A current-source grid-connected converter topology for Photovoltaic systems
Date
2006
Authors
Ertasgin, G.
Whaley, D.
Ertugrul, N.
Soong, W.
Editors
Akhtar Kalam,
Advisors
Journal Title
Journal ISSN
Volume Title
Type:
Conference paper
Citation
Proceedings of the 2006 Australasian Universities Power Engineering Conference (AUPEC'06), 10-13 December 2006, Melbourne, Australia / pp. www1-6
Statement of Responsibility
G. Ertasgin, D.M. Whaley, N. Ertugrul and W.L. Soong
Conference Name
Australasian Universities Power Engineering Conference (16th : 2006 : Melbourne, Australia)
Abstract
This paper investigates the performance of a gridconnected current-source converter topology for PV cells. The constant current source is realised by a large DC link inductor connected in series with the PV panel. A boost switch (named as current waveshaper) is used to produce a modulated output current that resembles the rectified grid voltage, which is in-phase with the grid. An H-bridge inverter with line-frequency commutated thyristors “unfolds” the output of the current waveshaper to produce a sinusoidal AC output current. The proposed converter concept is verified with simulations and preliminary experimental results.