HFL micro inverter with front-end diode clamped multi-level inverter and half-wave cycloconverter

Nayanasiri, D.R., Vilathgamuwa, D.M., & Maskell, D.L. (2014) HFL micro inverter with front-end diode clamped multi-level inverter and half-wave cycloconverter. In Proceedings of the IEEE 23rd International Symposium on Industrial Electronics (ISIE 2014), IEEE, Istanbul, Turkey , pp. 503-508.

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Abstract

A high-frequency-link (HFL) micro inverter with a front-end diode clamped multi-level inverter and a grid-connected half-wave cycloconverter is proposed. The diode clamped multi-level inverter with an auxiliary capacitor is used to generate high-frequency (HF) three level quasi square-wave output and it is fed into a series resonant tank to obtain high frequency continuous sinusoidal current. The obtained continuous sinusoidal current is modulated by using the grid-connected half-wave cycloconverter to obtain grid synchronized output current in phase with the grid voltage. The phase shift power modulation is used with auxiliary capacitor at the front-end multi-level inverter to have soft-switching. The phase shift between the HFL resonant current and half-wave cycloconverter input voltage is modulated to obtain grid synchronized output current.

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ID Code: 75184
Item Type: Conference Paper
Refereed: Yes
Keywords: Diode-clamped multi-level inverter, Half-wave cycloconverter, High-frequency-link, Micro inverter, Phase shift modulation, Series resonant tank, Continuous conduction mode
DOI: 10.1109/ISIE.2014.6864664
ISBN: 9781479923991
Divisions: Current > Schools > School of Electrical Engineering & Computer Science
Current > QUT Faculties and Divisions > Science & Engineering Faculty
Copyright Owner: Copyright 2014 by IEEE
Deposited On: 18 Aug 2014 23:44
Last Modified: 19 Aug 2014 23:43

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