To provide an active filter device capable of downsizing an LC filter of a vehicle electric circuit for a railway vehicle, and capable of suppressing a noise current superimposed on a return current.SOLUTION: An active filter device 1, provided at a DC input side of an inverter 50 for driving a motor of a railway vehicle 500, includes: a transformer 7 whose primary winding is connected to a DC side line of the inverter for driving a motor; an active filter inverter circuit 10 constructed with a series circuit of semiconductor switching elements; a DC power supply 3 connected to a DC unit; a high frequency filter circuit 30 connected between the active filter inverter circuit and a secondary winding of the transformer; a first current sensor 20 for detecting a return current flowing the primary winding of the transformer; a second current sensor 21 for detecting an output current flowing the secondary winding of the transformer; and a controller 100 for controlling a switching signal of the active filter inverter circuit.SELECTED DRAWING: Figure 2

    【課題】鉄道車両の車両電気回路のLCフィルタを小型化し、帰線電流に重畳されるノイズ電流を抑圧するアクティブフィルタ装置を提供する。【解決手段】鉄道車両500のモータ駆動用インバータ50の直流入力側に設けるアクティブフィルタ装置1であって、一次巻線がモータ駆動用インバータの直流側線路に接続される変圧器7と、半導体スイッチング素子の直列回路で構成されるアクティブフィルタインバータ回路10と、直流部に接続した直流電源3と、変圧器の二次巻線との間に接続される高周波フィルタ回路30と、変圧器の一次巻線に流れる帰線電流を検出する第1の電流センサ20と、前記変圧器の二次巻線に流れる出力電流を検出する第2の電流センサ21と、アクティブフィルタインバータ回路のスイッチング信号を制御する制御装置100と、を備えている。【選択図】図2


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    Title :

    ACTIVE FILTER DEVICE FOR RAILWAY VEHICLE AND RAILWAY VEHICLE HAVING THE SAME


    Additional title:

    鉄道車両用アクティブフィルタ装置およびそれを備える鉄道車両


    Contributors:

    Publication date :

    2021-02-15


    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 / H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



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