PROBLEM TO BE SOLVED: To provide a non-contact power transmission device that detects abnormality in a secondary coil, a rectification unit, or the like without depending on radio communication, and can quickly move to safe operation.SOLUTION: A non-contact power transmission device comprises: a current transformer 23 for detecting the magnitude of input from a power control device 7; a ground side coil 13 for generating a magnetic field by supply current on the basis of the input from the power control device 7; and a control unit that controls the supply current to reduce the magnetic field when the value of change in the magnitude of the input is a first prescribed value or more and less than a second prescribed value in a prescribed time on the basis of a detection result by the current transformer 23, and on the other hand controls the supply current to stop the magnetic field when the value of change in the magnitude of the input is the second prescribed value or more in the prescribed time.SELECTED DRAWING: Figure 1

    【課題】無線通信によることなく、2次コイルや整流部等の異常を検知し、速やかに安全な動作に移行することのできる非接触電力伝送装置を提供する。【解決手段】電力制御装置7からの入力の大きさを検知するカレントトランス23と、電力制御装置7からの入力に基づく供給電流により磁界を発生する地上側コイル13と、カレントトランス23の検知結果に基づき、所定時間における入力の大きさの変化値が第1所定値以上であり第2所定値より小さいとき、供給電流を制御することで磁界を小さくさせ、一方、所定時間における入力の大きさの変化値が第2所定値以上のとき、供給電流を制御することで磁界を停止させる制御部と、を備える。【選択図】図1


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    Title :

    NON-CONTACT POWER TRANSMISSION DEVICE AND NON-CONTACT POWER TRANSMISSION METHOD


    Additional title:

    非接触電力伝送装置及び非接触電力伝送方法


    Contributors:

    Publication date :

    2016-12-22


    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 / H01M Verfahren oder Mittel, z.B. Batterien, für die direkte Umwandlung von chemischer in elektrische Energie , PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY



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