYR=7202831744en_HK

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