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A grid-connected photovoltaic power conversion system with single-phase multilevel inverter Ersoy Beser , Birol Arifoglu , Sabri Camur , Esra Kandemir Beser, Department of Electrical Engineering, Kocaeli University, Umuttepe Campus, 41380 Kocaeli, Received 7 May 2010. Revised 26 September 2010. Accepted 28 September 2010. Available online 20 October 2010.?Communicated by: Associate Editor Nicola Romeo. HYPERLINK /10.1016/j.solener.2010.09.011 \t doilink /10.1016/j.solener.2010.09.011, HYPERLINK /science/help/doi.htm \t sdhelp How to Cite or Link Using DOI HYPERLINK /science?_ob=RedirectURL_method=outwardLink_partnerName=656_eid=1-s2.0-S0038092pii=S0038092origin=article_zone=art_page_targetURL=http%3A%2F%2F%2Finward%2Fcitedby.url%3Feid%3D2-s2.0-78349313208%26partnerID%3D10%26rel%3DR3.0.0%26md5%3Dabff1bb0ea272380746d947aa5d57fa9_acct=C000056941_version=1_userid=2331572md5=83aab5e112cdc3adf5f859b6b8ed4ba5 \t outwardLink Cited by in Scopus (4) HYPERLINK /science?_ob=RedirectURL_method=outwardLink_partnerName=936_eid=1-s2.0-S0038092pii=S0038092origin=article_zone=art_page_targetURL=https%3A%2F%2F%2FAppDispatchServlet%3FpublisherName%3DELS%26contentID%3DS003809226orderBeanReset%3Dtrue_acct=C000056941_version=1_userid=2331572md5=0071ba7579caa4a02fb4d3c5a6301d6a \t outwardLink Permissions Reprints Abstract This paper presents a grid-connected photovoltaic (PV) power conversion system based on a single-phase multilevel inverter. The proposed system fundamentally consists of PV arrays and a single-phase multilevel inverter structure. First, configuration and structural parts of the PV assisted inverter system are introduced in detail. To produce reference output voltage waves, a simple switching strategy based on calculating switching angles is improved. By calculated switching angles, the reference signal is produced as a multilevel shaped output voltage wave. The control algorithm and operational principles of th