NDLI: Flux-based control of 3-phase Active Front End

Content Provider	IEEE Xplore Digital Library
Author	Bartelt, R. Oettmeier, M. Heising, C. Staudt, V.
Copyright Year	2010
Description	Author affiliation: Ruhr-University Bochum, D-44780, Germany (Bartelt, R.; Oettmeier, M.; Heising, C.; Staudt, V.)
Abstract	Active Front End converters (AFE) connect a DC link to a grid, usually with three phases. They allow energy flow in both directions, reduce grid-current harmonics, needed short-circuit power and non-active power in comparison to diode or thyristor-based devices. One more advantage, with is in the center of this paper, is the dynamic reaction to load variations combined with the need for robust control under varying grid parameters. The worst-case variations of grid parameters, in this context, are voltage sags and voltage unsymmetry (e.g. phase faults). This paper presents a control concept employing an inner, virtual-grid-flux based control for fast current control and an outer DC-link voltage control with a conventional PI controller. The layout of the controllers is detailed. Simulations characterise the dynamic performance concerning load variation and grid parameter variation. A comparison of measured and simulated result of a step-wise load change proves the validity of the simulation and the control concept.
Starting Page	69
Ending Page	73
File Size	1930000
Page Count	5
File Format	PDF
ISBN	9781424454365
e-ISBN	9781424454358
DOI	10.1109/ISNCC.2010.5524523
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-06-15
Publisher Place	Poland
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Robust control Current control Voltage fluctuations Costs Power quality Power system harmonics Load management Voltage control Diodes Mesh generation
Content Type	Text
Resource Type	Article

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