IEEJ Transactions on Industry Applications
Online ISSN : 1348-8163
Print ISSN : 0913-6339
ISSN-L : 0913-6339
A Method of Single Phase PWM for an Independent Power Supply in Photovoltaic Power Generation Systems
Tomohisa NakaeYasunori KanamaruYoshifumi Amemiya
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Keywords: PWM
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1997 Volume 117 Issue 5 Pages 631-636

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Abstract

We propose a method of a single phase PWM for an independent power supply in photovoltaic power generation systems. This new PWM is derived from comparing levels of signal waves with ones of carrier waves which have bipolar swing different from unipolar one in the conventional PWM. In this PWM, We can use a battery with lower voltage in combination with the photovoltaic power generation; fundamental level of output voltage is raised by about 11%, though poor in quality of waveforms.

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© The Institute of Electrical Engineers of Japan
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