PROBLEM TO BE SOLVED: To provide a non-contact power supply system and a power reception device which can suppress when a coupling coefficient varies, variation in impedance obtained when a power reception side is viewed from a power supply.SOLUTION: A non-contact power supply system 100 includes a power transmission device 101 and a power reception device 103. The power transmission device includes a power transmission coil 113 to which AC power having a certain frequency is input from a power supply 111. The power reception device includes a power reception coil 121 which is magnetically coupled to a power transmission coil with a certain coupling efficient, and a first power reception side series element 123 which is connected to the power reception coil in series and has an imaginary number impedance jZ. In the non-contact power supply system, the frequency, the coupling efficient, and the imaginary number impedance are values satisfying expression 1.SELECTED DRAWING: Figure 1
【課題】結合係数が変化した場合に、電源から受電側を見たインピーダンスの変動を抑えることができる非接触給電システム及び受電装置を提供する。【解決手段】非接触給電システム100は、送電装置101と受電装置103とを備える。送電装置は、電源111からある周波数の交流電力が入力される送電コイル113を含む。受電装置は、ある結合係数で送電コイルと磁気結合する受電コイル121と、受電コイルに直列に接続され、虚数インピーダンスjZS2iを有する第1の受電側直列素子123とを含む。この非接触給電システムにおいて、周波数と結合係数と虚数インピーダンスとは、[数1]を満たすことに基づく値である。【選択図】図1
NON-CONTACT POWER SUPPLY SYSTEM AND POWER RECEPTION DEVICE
非接触給電システム及び受電装置
2017-03-02
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 / H01F MAGNETS , Magnete |
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