Small-Signal Modeling and Comprehensive Analysis of Magnetically Coupled Impedance-Source Converters

Forouzesh, M; Siwakoti, YP; Blaabjerg, F; Hasanpour, S

Small-Signal Modeling and Comprehensive Analysis of Magnetically Coupled Impedance-Source Converters

Forouzesh, M Siwakoti, YP

Blaabjerg, F Hasanpour, S

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Publication Type:: Journal Article
Citation:: IEEE Transactions on Power Electronics, 2016, 31 (11), pp. 7621 - 7641
Issue Date:: 2016-11-01

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Field	Value	Language
dc.contributor.author	Forouzesh, M	en_US
dc.contributor.author	Siwakoti, YP https://orcid.org/0000-0002-3869-412X	en_US
dc.contributor.author	Blaabjerg, F	en_US
dc.contributor.author	Hasanpour, S	en_US
dc.date.issued	2016-11-01	en_US
dc.identifier.citation	IEEE Transactions on Power Electronics, 2016, 31 (11), pp. 7621 - 7641	en_US
dc.identifier.issn	0885-8993	en_US
dc.identifier.uri	http://hdl.handle.net/10453/105634
dc.description.abstract	© 2016 IEEE. Magnetically coupled impedance-source (MCIS) networks are recently introduced impedance networks intended for various high-boost applications. It employs coupled magnetic in the circuit to achieve higher voltage gain. Various MCIS networks have been proposed in the literature for myriad applications; however, due to effective role of system modeling in the closed-loop controller design, this paper is allocated to small-signal modeling and analysis of MCIS converters. The modeling is performed by means of the circuit averaging and averaged switch technique. A generalized small-signal derivation is demonstrated for pulse width modulation (PWM) MCIS converters and it is shown that the derived transfer functions can simply be applied to Y-source, Γ-source, and T-source impedance networks. Various transfer functions for capacitor voltage, output voltage, magnetizing current, input and output impedance are derived and have been validated through frequency and dynamic responses of computer simulation results. In addition, a comprehensive analysis has been done for all mentioned PWM MCIS converters regarding their circuit parameters. Furthermore, the effect of considering the equivalent series resistances of capacitor and inductor on the stability margin of MCIS converters is revealed in this paper. Finally, in order to validate the derived transfer functions and to consolidate the perfumed analysis, experimental results are presented for all mentioned MCIS converters.	en_US
dc.relation.ispartof	IEEE Transactions on Power Electronics	en_US
dc.relation.isbasedon	10.1109/TPEL.2016.2553849	en_US
dc.subject.classification	Electrical & Electronic Engineering	en_US
dc.title	Small-Signal Modeling and Comprehensive Analysis of Magnetically Coupled Impedance-Source Converters	en_US
dc.type	Journal Article
utslib.citation.volume	11	en_US
utslib.citation.volume	31	en_US
utslib.for	0906 Electrical and Electronic Engineering	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Electrical and Data Engineering
utslib.copyright.status	closed_access
pubs.issue	11	en_US
pubs.publication-status	Published	en_US
pubs.volume	31	en_US

Abstract:

© 2016 IEEE. Magnetically coupled impedance-source (MCIS) networks are recently introduced impedance networks intended for various high-boost applications. It employs coupled magnetic in the circuit to achieve higher voltage gain. Various MCIS networks have been proposed in the literature for myriad applications; however, due to effective role of system modeling in the closed-loop controller design, this paper is allocated to small-signal modeling and analysis of MCIS converters. The modeling is performed by means of the circuit averaging and averaged switch technique. A generalized small-signal derivation is demonstrated for pulse width modulation (PWM) MCIS converters and it is shown that the derived transfer functions can simply be applied to Y-source, Γ-source, and T-source impedance networks. Various transfer functions for capacitor voltage, output voltage, magnetizing current, input and output impedance are derived and have been validated through frequency and dynamic responses of computer simulation results. In addition, a comprehensive analysis has been done for all mentioned PWM MCIS converters regarding their circuit parameters. Furthermore, the effect of considering the equivalent series resistances of capacitor and inductor on the stability margin of MCIS converters is revealed in this paper. Finally, in order to validate the derived transfer functions and to consolidate the perfumed analysis, experimental results are presented for all mentioned MCIS converters.

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http://hdl.handle.net/10453/105634