Multiobjective Evolution Programming Method for Feeder Reconfiguration

Abstract

This paper proposes a multiobjective evolution programming method for distribution feeder reconfiguration in a practical system. The multiple objectives are minimizing power losses, ensuring voltage quality, service reliability assurance, and minimizing switching operations. Generally, the attributes of the above four objectives are not the same and operators' judgment must be involved in trading off between these objectives. Accordingly, this investigation presents an interactive fuzzy algorithm for obtaining a compromise solution. Furthermore, the solution algorithm is implemented in C++ with man-machine interactive procedures and tested on a Tai-Power 102-bus system with very promising results.Index Terms-Evolution programming, feeder reconfiguration, interactive fuzzy satisfying method, multiobjective optimization.

Reconfiguration of Electric Distribution Network Using Fuzzy Multi-Objective Approach

“…Now if tie S35 is closed, a loop will be formed and the total number of branches including tie branch (12)(13)(14)(15)(16)(17)(18)(19)(20)(21)(22) in this loop will be 15. These branches are 12-22, 22-21, 21-20, 20-19, 19-2, 2-3, 3-4, 4-5, 5-6, 6-7, 7-8, 8-9, 9-10, 10-11 and 11-12.…”

“…They have that suggestedthat substantial savings can be provided by heuristic approaches so these are suitable for real time implementation. Algorithms employing artificial intelligence for network reconfiguration of distribution network are proposed byHsiao, et al [13], Jeon, et al [14], Shin, et al [15], Hsiao [16], Lin, et al [17], Das [18] and Hong, et al [19]. The disadvantage with most of the above mentioned algorithms is that they focus only power loss reduction as the objective of network reconfiguration.…”

Multicriteria Reconfiguration of Distribution Network with Distributed Generation

“…A widely used approach is the consideration for power supply reliability through the damages due to power undersupply which allows the multicriteria problem to be reduced to a one-criterion one [3,4] and so forth. To this end it is necessary to have reliable estimates of specific damages due to power supply interruption for different consumers.…”

“…is given in [2]. In many cases the problem is considered as a multicriteria one with reliability criterion formulated through damages to consumers [3,4] and so forth.…”

Robust Reconfiguration of A Distribution System

“…Population-based optimization algorithms are used in [7] and [12] to find the optimal configuration with minimum loss. Reference [13] employs a simulated annealing metaheuristic technique for loss minimization-based DSR.…”