The Traction Power Supply System Design For Fuhuai Railway

At present, In our country’s electrified railway is developing gradually to the high speed and overloading railway, and the technical level of the electrified railway is about to reach the world advanced level, even so, but at present the electrification rate of domestic railway still is not high, the electrification transformation for the existing railway is still one of an important component of the electrified railway development.The article is about the design of the expansion of electrification transformation project about the fuhuai railway. first of all, carried on the investigation and analysis, this paper introduces the electrification transformation of the basic situation of the fuhuai railway, and the present situation of the adjacent lines. Next to t he electrification transformation process needed data are analyzed and calculated, determine electrical parameters of the traction network,the type and capacity of traction transformer, the catenary mode of power supply, and the external power supply scheme, the external power supply scheme of the system, etc, And draw the traction power supply mode and the power supply block diagram. Then the main wiring is designed, the electrical equipment is selected for the traction substation, the sectioning post and the sub-section post. Then configure the microcomputer protection and the integrated automation system which is necessary to the traction power supply system. Gave an research and analysis of the microcomputer protection for transformer and feeder, Analyzes the features of all kinds of the protection action features, Determine the setting method and action logic of all kinds of the protection, draw out the part of the hardware circuit about the transformer current differential protection. And the action lo gic diagram of all kinds of protection, And novelty, such as chicken, huainan west three traction substation main electrical wiring diagram. and the main electrical wiring diagram of Yingshang, Fengtai and Huainanxi, three of the traction substation.Finally completed the traction power supply system preliminary design of the electrification reconstruction project about Fuhuai railway, at present the project has been put into operation, has obtained the periodic success.