A power conversion device comprises an inner coil which can transmit power between an external coil by coupling magnetically with the external coil, an inverter (4a, 4b) whose AC side is connected to the inner coil and power conversion can be performed between the AC side and a DC side and a bidirectional DC/DC converter (5a, 5b) which comprises an intermediate capacitor (8a, 8b), is connected to the DC side of the inverter (4a, 4b) and can perform power conversion bidirectionally between a DC power source (7a, 7b), which is connected to a side which is opposite to the side of the inverter (4a, 4b), and the inverter (4a, 4b), wherein in switching operation from power reception to power transmission where power reception operation is switched to power transmission operation, after control of discharging charges which are accumulated in the intermediate capacitor (8a, 8b) is performed, the power transmission operation is started.


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    Title :

    POWER CONVERSION DEVICE AND CONTACTLESS POWER SUPPLY SYSTEM


    Additional title:

    STROMWANDLUNGSVORRICHTUNG UND KONTAKTLOSES STROMVERSORGUNGSSYSTEM
    DISPOSITIF DE CONVERSION DU COURANT GIE ET SYSTÈME D'ALIMENTATION ÉLECTRIQUE SANS CONTACT


    Contributors:

    Publication date :

    2023-03-08


    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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