Analysis On Power Supply Mode Of Electric Traction System And The Effects Of Traction Load On The Quality Of Electric Energy

The tractive power supply system of electrified railway is a single-phase complicated netbios., with the rapid socioeconomic development, it makes higher demand for electrified railroading because of pursuing high-speed, high-density, and heavy haulage target.lt also put forward the subject for us on how to choose the power supply mode and how to reduce the effects of single-phase nonlinear electric traction load in high-speed electrified railway.For this reason, In this paper against the background of the first being constructed high-speed special electrified railway in zhejiang line project for passenger of the YongTaiWen railroad currently. According to different specialty the power supply mode of DN and AT of electric traction system are analysed, the effects of the negative-sequence and harmonic generated by the electric traction load on the Quality of Electric Energy are analysed,methods of improvement are put forward.This text through the applied circumstance of related power supply method of the electrification railroad at home and abroad first, studying DN and AT two kinds of different power supply methods of of basic principle and characteristics, and carry on an economic technique comparison to both. Simultaneously according to the YongTaiWen railroad of being constructed high-speed special electrified railway line project for passenger.The article put forward the choice as the power supply method from method of DN or AT,Secondly the article studied the characteristics of burden of electric traction load, the principle of the negative-sequence and harmonic created by the electric locomotive are analysed, based on the negative-sequence and harmonic which is creative of YongTaiWen railroad of being constructed electrified railway, correspond methods of reducing to influence to the electric power system are put forward.