To provide a station-building power supply device that can effectively use surplus regenerative power while suppressing fluctuations in the amount of power of an AC system that supplies AC power to station loads. The station-building power supply device includes a capacitor unit 9 that stores therein surplus regenerative power in an electrical transformation zone, a first power conversion unit 11 that performs DC/DC power conversion in both directions between a feeder 6 and the capacitor unit 9, and a second power conversion unit 12 that converts DC power supplied from the capacitor unit 9 to AC power to be supplied to the station loads 4. A first voltage threshold for detecting the occurrence of surplus regenerative power generated in the electrical transformation zone is set for a feeding voltage and a first SOC threshold for detecting whether the capacitor unit 9 can discharge is set for an SOC of the capacitor unit 9. The first power conversion unit 11 is controlled such that power is supplied from the feeder 6 to the capacitor unit 9 to charge the capacitor unit 9 when the feeding voltage exceeds the first voltage threshold, and the second power conversion unit 12 is controlled such that power is supplied from the capacitor unit 9 to the station loads 4 when the SOC of the capacitor unit 9 exceeds the first SOC threshold.


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    Title :

    STATION BUILDING POWER SUPPLY DEVICE


    Additional title:

    STROMVERSORGUNGSVORRICHTUNG FÜR EIN STATIONSGEBÄUDE
    DISPOSITIF D'ALIMENTATION ÉLECTRIQUE DE BÂTIMENT DE GARE


    Contributors:

    Publication date :

    2020-04-01


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

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