High Performance Tiny Capacitor Development Using MATLAB for Harmonic Elimination in Symmetrical Full Bridge Circuit

Conference proceedings article

Authors/Editors

Ravi, Samikannu

Research Areas

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Publication Details

Author list: Nithya C, Kumarakrishnan V, Ravi S, Mohideen SR

Publisher: IEEE

Place: NEW YORK

Publication year: 2015

Number of pages: 4

eISBN: 978-1-4799-1753-2

Languages: English-Great Britain (EN-GB)

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Abstract

The harmonic disturbance that is caused by the double line frequency ripple power in the single phase AC/DC or DC/AC system. This issue can be eased through the installation of bulky electrolytic capacitors in the dc-link. Unfortunately, such passive filtering approach may inevitably lead to low power density and limited system lifetime. Symmetrical full-bridge circuit uses dc-link capacitors to absorb the ripple power. In this paper presents a symmetrical full bridge circuit which utilizes the dc-link. Capacitors to absorb the ripple power and the additional pair of switches and a small filtering inductor. By implementing four switches, we can reduce the capacitance as 22 mu f/400volt. Also by the help of PI controller the switching stress reduced with stable DC link voltage. As a result, the objectives of high-efficiency power conversion can be obtained.

Keywords

Filtering, Harmonics, Single phase system, Symmetrical full bridge circuit

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