PROBLEM TO BE SOLVED: To provide a railroad power compensator capable of effectively using regeneration electric power while reducing operation loss when reverse phase compensation and reactive power compensation are performed.SOLUTION: A current command value calculation circuit 36 obtains an effective current command value for compensating excess when a reverse phase value, which is half of a difference between the effective component of an M seat and that of a T seat, exceeds a certain value if both are power running, and obtains an effective current command value for compensating a current value whose absolute value is smaller between half of the difference and a regeneration current if at least one of the two effective components is in a regeneration state. Current control circuits 9 and 10 output a switching signal based on the current command value. MT seat converters 46, 47 and a MT seat inverse converter 48 accommodate effective power between the M seat and T seat in response to the switching signal and output ineffective electric power to the M seat and T seat independently.SELECTED DRAWING: Figure 3

    【課題】逆相補償や無効電力補償を行う場合に、運転損失を低減しつつ回生電力を有効利用することのできる鉄道用電力補償装置を提供する。【解決手段】電流指令値演算回路36は、M座およびT座の有効成分が両方とも力行であれば、両方の差分の1/2である逆相値が一定値を超えた時の超過分を補償するような有効電流指令値を求め、2つの有効成分のうち少なくとも一方が回生状態であれば、前記差分の1/2と回生電流のうちの絶対値の小さい方の電流値を補償するような有効電流指令値を求める。電流制御部回路9、10は、電流指令値に基づいてスイッチング信号を出力し、MT座変換器46、47、MT座逆変換器48は、スイッチング信号に従ってM座とT座間で有効電力を融通すると共に、M座とT座それぞれに独立して無効電力を出力する。【選択図】図3


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    Title :

    RAILROAD POWER COMPENSATOR


    Additional title:

    鉄道用電力補償装置


    Contributors:

    Publication date :

    2017-03-02


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung / B60M Speiseleitungen oder Vorrichtungen am Gleis für elektrisch angetriebene Fahrzeuge , POWER SUPPLY LINES, OR DEVICES ALONG RAILS, FOR ELECTRICALLY-PROPELLED VEHICLES / 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



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