To provide a non-contact power supply system for a traveling mobile capable of quick computation of the matching amount and highly accurate impedance matching in realtime, while maintaining high transmission efficiency according to the power storage state of a power reception object and circuit protection on the transmission element side, during travel of the mobile.SOLUTION: Only an amplitude component is identified from first and second reflection coefficients obtained by opening/closing of connection of an element capable of changing the load impedance on the load side, and a power reception element of a power reception side device. Load impedance is calculated by a quadratic formula formed from a calculation formula of two amplitude components. Reactance amount of a variable reactance element required for target impedance matching for matching with the output impedance is calculated from the calculated load impedance. Impedance of the variable reactance element is adjusted, and then increase/decrease in power supply amount is adjusted by controlling the duty ratio according to the power storage state of the power reception object by means of a PWM control circuit.SELECTED DRAWING: Figure 1

    【課題】移動体の走行中に、受電対象物の蓄電状態に応じて高い伝送効率及び送電素子側の回路保護を維持しつつ、リアルタイムで迅速な整合量の算定と高精度のインピーダンス整合を図ることが可能な移動体走行時の非接触給電システムを提供することを目的とする。【解決手段】負荷側の負荷インピーダンスを変更可能な素子と受電側装置の受電素子との接続の開閉によって得られる第1反射係数と第2反射係数から振幅成分のみを特定し、2つの振幅成分の算出式から生成される二次方程式により負荷インピーダンスを算出し、算出された前記負荷インピーダンスから出力インピーダンスとの整合をとるための目標インピーダンスを整合させるために必要な可変リアクタンス素子のリアクタンス量を算定し、可変リアクタンス素子のインピーダンスを調整し、受電対象物の蓄電状態に応じてPWM制御回路により、デューティ比を制御して給電量の増減を調節する。【選択図】図1


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    Title :

    NON-CONTACT POWER SUPPLY SYSTEM FOR TRAVELING MOBILE


    Additional title:

    移動体走行時の非接触給電システム


    Contributors:
    OKUDA SHINGO (author) / YUAN QIAOWEI (author) / SATO TAKU (author)

    Publication date :

    2020-05-28


    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 / H03H IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS , Scheinwiderstandsnetzwerke, z.B. Resonanzkreise



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