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Experimental Studies on a Novel Single-Phase Z-Source Inverter for Grid Connection of Renewable Energy Sources

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Authors
Rajakaruna, Sumedha
Date
2008
Type
Conference Paper

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Citation
Rajakaruna, S.. 2008. Experimental Studies on a Novel Single-Phase Z-Source Inverter for Grid Connection of Renewable Energy Sources, in 2008 Australasian Universities Power Engineering Conference, Dec 14 2008. Sydney, Australia: University of New South Wales.
Source Title
Proceedings of the 2008 Australasian Universities Power Engineering Conference
Source Conference
2008 Australasian Universities Power Engineering Conference
ISBN
Faculty
Department of Electrical and Computer Engineering
School of Engineering
Faculty of Science and Engineering
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Abstract

In order to supply power from a photovoltaic array or a fuel cell stack at a low dc voltage to a grid at a high ac voltage, a power conditioning unit capable of both voltage-boosting and inversion is required. Newly introduced Z-Source inverter is capable of achieving both these objectives by a single converterstage. This paper describes how a single-phase Z-Source inverter can be built for grid-connection of a photovoltaic array. Significant changes are needed in sizing the components and generating switching signals. Results of experimental investigations performed on a laboratory prototype are presented.