PROBLEM TO BE SOLVED: To enhance power transmission efficiency to a power reception device in such a range that a recovery current is not generated in an inverter.SOLUTION: A power ECU 250 executes power transmission power control, which controls transmission power to target power by adjusting the duty of the output voltage of an inverter 220, and turn-on current control, which controls a turn-on current to a target value by adjusting the drive frequency of the inverter 220. The turn-on current target value is set in such a range that a recovery current is not generated in a reflux diode of the inverter 220. The power ECU 250, while controlling the transmission power at the target power by the power transmission power control, changes the turn-on current target value in such a manner that a current magnitude flowing through a power transmission unit 240 decreases in such a range that the recovery current is not generated.SELECTED DRAWING: Figure 1

    【課題】インバータにおいてリカバリー電流が生じない範囲で、受電装置への電力伝送効率を高める。【解決手段】電源ECU250は、インバータ220の出力電圧のデューティを調整することによって送電電力を目標電力に制御する送電電力制御と、インバータ220の駆動周波数を調整することによってターンオン電流を目標値に制御するターンオン電流制御とを実行する。ターンオン電流の目標値は、インバータ220の還流ダイオードにリカバリー電流が生じない範囲に設定される。電源ECU250は、送電電力制御により送電電力を目標電力に制御しつつ、リカバリー電流が生じない範囲において、送電部240に流れる電流の大きさが低下するようにターンオン電流の目標値を変更する。【選択図】図1


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    Title :

    NON-CONTACT POWER TRANSMISSION DEVICE AND POWER TRANSMISSION SYSTEM


    Additional title:

    非接触送電装置及び電力伝送システム


    Contributors:

    Publication date :

    2017-01-05


    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 / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / 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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