Analytical calculation of no-load air-gap magnetic field in surface-mounted permanent magnet motors with rotor eccentricity

作者：Qiu Zhijian^*; Li Chen; Zhou Xiaoyan; Zhang Yuejin

来源：Transactions of China Electrotechnical Society, 2013, 28(3): 114-121.

• Air-gap magnetic field
• Analytical calculation
• Analytical expressions
• Boundary perturbation methods
• Magnetic vector potentials
• Rotor eccentricity
• Surface-mounted permanent magnet motors
• Unbalanced magnetic force

In allusion to the problem of the surface-mounted permanent magnet motor with the rotor eccentricity, a static eccentric analytical model was established based on the boundary perturbation method, where the analytical expressions of eccentric no-load air-gap magnetic field flux density were deduced by the use of magnetic vector potential. The eccentric disturbance Ε is dimensionless in the analytical model. Comparing the flux density and the unbalanced magnetic force of the analytical results with the finite element analysis results, the correctness and effectiveness of the eccentric model is demonstrated.

• 出版日期2013
• 单位上海大学