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Title:
DRIVE DEVICE FOR RAILWAY VEHICLE
Document Type and Number:
WIPO Patent Application WO/2011/152383
Kind Code:
A1
Abstract:
Generally, in the control device of a railway vehicle, an inverter device (4) is controlled on the basis of the direct current link voltage (Vfc) at both ends of a filter capacitor (3). In the disclosed circuit configuration, a direct current voltage that is impressed on the inverter device (4) during regeneration is made to be the sum of the voltage (Vb) of a power accumulation device (6) and the voltage (Vs) of overhead wires, so by only detecting the direct current link voltage (Vfc), the voltage (Vb) of the power accumulation device (6) and voltage (Vs) of the overhead wires cannot be separated and the state of light load regeneration cannot be determined. In a circuit configuration where a capacitor can connect to the inverter device (4) in series, a voltage sensor that can detect overhead wire voltage (Vs) is positioned between a current collector (1) and a ground connection and the power accumulation device (6) is controlled on the basis of the detection results of the voltage sensor.

Inventors:
ARAKI, Daijiro (HITACHI LTD., 1070, Ichige, Hitachinaka-sh, Ibaraki 06, 〒3128506, JP)
荒木 大二郎 (〒06 茨城県ひたちなか市市毛1070番地 株式会社 日立製作所 交通システム事業部内 Ibaraki, 〒3128506, JP)
SHIMADA, Motomi (HITACHI LTD., 1070, Ichige, Hitachinaka-sh, Ibaraki 06, 〒3128506, JP)
嶋田 基巳 (〒06 茨城県ひたちなか市市毛1070番地 株式会社 日立製作所 交通システム事業部内 Ibaraki, 〒3128506, JP)
TACHIHARA, Shuichi (HITACHI LTD., 1070, Ichige, Hitachinaka-sh, Ibaraki 06, 〒3128506, JP)
Application Number:
JP2011/062454
Publication Date:
December 08, 2011
Filing Date:
May 31, 2011
Export Citation:
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Assignee:
HITACHI, LTD. (6-6 Marunouchi 1-chome, Chiyoda-ku Tokyo, 80, 〒1008280, JP)
株式会社日立製作所 (〒80 東京都千代田区丸の内一丁目6番6号 Tokyo, 〒1008280, JP)
ARAKI, Daijiro (HITACHI LTD., 1070, Ichige, Hitachinaka-sh, Ibaraki 06, 〒3128506, JP)
荒木 大二郎 (〒06 茨城県ひたちなか市市毛1070番地 株式会社 日立製作所 交通システム事業部内 Ibaraki, 〒3128506, JP)
SHIMADA, Motomi (HITACHI LTD., 1070, Ichige, Hitachinaka-sh, Ibaraki 06, 〒3128506, JP)
嶋田 基巳 (〒06 茨城県ひたちなか市市毛1070番地 株式会社 日立製作所 交通システム事業部内 Ibaraki, 〒3128506, JP)
International Classes:
B60L9/18; B60L7/14; B60L11/18
Attorney, Agent or Firm:
Patent Corporate Body Dai-ichi Kokusai Tokkyo Jimusho (daVinci Tamachi, 10-5 Shiba 4-chome, Minato-k, Tokyo 14, 〒1080014, JP)
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Claims: