Analysis of Power Quality Treatment Solutions for Electrified Railway

Thanks to multi-stage full-wave or bridge rectifier energy conversion method is commonly used in electric locomotive, the resulting harmonic, reactive power and negative sequence and other hazards not only endanger the public power grid and other users, but also endanger electrified railway own safe and reliable operation. In this paper, the current electrified railway power quality control methods and means adopted are analyzed in detail, and their advantages and disadvantages are pointed out. Aiming at power quality control situation of electrified railway, the power quality comprehensive control development tendencies of electrified railway are proposed.