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Multiple Distributed Generators for Distribution Feeder Voltage Support


Muttaqi, KM and Ledwich, G, Multiple Distributed Generators for Distribution Feeder Voltage Support, IEEE Transactions on Energy Conversion , 20, (3) pp. 676-684. ISSN 0885-8969 (2005) [Refereed Article]

DOI: doi:10.1109/TEC.2004.832090


Inclusion of voltage support distributed generation (VSDG) can reinforce the feeder voltage of distribution networks, especially in rural/remote areas where voltage dip and frequent blackouts are significant concerns for power utilities. However, installation of multiple distributed generators within a distribution grid system may introduce technical problems in network operation and control, including control interaction and/or voltage instability. This paper addresses the network issues that may occur during multiple VSDG inclusion in the network and presents analytical models and solutions to develop design criteria of VSDG installation in the networks. Voltage sensitivity of lines is investigated and the effect of DG real (P) and reactive (Q) power injections with Q priority is developed for optimal use of VSDG in correcting the network voltage. Interaction among VSDG controllers has been explored and a generalized model is presented to analyze this interaction between any number of VSDGs in the network. The model is tested on a sample VSDG system and test results are presented. The issue of which VSDG must be started recognizing the costs of starting is addressed using an inverse definite minimum time (IDMT) model. A prioritization and coordination scheme for start discrimination of multiple VSDGs is proposed which avoids hunting between multiple generators. © 2005 IEEE.

Item Details

Item Type:Refereed Article
Research Division:Engineering
Research Group:Control engineering, mechatronics and robotics
Research Field:Field robotics
Objective Division:Energy
Objective Group:Energy exploration
Objective Field:Energy exploration not elsewhere classified
UTAS Author:Muttaqi, KM (Dr Kashem Muttaqi)
ID Code:34738
Year Published:2005
Web of Science® Times Cited:85
Deposited By:Engineering
Deposited On:2005-08-01
Last Modified:2006-05-10

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