Title: Restoration of Low-Voltage Distribution Systems with Inverter-Interfaced DG Units
Authors: Dietmannsberger, Markus 
Wang, Xiongfei 
Schulz, Detlef  
Blaabjerg, Frede 
Affiliation: Elektrische Energiesysteme
Aalborg Universitet
Elektrische Energiesysteme
Aalborg Universitet
Language: en
Subject (DDC): Ingenieurwissenschaften
Subject: Distributed Power Generation
Reactive Power
Restoration
Issue Date: 2018
Publisher: Institute of Electrical and Electronics Engineers Inc.
Document Type: Article
Journal / Series / Working Paper (HSU): IEEE Transactions on Industrial Electronics 
Volume: 54
Issue: 5
Page Start: 5377
Page End: 5386
Document Version: publishedVersion
Abstract: 
The increasing share of distributed generation (DG) offers new chances in grid restoration of low-voltage distribution grids. Instead of relying on the transmission or high- and medium-voltage levels, establishing islanding operation in low-voltage grids might be a good option after a wide-area voltage collapse. This paper proposes a restoration strategy from zero-voltage conditions for inverter-interfaced DG under islanded conditions. In the approach, a flexible and scalable master DG inverter concept is introduced for DGs, where no communication is needed and an outage of the master can be balanced by other DG inverters. The control strategy ensures the tracking of nominal values of the system voltage and frequency without zero steady-state error. The influences of noncontrollable DG are also taken into account in the strategy with an effective countermeasure developed. Experimental results verify the effectiveness of the proposed approach. © 1972-2012 IEEE.
Organization Units (connected with the publication): Elektrische Energiesysteme 
ISBN: 0093-9994
DOI: 10.3390/app9091748
Rights: 4.0 deutsch
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