Determination of the R-L-C parameters of a passive harmonic filter using genetic algorithm

This paper presents some results obtained with the development of a project to identify an experimental harmonic current model to represent the low voltage customers of the metropolitan electrical distribution system of Belem city, located in north of Brazil, and describes the application of genetic algorithm to calculate the R-L-C parameters of passive harmonic filters that may be installed in the customers' houses. The main goal in projecting the harmonic filters is to minimize the harmonic impedance in some specific frequencies and, simultaneously, to maximize the fundamental frequency impedance in that branches of the filter in order to minimize losses. The proposed method and the results obtained are presented in details.