Abstract

This paper presents fuzzy logic solution to unit commitment and economic dispatch. Unit commitment is aimed to a proper generator commitment schedule for a power system over a period of one day to one week. The main objective of unit commitment is to minimize the total production cost over the study period and to satisfy the constraints imposed on the system such as power generation-load balance, spinning reserve, operating constraints, minimum up time and minimum down time, etc. In this, fuzzy logic approach is described which achieves a logical and feasible economic cost of operation of power system without the need of exact mathematical formulation.