To appropriately detect the intensity of a magnetic field generated by a plurality of power transmission coils.SOLUTION: A ground power supply device 1 supplies electric power to a vehicle 5 having a power receiving unit 14 in a non-contact manner, and includes: a plurality of resonance circuits 43 each including a power transmission coil 44 for transmitting electric power to the vehicle; a power supply device for supplying AC power to the resonance circuit; a plurality of magnetic field intensity detectors 33 for detecting intensity of a magnetic field generated by supplying the AC power to the resonance circuit; and a diagnostic device 34 for diagnosing abnormality of the resonance circuit or the power receiving unit based on intensity of the detected magnetic field. When AC power is supplied to the resonance circuit including some power transmission coils, except for the power transmission coil disposed adjacent to each magnetic field intensity detector, out of the plurality of power transmission coils, the diagnostic device diagnoses abnormality related to the power receiving unit of the vehicle located opposed to the resonance circuit to which the AC power is supplied or the power transmission coil of the resonance circuit based on intensity of the magnetic field detected by the magnetic field intensity detector.SELECTED DRAWING: Figure 3
【課題】複数の送電コイルによって生成された磁界の強度を適切に検出する。【解決手段】受電ユニット14を有する車両5へ電力を非接触で給電する地上給電装置1は、車両へ電力を送電する送電コイル44をそれぞれ含む複数の共振回路43と、共振回路へ交流電力を供給する電力供給装置と、共振回路へ交流電力を供給することによって発生した磁界の強度を検出する複数の磁界強度検出機33と、検出された磁界の強度に基づいて共振回路又は前記受電ユニットの異常を診断する診断装置34と、を有する。診断装置は、複数の前記送電コイルのうち各磁界強度検出機に隣接して配置された送電コイルを除く一部の送電コイルを含む共振回路に交流電力が供給されているときにその磁界強度検出機によって検出された磁界の強度に基づいて交流電力が供給されている共振回路又はこの共振回路の送電コイルに対向して位置する車両の受電ユニットに関する異常を診断する。【選択図】図3
GROUND POWER SUPPLY DEVICE
地上給電装置
2024-05-07
Patent
Electronic Resource
Japanese
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 |
European Patent Office | 2023
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