An algorithm of the harmonics on traction power system of theelectrified railway

摘要

The authors explore harmonic calculations for Chinese electrifiednrailway systems. One of the branches of the electrified railway powernsystem in operation was emulated and calculated with special purposensoftware for analyzing harmonic currents. The multiple harmonic sourcesnand the asymmetry of the system make the harmonic analysis complicated.nThe three-phase power system is converted into a single-phase networknwith mutual coupling. A simple algorithm for calculating harmonics withnnode voltage equations is provided, which simplifies the calculation ofnharmonics of a complicated system with multiple harmonic sources andnasymmetrical networks