New concept for harmonic filtration in distribution networks of industrial firms

This paper presents a new method for designing the parameters of harmonic filters used with distorting loads in industrial firms. It proposes using hybrid filters which composed of groups of single tuned harmonic filters and a shunt capacitor. The design takes into consideration as minimum as possible values of capacitors capacitance, and the avoidance of parallel resonance and considers the filter elements deviations from their adjusted values at the designed filters harmonic orders [1–9]. Economic and technical aspects are considered.