Analysis and Optimization of a 2-D Magnet Array with Hexagon Magnet

作者：Liu, G.^*; Zhou, Y.; Zhou, R.; Ming, W.; Lino, L.

来源：Applied Computational Electromagnetics Society Journal, 2013, 28(10): 976-983.

• Effective amplitude
• force ripples
• genetic algorithm
• hexagon magnet
• magnet array
• planar motor

This paper introduces the hexagon permanent magnets, which are in x- or y-axis magnetized directions to the 2-D permanent magnet array for planar motor. Through the scalar magnetic potential equation, finite element method and effective amplitudes, the harmonic and analytical models are derived and verified. The reduction of the higher harmonics of z-component of the magnetic flux density with hexagon magnets is verified. Low higher harmonics of z-component of the magnetic flux density with hexagon magnets is optimized by the genetic algorithm. Comparing with the 2-D Halbach magnet arrays, the new magnet array has larger z-component of the magnetic flux density and smaller higher harmonics of z-component of the magnetic flux density, which can reduce the force ripples of planar motor.

• 出版日期2013-10
• 单位华中科技大学