Boost Integrated Three-Phase Solar Inverter using Current Unfolding and Active Damping Methods

Ha Pham, N; Mannen, T; Wada, K

Boost Integrated Three-Phase Solar Inverter using Current Unfolding and Active Damping Methods

Ha Pham, N Mannen, T Wada, K

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Publication Type:: Conference Proceeding
Citation:: 2018 International Power Electronics Conference, IPEC-Niigata - ECCE Asia 2018, 2018, pp. 1414 - 1420
Issue Date:: 2018-10-22

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Field	Value	Language
dc.contributor.author	Ha Pham, N	en_US
dc.contributor.author	Mannen, T	en_US
dc.contributor.author	Wada, K	en_US
dc.date.available	2020-10-31T18:04:38Z
dc.date.issued	2018-10-22	en_US
dc.identifier.citation	2018 International Power Electronics Conference, IPEC-Niigata - ECCE Asia 2018, 2018, pp. 1414 - 1420	en_US
dc.identifier.isbn	9784886864055	en_US
dc.identifier.uri	http://hdl.handle.net/10453/129660
dc.description.abstract	© 2018 IEEJ Industry Application Society. This paper proposes a three-phase grid connected solar inverter with integrated boost function. The circuit operating principle is based on current unfolding and injection method, which is similar to that of a SWISS rectifier. This approach requires only two high frequency switches operating at only half voltage stress, thus leading to a significant reduction in switching losses. Other switches only operate at line frequency, and therefore can be optimized to reduce conduction losses. The proposed inverter therefore can deliver high efficiency. This paper discusses the basic operating principle as well as control method for the inverter. It is revealed that the output currents of the proposed inverter contains intrinsic oscillation due to current unfolding operation. In order to solve this problem, an active damping method is proposed to stabilize the operation. As a result, stable operation of the proposed method is confirmed by simulation. The feasibility of the proposed inverter is also confirmed using a mini laboratory prototype.	en_US
dc.relation.ispartof	2018 International Power Electronics Conference, IPEC-Niigata - ECCE Asia 2018	en_US
dc.relation.isbasedon	10.23919/IPEC.2018.8507806	en_US
dc.rights	info:eu-repo/semantics/openAccess
dc.title	Boost Integrated Three-Phase Solar Inverter using Current Unfolding and Active Damping Methods	en_US
dc.type	Conference Proceeding
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	open_access	*
pubs.publication-status	Published	en_US

Abstract:

© 2018 IEEJ Industry Application Society. This paper proposes a three-phase grid connected solar inverter with integrated boost function. The circuit operating principle is based on current unfolding and injection method, which is similar to that of a SWISS rectifier. This approach requires only two high frequency switches operating at only half voltage stress, thus leading to a significant reduction in switching losses. Other switches only operate at line frequency, and therefore can be optimized to reduce conduction losses. The proposed inverter therefore can deliver high efficiency. This paper discusses the basic operating principle as well as control method for the inverter. It is revealed that the output currents of the proposed inverter contains intrinsic oscillation due to current unfolding operation. In order to solve this problem, an active damping method is proposed to stabilize the operation. As a result, stable operation of the proposed method is confirmed by simulation. The feasibility of the proposed inverter is also confirmed using a mini laboratory prototype.

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http://hdl.handle.net/10453/129660