著者

小林 輝雄 藤橋 芳弘 円谷 哲男 佐藤 純一 大浦 泰 藤井 保和

出版者

The Institute of Electrical Engineers of Japan

雑誌

電気学会論文誌D(産業応用部門誌) (ISSN:09136339)

巻号頁・発行日

vol.117, no.5, pp.609-615, 1997-04-20 (Released:2008-12-19)

参考文献数

15

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In Japan speed tests in 300km/h region have been carried out since Oyama Test Line recorded a 319km/h run in 1979. Meanwhile TGV recorded a 515.3km/h run by an electric locomotive installed with a pantograph in 1990 and ICE did 406.9km/h using similar train in 1988. High speed current collection tests over 400km/h using electric railcars have been desired in Japan. Problems of high speed tests are: train speed approaching wave propagation velocity, multi-pantographs resonance, and too large uplift of contact wires caused by lift. It is necessary to keep wave propagation velocity of contact wire higher than train speed. CS contact wire and TA contact wire were compared in high speed tests because it was impossible to get a good current collecting performance by using hard-drawn copper contact wires. In December, 1993 using these contact wires we carried out high speed running tests of 400km/h region on Jyoetsu Shinkansen with the test train STAR 21 which JR EAST built for high speed tests. This paper gives the current collecting performance of these contact wires predicted by simulation and running tests at 425km/h.

著者

藤井 保和 久須美 俊一 福谷 隆宏 岩井中 篤史

出版者

一般社団法人 電気学会

雑誌

電気学会論文誌D(産業応用部門誌) (ISSN:09136339)

巻号頁・発行日

vol.124, no.10, pp.1073-1079, 2004 (Released:2005-01-01)

参考文献数

22

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This paper proposes an arc contact loss rate estimating method for Shinkansen trains with pantographs connected to bus cables. For the speedup of Shinkansen, it is necessary to judge whether the contact loss rate exceeds its standard value. As the standard of contact loss rate is provided from the viewpoint of contact strip wear caused by arcs, it is important to measure the amount of arc. The optical type contact loss measuring method which detects the contact loss by arcs is suitable for this purpose. It is difficult, however, to measure contact loss by this method in the daytime, because of the influence of outdoor light. To solve the above problem, we have developed an arc contact loss rate estimating method by using a contact loss simulation program on the basis of the complete contact loss rate measured by the current type contact loss measuring method which is effective in the daytime. Furthermore, we measured the contact loss rate simultaneously by the current and optical type contact loss measuring methods in the running tests of Shinkansen trains, and confirmed the validity of this estimation through a comparison of measured and simulated results.