PROBLEM TO BE SOLVED: To reduce the size and weight of a power converter with travel wind cooling system, using the travel wind of rolling stock for cooling, while improving the cooling performance.SOLUTION: A power converter of rolling stock is constituted of: a main transformer for connection with a single-phase AC stringing; first power conversion element groups 6a, 6b for converting a single-phase AC power, supplied from the main transformer, into a DC power; second power conversion element groups 7a, 7b for converting the DC power into an AC power and driving an AC motor; a first power unit 3a where some of the first power conversion element groups and some of the second power conversion element groups are provided on a first coolant having a heat release part 5a; and a second power unit 3b where some of the reminder of the first power conversion element groups and some of the reminder of the second power conversion element groups are provided on a second coolant having a heat release part 5b. The first power unit is placed close to one side of the rolling stock, and the second power unit is placed close to the other side thereof.SELECTED DRAWING: Figure 1A

    【課題】鉄道車両の走行風を利用して冷却を行う走行風冷却方式の電力変換装置において、冷却性能を向上しつつ、装置の小型化及び軽量化を提供する。【解決手段】単相交流架線に接続する主変圧器と、前記主変圧器から供給される単相交流電力を直流電力に変換する第1の電力変換素子群6a、6bと、直流電力を交流電力に変換して交流電動機を駆動する第2の電力変換素子群7a、7bと、第1の電力変換素子群の一部と第2の電力変換素子群の一部が放熱部5aを有する第1の冷却体上に設けられた第1のパワーユニット3aと、第1の電力変換素子群の残りの一部と第2の電力変換素子群の残りの一部が放熱部5bを有する第2の冷却体上に設けられた第2のパワーユニット3bとから構成される。第1のパワーユニットは鉄道車両の一方の側面側に寄せて配置され、第2のパワーユニットは鉄道車両の他方の側面側に寄せて配置される。【選択図】図1A


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    Title :

    POWER CONVERTER OF ROLLING STOCK


    Additional title:

    鉄道車両の電力変換装置


    Contributors:

    Publication date :

    2017-11-02


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    H02M APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS , Anlagen zur Umformung von Wechselstrom in Wechselstrom, von Wechselstrom in Gleichstrom oder umgekehrt, oder von Gleichstrom in Gleichstrom und zur Verwendung in Netzen oder ähnlichen Stromversorgungssystemen / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / B61C Lokomotiven , LOCOMOTIVES



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