Half-wave cycloconverter-based photovoltaic microinverter topology with phase-shift power modulation

Nayanasiri, D.R., Vilathgamuwa, D. Mahinda, & Maskell, D.L. (2013) Half-wave cycloconverter-based photovoltaic microinverter topology with phase-shift power modulation. IEEE Transactions on Power Electronics, 28(6), pp. 2700-2710.

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Abstract

A grid-connected microinverter with a reduced number of power conversion stages and fewer passive components is proposed. A high-frequency transformer and a series-resonant tank are used to interface the full-bridge inverter to the half-wave cycloconverter. All power switches are switched with zero-voltage switching. Phase-shift power modulation is used to control the output power of the inverter. A steady-state analysis of the proposed topology is presented to determine the average output power of the inverter. Analysis of soft switching of the full-bridge and the half-wave cycloconverter is presented with respect to voltage gain, quality factor, and phase shift of the inverter. Simulation and experimental results are presented to validate the operation of the proposed topology.

Impact and interest:

22 citations in Scopus
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18 citations in Web of Science®

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ID Code: 72487
Item Type: Journal Article
Refereed: Yes
Keywords: Full-bridge inverter, Half-wave cycloconverter, Microinverter, Phase-shift power modulation, Series-resonant circuit, Zero-voltage switching (ZVS)
DOI: 10.1109/TPEL.2012.2227502
ISSN: 1941-0107
Divisions: Current > Schools > School of Electrical Engineering & Computer Science
Current > QUT Faculties and Divisions > Science & Engineering Faculty
Copyright Owner: Copyright 2013 Institute of Electrical and Electronics Engineers
Deposited On: 03 Jun 2014 22:45
Last Modified: 14 Aug 2014 23:33

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