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PERFORMANCE ANALYSIS OF STATOR HYBRID EXCITATION MAGNETIC PLANETARY GEAR MACHINES

By Y. Yang, Z. H. Liang, and C. H. Sun

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Abstract:
Drawing on the ideas of stator permanent magnet motors, hybrid planetary gears are integrated into permanent magnet motors using hybrid excitation on the stator side, and a new type of stator-hybrid magnetic planetary gear motor for steering systems is proposed. The magnetic gear motor overcomes the shortcomings of the existing magnetic gear structure and performance, and has the advantages of high reliability, strong torque transmission capacity and large transmission ratio. At the same time, it can adjust the levitation force and power in real time as the working conditions change, improving motor efficiency. This paper focuses on the topology and working principle of the stator-excited planetary magnetic gear motor. According to the finite element analysis, the magnetic field distribution is obtained, and the rationality of the magnetic field is analyzed. Theoretical analysis and experimental results show that the magnetic circuit of the stator-hybrid excitation planetary gear motor is correct, and the torque can meet the design requirements. This method provides reference and application value for the development of high performance and low cost permanent magnet planetary gear motors.

Citation:
Y. Yang, Z. H. Liang, and C. H. Sun, "Performance Analysis of Stator Hybrid Excitation Magnetic Planetary Gear Machines," Progress In Electromagnetics Research M, Vol. 92, 147-155, 2020.
doi:10.2528/PIERM20022701

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