Reconfiguration of distribution system using fuzzy multi-objective approach

The paper presents an algorithm for network reconfiguration based on fuzzy multi-objective approach. Multiple objectives are considered for load balancing among the feeders, minimum deviation of the nodes voltage, minimize the power loss and branch current constraint violation, while subject to a radial network structure in which all loads must be energized. These objectives are modeled with fuzzy sets to evaluate their imprecise nature and one can provide his or her anticipated value of each objective. These four objectives are first fuzzified and then a fuzzy satisfaction objective function is formed and maximized for each tie-switch operation. Heuristic rules are also incorporated in the algorithm for minimizing the number of tie-switch operation. The effectiveness of the proposed method is demonstrated through an example.