This paper focuses on the research of a piecewise structure of electric vehicle road dynamic wireless charging method, which uses multiple transmitting coils at the transmitter to realize the wireless power supply for the running electric vehicle. Based on the structure of dynamic wireless charging system of electric vehicle with magnetically coupled resonance, the equivalent circuit theory is used to model and analyze the system. A method of receiving end location based on photoelectric detection is proposed. The receiving end position is determined by photoelectric diffuse reflectance sensor, and then the transmitting coil of corresponding position is opened to realize receiving. Real-time charging. Maxwell and Simulink software are used to verify and analyze the system. The magnetic field distribution law of the system using positioning control is determined, and the feasibility of the positioning control method is proved.
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