High-speed Railway Catenary Technology Research And Application

Electric traction is widely used in speed-railway. By this means, electric bow gets energy from contact network. As the main part of power-supply system, the performance of contact network directly determines the quality of absorption current and finally affects the speed and safety of bullet train.Speed-railway is the tidal current of railway development in the world now. As the development of economy and technology, keen competition of transportation and communication, Speed-railway is developing greatly in many countries for its peculiar merits.The study and building of Speed-railway is later in our contry. Guangzhou-Shenzhen line which was built with 220km/h test speed in July, 1998 has great gap compared with developed contries. Wherefore, how to study foreign contries' advance technology and research the speed-railway contact network are significant exceptionally to fill the need of our contry and adapt to the competition of speed-railway in the furture.As to speed-railway contact network, the paper synthesizes and compares various modes in different developed countries. With reference to advanced technology from home to abroad, as well as combined with practical experience gotten from civil construction, the paper researches into it on technology and application.According to the static and dynamic evaluation standard, the paper researches in virtue of simulation several factors that affect the quality of absorption current, furthermore, appropriate measures are brought forward to improve the quality. The paper bases on the situation of our country, uses different technology and experience for reference and combines the result of computer simulation, thus brings a mode of speed-railway contact network that fits in with our country. To improve our construction, the paper studies mainly from constructing facility, constructing organization and constructing technology. Finally, two finished and running lines, Guangzhou-Shenzhen and Qinhuangdao-Shenyang, are provided as samples to illustrate current application and research on technology of speed-railway contact network in our country.The paper provides useful reference for constructing civil speed railway contact network in high orientation, good start, high standard and great efficiency.