In this paper design procedure of wideband damping power filters for electric traction systems is considered. Compensating systems designed with the proposed approach provides for correction frequency characteristics of traction system at the expense of impedance matching between filter and contact feeder in the prescribed frequency range.Keywords: power quality, harmonics, wideband power harmonic filter.Citation: Nikolaev I.F., Stashkov I.A., Sinjagovsky A.F., Dovgun V.P. Synthesis of wideband damping filter for electric traction systems,