NDLI: Modular multilevel converter for large-scale multistring photovoltaic energy conversion system

Content Provider	IEEE Xplore Digital Library
Author	Rivera, S. Bin Wu Lizana, R. Kouro, S. Perez, M. Rodriguez, J.
Copyright Year	2013
Description	Author affiliation: Dept. of Electron. Eng., Univ. Tec. Federico Santa Maria, Valparaiso, Chile (Lizana, R.; Kouro, S.; Perez, M.; Rodriguez, J.) \|\| Dept. of Electr. & Comput. Eng., Ryerson Univ., Toronto, ON, Canada (Rivera, S.; Bin Wu)
Abstract	This paper presents a new grid connected photovoltaic energy conversion system configuration for large scale power plants. The grid-tied converter is based on a modular multilevel converter using voltage source H-bridge cells. The proposed converter is capable of concentrating a multimegawatt PV plant with distributed string MPPT tracking capability, high power quality and increased efficiency compared to the classic two-level voltage source converters. The main challenge is to handle the inherent power unbalances which may occur, not only between the different cells of one phase of the converter, but also between the three phases. The control strategy to deal with these unbalances is analyzed in this paper. Simulation results for a downsized 7 level MMC composed of 18 H-bridge cells and PV strings are presented to validate the proposed topology and control method.
Starting Page	1941
Ending Page	1946
File Size	3383773
Page Count	6
File Format	PDF
ISBN	9781479903368
DOI	10.1109/ECCE.2013.6646945
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-09-15
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Simulation Power quality Modulation Inverters Topology Voltage control Power generation
Content Type	Text
Resource Type	Article

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