To provide a wireless power transmission system and a power supply station capable of grasping a positional relation between a power transmission coil and a power reception coil with a simple configuration.SOLUTION: A power supply station 10 includes: a power supply station 10 having power supply units 11A and 11B and a processor 12; and a moving body to which power is wirelessly supplied from the power supply station. Each power supply unit includes a power transmission unit 111 having a plurality of power transmission coils and capacitors, and a power conversion unit 112 that converts DC power into AC power. The moving body includes a power receiving coil and a capacitor. Each power transmission coil is arranged such that cross coupling is smaller than a coupling coefficient between each power transmission coil and the power reception coil. The processor 12 includes a switching control unit 121 that controls the power conversion unit so that phase difference between an output voltage and an output current of the power conversion unit becomes zero, and a power receiving coil position grasping unit 122 that grasps a position of the power receiving coil with respect to the power transmission coil based on a switching frequency.SELECTED DRAWING: Figure 2
【課題】簡易な構成で送電コイルと受電コイルとの位置関係を把握可能な無線電力伝送システム及び給電ステーションを提供する。【解決手段】給電ステーション10は、電源ユニット11A、11B及びプロセッサ12を有する給電ステーション10と、給電ステーションから無線給電される移動体を備える。各電源ユニットは、複数の送電コイル及びキャパシタを有する送電部111と、直流電力を交流電力に変換する電力変換部112と、を有する。移動体は、受電コイル及びキャパシタを有する。各送電コイルは、クロスカップリングが各送電コイルと受電コイルとの間の結合係数より小さくなるように配置される。プロセッサ12は、電力変換部の出力電圧と出力電流の位相差が0になるように電力変換部を制御するスイッチング制御部121と、スイッチング周波数に基づき受電コイルの送電コイルに対する位置を把握する受電コイル位置把握部122と、を有する。【選択図】図2
WIRELESS POWER TRANSMISSION SYSTEM, POWER SUPPLY STATION, AND WIRELESS POWER SUPPLY PROGRAM
無線電力伝送システム、給電ステーションおよび無線給電プログラム
08.04.2024
Patent
Elektronische Ressource
Japanisch
IPC: | B60M Speiseleitungen oder Vorrichtungen am Gleis für elektrisch angetriebene Fahrzeuge , POWER SUPPLY LINES, OR DEVICES ALONG RAILS, FOR ELECTRICALLY-PROPELLED VEHICLES / 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 |
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