An electric power supply system includes: a positive-electrode-side contactor inserted into a positive power line; a negative-electrode-side contactor inserted into a negative power line; a pre-charge circuit; an electric potential difference detector that detects an electric potential difference between both ends of the positive-electrode-side contactor; and a contactor controller that receives an output of the electric potential difference detection circuit, and controls the positive-electrode-side contactor and the negative-electrode-side contactor, in which the contactor controller temporarily turns on the positive-electrode-side contactor in a state where the negative-electrode-ide contactor is turned off when the electric power supply system is started, retains an output of the electric potential difference detection circuit during this on period as a correction value, turns off the positive-electrode-side contactor and turns on the negative-electrode-side-contactor after the retention, and turns on the positive-electrode-side contactor when an output of the electric potential difference detection circuit has reached the correction value.


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    Title :

    ELECTRIC POWER SUPPLY SYSTEM AND CONTROL METHOD FOR ELECTRIC POWER SUPPLY SYSTEM


    Contributors:

    Publication date :

    2024-10-03


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    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 / H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung



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