To reduce an inflow of a surge current into an active filter due to variations in overhead line current without stopping an operation of the active filter for more than a time element in which a signal equipment does not cause a malfunction.SOLUTION: A drive system 1 for a rolling stock includes: a semiconductor current limiter 2 which is disposed on a main circuit and includes a semiconductor switch element 101 connected in series to a line breaker 7 and an invertor and resistors 111 and 112 connected in parallel to the semiconductor switch element 101; and an active filter 51 to carry out a noise reduction operation for reducing a return current noise caused by the invertor. If a direct current from an overhead line is changed by a time gradient exceeding a predetermined threshold value, the drive system 1 for the rolling stock starts the noise reduction operation of the active filter 51 and then brings the semiconductor switch element 101 into a steady on state from a state where the semiconductor switch element 101 is turned off and the noise reduction operation of the active filter 51 is stopped.SELECTED DRAWING: Figure 1
【課題】アクティブフィルタの動作を信号機器が誤動作を起こさない時素以上に停止することなく、架線電流変動によるアクティブフィルタへのサージ電流流入を抑制する。【解決手段】鉄道車両用の駆動システム1は、断流器7とインバータとに直列に接続された半導体スイッチ素子101と半導体スイッチ素子101に並列に接続された抵抗器111,112とを有し主回路に設けられた半導体減流器2と、インバータが発生する帰線電流ノイズを抑制するノイズ低減動作を行うアクティブフィルタ51と、を有する。鉄道車両用の駆動システム1は、架線からの直流電流が所定閾値を超える時間傾きで変化した場合に、半導体スイッチ素子101がオフ状態、かつ、アクティブフィルタ51のノイズ低減動作の停止状態から、アクティブフィルタ51のノイズ低減動作を開始後、半導体スイッチ素子101を定常的なオン状態にする。【選択図】図1
DRIVE SYSTEM FOR ROLLING STOCK AND DRIVING METHOD FOR ROLLING STOCK
鉄道車両用駆動システムおよび鉄道車両の駆動方法
2021-05-06
Patent
Electronic Resource
Japanese
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / 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 |
European Patent Office | 2023
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