Capacitor Placement and Replacement for Reactive Power Control in Radial Distribution System

The elegant approach to the reactive power control problem in a radial distribution system using fuzzy logic is presented. Voltage and power loss reduction of nodes are modeled by fuzzy membership functions. Fuzzy rules are used to determine the location for the capacitor placement in a radial distribution system. Shunt capacitor is placed on the node with the highest suitability. The optimum rating of the capacitor banks on the feeders with the distributed loads using numerical producer is developed. The most economical mode of operation for the distribution system is ensured all the time, without violating any of the system voltage constraints. Furthermore, the economical benefits of relocating the capacitor bank of the feeder as the load increases is studied on a feeder that has capacitors connected to it. The method is simple and can be used as on line controller