Magnetic Field Analysis of CRH3 Emu Motor

For the motor of CRH3 EMU, its stator is composed of three-phase loose embedded windings, while the rotor is a cage guide bar. The motor is widely used in CRH3 EMU and agricultural equipment in China. It has the advantages of simple structure, reliable operation, convenient maintenance and low price. This paper is mainly based on metal magnetic memory detection technology and electromagnetic principle. Therefore, in this paper, I will model CRH3 EMU through electromagnetism, magnetic memory detection technology and Maxwell software to create the magnetic field environment, then analyze the magnetic field changes around the motor under different current conditions, and analyze the magnetic field changes of the motor within the magnetic field range. Finally, the distribution law of motor magnetic field under different currents is summarized, and the change of motor magnetic field with time and current is analyzed.