Modelling and Simulation for Voltage Stability Enhancement in Radial Distribution Systems by Reconfiguration

K. Prasad and N.C. Sahoo (Malaysia)


Power distribution engineering, Network reconfiguration, Computeraided simulation


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 function is chosen as the average of a voltage stability index of all the buses in the RDS. 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 system shows that the network losses are reduced when voltage stability is enhanced by network reconfiguration.

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