NDLI: Loss minimization of distribution feeders: optimality and algorithms

Content Provider	IEEE Xplore Digital Library
Author	Liu, C.C. Lee, S.J. Vu, K.
Copyright Year	1986
Abstract	Determining open switch positions for the minimum-loss configuration of a radial distribution system is a discrete optimization problem. The authors present a global optimality condition of the problem and two algorithms: one is based on the uniformly distributed load model and the other on the concentrated current (or power) demand model. The derivation of the optimality condition relies on a concept of 'basic' current profiles of feeder sections and a transformation of the optimization problem. In the first algorithm, a closed form of the minimum-loss open point of a feeder pair can be found since the loss function is piecewise-parabolic. The algorithm obtains the optimal solution when the minimum is obtained for every feeder pair. In the second algorithm, a similar procedure is performed by moving open points, one at a time, from an actual switch position to another until no further loss reduction can be achieved. The proposed algorithm can be utilized as an online aid to distribution system operators.<>
Sponsorship	IEEE Power Engineering Society
Starting Page	1281
Ending Page	1289
Page Count	9
File Size	812937
File Format	PDF
ISSN	08858977
Volume Number	4
Issue Number	2
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1989-04-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Minimization methods Switches Load modeling Load flow Load flow analysis Automation Automatic control Power system modeling Control systems Change detection algorithms
Content Type	Text
Resource Type	Article
Subject	Energy Engineering and Power Technology Electrical and Electronic Engineering

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