Research on Fault-tolerant Technology of Axial Field Flux-switching Fault-tolerant Machine for Electric Vehicle

Since twenty-I’n’st century,the global energy crisis and envkonmental pollution are becoming more and more serious，which also lead to the transformation ofmany industries in the industrial field．As one of the core components of the electric vehicle，the motor and its drive system play an important role in the whole vehicle control system．Permanent magnet synchronous motor(PMSM)has the advantages of high
efficiency and high torque density．As a new type PMSM，axial field flux-switching fault-tolerant (AFFSFT)mot&incorporates the strengths of the axial field flux—switching permanent magnet(AFFSPM) motor and traditional PMSM．With short axial dimensions，the rotor has the advantages of simple structure．Sine wave control method can be used on AFFSFT motor,and its fault-tolerant ability is beRen Therefore，
AFFSFT motor has a wide range of applications in the field of electric vehicles．In this thesis，a three phase AFFSFT motor with 6-stator-teeth／14-rotor-poles for electric vehicle is designed as the research object，and the fault tolerant control method is discussed for the single-phase fault type of the motor．