Research On Contactless Power Supply Of High Speed Maglev Train Based On Mcr-Wpt

Based on the power supply mode of Shanghai high-speed maglev train, this paper proposes a new method to realize contactless power supply - of high-speed maglev train in the full speed range, combined with the magnetic coupling resonant wireless power transfer (MCR-WPT) technology. Firstly, the MCR-WPT system model applied to high-speed maglev train is analyzed theoretically, and the transmission power and efficiency of the system are obtained. Secondly, the self-inductance, mutual inductance and coupling coefficients of the linear generator in Shanghai high-speed maglev train are calculated by Maxwell simulation software when the linear generator coils and the long stator windings move relatively. Finally, Simplorer is used to build the circuit model. Comparisons have been made between the output power and efficiency of MCR-WPT system at different frequencies and currents, and the operating frequency and input current value of the system have been determined. The simulation validates the feasibility of MCR-WPT's application on the high-speed maglev train.