NDLI: Effective control strategy for photovoltaic cascaded H-bridge inverters developed on FPGA platform

Content Provider	IEEE Xplore Digital Library
Author	Di Napoli, F. Coppola, M. Guerriero, P. Iannuzzi, D. Daliento, S.
Copyright Year	2015
Description	Author affiliation: Dept. of Electr. Eng. & Inf. Technol., Univ. Federico II, Naples, Italy (Di Napoli, F.; Coppola, M.; Guerriero, P.; Iannuzzi, D.; Daliento, S.)
Abstract	In this work a new control strategy for grid-tied photovoltaic cascaded H-bridge multilevel inverters is presented. The topology analyzed in the paper is made by series connected power cells, each supplied by an individual PV source, thus providing a distributed conversion scheme. The algorithm ensures stable operation even in power unbalance condition among cells thanks to a sorting algorithm which properly selects the switching state of each H-bridge. The control is implemented on FPGA in order to obtain dedicated digital circuits in parallel operation, which is mandatory when the cells' number increases. The effectiveness of the proposed approach is evidenced by means of experimental tests performed on a single phase 7-level laboratory prototype of H-bridge inverter. The results show good performances in terms of maximum power point tracking efficiency, power factor, and total harmonic distortion.
Starting Page	49
Ending Page	52
File Size	597713
Page Count	4
File Format	PDF
e-ISBN	9781479982295
DOI	10.1109/PRIME.2015.7251091
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-06-29
Publisher Place	UK
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	FPGA implementation Grid-tied multilelevl inverter modulation technique Inverters Topology Field programmable gate arrays Sorting photovoltaic (PV) system
Content Type	Text
Resource Type	Article

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