Optimizing Performance Parameters of Halbach Array Rotor Based on Taguchi Algorithm

Abstract

Due to the long development cycle and high cost of aeronautical motor, the performance parameters of the rotor with Halbach array structure are optimized by Taguchi algorithm. The performance parameters mainly include the thickness of magnetic steel, the number of blocks per pole as well as magnetizing angle. The evaluation index of the optimized parameters is that the volume of the magnetic steel used is the smallest, the air gap magnetic density is the largest and its shape is closest to the sinusoidal. The experimental group is verified by finite element method. Finally, the rotor structure parameters satisfying the high power density and high air gap magnetic density of aeronautical motor are determined, which shortens the product development cycle and reduces cost of manufacture.