SYSTEM AND METHOD FOR ELECTRIC POWER CONTACTLESS TRANSFER TO VEHICLE Russian patent published in 2013 - IPC B60L9/00 

FIELD: transport.

SUBSTANCE: invention relates to electric transport and may be used for supply of trolleybuses, trams, electric vehicles, etc. Proposed system comprises power source, frequency inverter, resonance circuit, step-up HF transformer, one-wire traction line arranged in immediate proximity to vehicle electric power receiver, resonance step-down transformer, rectifier and inverter. Besides, it comprises shielded one-wire supply line arranged parallel to electric vehicle travel and connected with resonance step-up HF transformer. Said one-wire traction line is composed by isolated sections in length smaller than resonance wavelength. Proposed method comprises upping frequency and voltage, generating resonance electric oscillations in one-wire line and transmitting electric power by electric induction via receiver to vehicle. Shielded supply line is connected with every isolated section of traction line via electronic switch with control unit and vehicle location sensor arranged at section front and rear to connect shielded supply line with traction line at vehicle approach to section and disconnect it therefrom at its moving off.

EFFECT: reduced power losses and higher efficiency.

2 cl, 2 dwg