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Type: Conference paper
Title: Implementation and performance evaluation of a low-cost current-source grid-connected inverter for PV applications
Author: Ertasgin, G.
Whaley, D.
Ertugrul, N.
Soong, W.
Citation: Proceedings of the 2008 IEEE International Conference on Sustainable Energy Technologies, 2008: pp.939-944
Publisher: IEEE
Publisher Place: CD
Issue Date: 2008
ISBN: 9781424418886
Conference Name: IEEE International Conference on Sustainable Energy Technologies (2008 : Singapore)
Statement of
Ertasgin, G.; Whaley, D.M.; Ertugrul, N. and Soong, W.L.
Abstract: This paper investigates the performance of a 150 W single-phase current-source grid-connected inverter for PV cells. The constant-current source is realised using a DC link inductor and the inverter is implemented using a single boost switch, a H-bridge inverter and an LC output filter. Although the DC link inductor causes the inverter to be less efficient than an equivalent voltage-source inverter, it offers lower cost due to the zero-current switching and lower number of components. In addition, the output current is easily controlled using the boost switch and simple open-loop control. The inverter input is simulated using the dark I-V configuration of two PV cells. The advantage of this arrangement is the ability to conveniently simulate the PV cell over a wide range of irradiances. The entire system is implemented to verify the simulation results. Furthermore, the paper also examines the proposed inverterpsilas ability to deliver sinusoidal current to the grid whilst meeting the appropriate standards, i.e. total harmonic distortion and power factor requirements. Additionally, the inverterpsilas ability to maximise the PV cell and inverter output power is shown.
DOI: 10.1109/ICSET.2008.4747142
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Appears in Collections:Aurora harvest 5
Electrical and Electronic Engineering publications
Environment Institute publications

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