Aviation six-phase compatible permanent magnet synchronous motor based on Halbach distribution

Abstract

Abstract Due to the current domestic environment, the development of advanced engines, such as ultra-high-speed aircraft, has put forward strict requirements for motor structure systems. Making a comparison with the traditional motor structure, the six-phase compatible permanent magnet synchronous motor, which is based on Halbach distribution, has many other advantages obviously, such as smaller volume, a higher number of functional units contained within a unit volume is higher, and a stronger fault tolerance. This paper studies the electromagnetic design, electromagnetic analysis, and fault tolerance analysis of the six-phase compatible permanent magnet synchronous motor based on the background of the motor structure. Designs and simulations were carried out on the six-phase compatible permanent magnet synchronous motor, which was designed based on the Halbach distribution. The designed motor meets the requirements of torque and temperature, and this paper also has researched the solution of the six-phase compatible permanent magnet synchronous motor under the situations of one- or two-phase winding break. Based on the analysis of torque fluctuation in the normal state and fault state, the output power fluctuation of the six-phase compatible permanent magnet synchronous motor under different faults is obtained, which reflects the high fault tolerance performance of this motor. It provides another high-performance motor option for the engines of current high-speed aircraft.