NDLI: An improved Real-Time Digital Feedback Control for grid-tie multilevel inverter

Content Provider	IEEE Xplore Digital Library
Author	Trabelsi, M. Ben-Brahim, L. Ghazi, K.A.
Copyright Year	2013
Description	Author affiliation: Electr. Dept., Qatar Univ., Doha, Qatar (Trabelsi, M.; Ben-Brahim, L.; Ghazi, K.A.)
Abstract	This paper proposes a weighted Real-Time Digital Feedback Control for a grid connected Distributed Generation (DG) system (gas turbines, fuel cells, photovoltaic, wind...). The DG source is connected to the grid through a Power Conditioning Unit (PCU) consisting of a multilevel Flying Capacitors Inverter (FCI), an inductor, and a step-up transformer. The proposed controller is predictive type offering the possibility of furthering the capacitor voltages tracking, load current tracking, or a trade-off between all state variables tracking (capacitor voltages should be controlled in order to ensure a proper operation of the FCI). The Weighted Predictive Controller (WPC) transfers the power to the grid, even under grid voltage variation (sag or swell) due to its Voltage Ride Through (VRT) capability by controlling the current with unity power factor. Theoretical analysis, simulation and experimental results are described in this paper.
Sponsorship	IEEE Ind. Electron. Soc.
Starting Page	5776
Ending Page	5781
File Size	1419293
Page Count	6
File Format	PDF
ISBN	9781479902248
ISSN	1553572X
DOI	10.1109/IECON.2013.6700081
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-11-10
Publisher Place	Austria
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Capacitors Voltage control Inverters Voltage fluctuations Switches Prototypes Voltage measurement Unity power factor Weighted Predictive Controller Voltage Ride Through Capability Grid connection
Content Type	Text
Resource Type	Article

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