To provide a non-contact power transmission apparatus capable of determining whether there is a ground fault of a power transmission coil with high accuracy regardless of ground fault location.SOLUTION: A power transmission apparatus 100 comprises: an LC resonance unit R1; a signal generation unit 180; and a power transmission ECU 310. The LC resonance unit R1 is structured such that a capacitor 102a is serially connected to one end of a power transmission coil 101 and a capacitor 102b is serially connected to the other end of the power transmission coil 101. By applying a prescribed voltage to a detection portion P via an impedance element 181 by a voltage application circuit 182 electrically connected to a ground part G of a system power supply 300, a voltage signal indicating the magnitude of a ground fault resistance of the detection portion P between the power transmission coil 101 and the capacitor 102b is generated. The power transmission ECU 310 determines whether there is a ground fault of the power transmission coil 101 or not using the generated voltage signal.SELECTED DRAWING: Figure 1

    【課題】地絡箇所によらず高い精度で送電コイルの地絡の有無を判定できる非接触送電装置を提供する。【解決手段】送電装置100が、LC共振部R1と信号生成部180と送電ECU310とを備える。LC共振部R1は、送電コイル101の一方端にキャパシタ102aが直列に接続されるとともに、送電コイル101の他方端にキャパシタ102bが直列に接続されて構成される。系統電源300の接地部Gに電気的に接続される電圧印加回路182がインピーダンス素子181を介して検出部位Pに所定の電圧を印加することによって、送電コイル101とキャパシタ102bとの間にある検出部位Pの地絡抵抗の大きさを示す電圧信号が生成される。送電ECU310は、生成された電圧信号を用いて送電コイル101の地絡の有無を判定する。【選択図】図1


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    Titel :

    NON-CONTACT POWER TRANSMISSION APPARATUS


    Weitere Titelangaben:

    非接触送電装置


    Beteiligte:
    KIMURA MUNEKIMI (Autor:in) / YUASA HIROAKI (Autor:in)

    Erscheinungsdatum :

    2020-01-16


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Japanisch


    Klassifikation :

    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



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