Abstract

This paper develops an optimal placement method in order to size and site capacitor banks in IEEE 33 bus test system. The proposed method in order of optimization in this article is Evolutionary programming and the objective function is composed of two parts. Most part of proposed objective function considers improvement of voltage profile and other part is active power losses of the system in nominal load of mention system. In order to use Evolutionary programming algorithm, at first, placement problem is written as an optimization problem which includes the objective function and constraints, and then to achieve the most favorite results, Evolutionary programming (EP) method is applied to solve the problem. High performance of the proposed algorithm in mention system is verified by simulations in MATLAB software and in order to prove feasibility of proposed method this optimization in three cases – one capacitor bank, two capacitor banks, and three capacitor banks- will be accomplish.

Key words: Capacitor Placement, evolutionary programming, multi-objective function, optimization.