Problematika rezonancí v napájecí soustavě elektrické vozby

Abstract

The goal of thesis „ The problems of resonances in feed array of electric bindings “ is applied to problems of emergence of higher harmonic resonance and emergence of resonance in alternate traction circuit 25kV 50Hz. I hereby describe the procedure of calculation of resonance frequency and coefficient of increment depending upon distance of vehicle from feeding station, influence of filter-compensational mechanism with and without it. I also outline disruptive influencies of chopper converters on supply network and present what influencies this disruption may cause on electric mechanism. At the same time, I work on the ways of higher harmonic restrictions in electrical network. The most interesting part of my thesis is practical measurement carried out in traction feeding station in ČD Blansko in order to verify emergence of resonance in traction circuit and the measurement of higher harmonic resonances in traction and feeding line.