A fuzzy genetic approach for network reconfiguration to enhance voltage stability in radial distribution systems

This paper presents a fuzzy genetic approach for reconfiguration of radial distribution systems (RDS) so as to maximize the voltage stability of the network for a specific set of loads. The network reconfiguration involves a mechanism for selection of the best set of branches to be opened, one from...

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Main Authors: SAHOO, N, PRASAD, K
Format: Article
Published: PERGAMON-ELSEVIER SCIENCE LTD 2006
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Online Access:http://shdl.mmu.edu.my/3268/
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author SAHOO, N
PRASAD, K
author_facet SAHOO, N
PRASAD, K
author_sort SAHOO, N
building MMU Institutional Repository
collection Online Access
description This paper presents a fuzzy genetic approach for reconfiguration of radial distribution systems (RDS) so as to maximize the voltage stability of the network for a specific set of loads. The network reconfiguration involves a mechanism for selection of the best set of branches to be opened, one from each loop, such that the reconfigured RDS possesses desired performance characteristics. This discrete solution space is better handled by the proposed scheme, which maximizes a suitable optimizing function (computed using two different approaches). In the first approach, this function is chosen as the average of a voltage stability index of all the buses in the RDS, while in the second approach, the complete RDS is reduced to a two bus equivalent system and the optimizing function is the voltage stability index of this reduced two bus system. The fuzzy genetic algorithm uses a suitable coding and decoding scheme for maintaining the radial nature of the network at every stage of genetic evolution, and it also uses a fuzzy rule based mutation controller for efficient search of the solution space. This method, tested on 69 bus and 33 bus RDSs, shows promising results for the both approaches. It is also observed that the network losses are reduced when the voltage stability is enhanced by the network reconfiguration. (c) 2006 Elsevier Ltd. All rights reserved.
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spelling mmu-32682011-10-14T07:25:41Z http://shdl.mmu.edu.my/3268/ A fuzzy genetic approach for network reconfiguration to enhance voltage stability in radial distribution systems SAHOO, N PRASAD, K T Technology (General) QC Physics This paper presents a fuzzy genetic approach for reconfiguration of radial distribution systems (RDS) so as to maximize the voltage stability of the network for a specific set of loads. The network reconfiguration involves a mechanism for selection of the best set of branches to be opened, one from each loop, such that the reconfigured RDS possesses desired performance characteristics. This discrete solution space is better handled by the proposed scheme, which maximizes a suitable optimizing function (computed using two different approaches). In the first approach, this function is chosen as the average of a voltage stability index of all the buses in the RDS, while in the second approach, the complete RDS is reduced to a two bus equivalent system and the optimizing function is the voltage stability index of this reduced two bus system. The fuzzy genetic algorithm uses a suitable coding and decoding scheme for maintaining the radial nature of the network at every stage of genetic evolution, and it also uses a fuzzy rule based mutation controller for efficient search of the solution space. This method, tested on 69 bus and 33 bus RDSs, shows promising results for the both approaches. It is also observed that the network losses are reduced when the voltage stability is enhanced by the network reconfiguration. (c) 2006 Elsevier Ltd. All rights reserved. PERGAMON-ELSEVIER SCIENCE LTD 2006-11 Article NonPeerReviewed SAHOO, N and PRASAD, K (2006) A fuzzy genetic approach for network reconfiguration to enhance voltage stability in radial distribution systems. Energy Conversion and Management, 47 (18-19). pp. 3288-3306. ISSN 01968904 http://dx.doi.org/10.1016/j.enconman.2006.01.004 doi:10.1016/j.enconman.2006.01.004 doi:10.1016/j.enconman.2006.01.004
spellingShingle T Technology (General)
QC Physics
SAHOO, N
PRASAD, K
A fuzzy genetic approach for network reconfiguration to enhance voltage stability in radial distribution systems
title A fuzzy genetic approach for network reconfiguration to enhance voltage stability in radial distribution systems
title_full A fuzzy genetic approach for network reconfiguration to enhance voltage stability in radial distribution systems
title_fullStr A fuzzy genetic approach for network reconfiguration to enhance voltage stability in radial distribution systems
title_full_unstemmed A fuzzy genetic approach for network reconfiguration to enhance voltage stability in radial distribution systems
title_short A fuzzy genetic approach for network reconfiguration to enhance voltage stability in radial distribution systems
title_sort fuzzy genetic approach for network reconfiguration to enhance voltage stability in radial distribution systems
topic T Technology (General)
QC Physics
url http://shdl.mmu.edu.my/3268/
http://shdl.mmu.edu.my/3268/
http://shdl.mmu.edu.my/3268/