Research on Double Stator Single Rotor Magnetic Field Modulation Permanent Magnet Motor

Permanent magnet synchronous motors are widely used as drive motors for new energy electric vehicles due to their high torque density. In order to meet the various working conditions of new energy electric vehicles, such as smooth starting, emergency braking, heavy-duty hill climbing, high-speed cruising, as well as frequent acceleration and deceleration, a double stator single rotor magnetic field-modulated permanent magnet synchronous motor (DSSR-FMPMSM) is designed. The motor realizes multiple operation modes through the flexible control of the inner and outer stator windings, and improves the torque output capability and power factor of the motor by making full use of the multiple pairs of inner and outer air-gap magnetic density harmonics. It is verified by ansys simulation that the proposed double stator single rotor magnetic field modulated permanent magnet motor can not only achieve high torque density and power density, but also realize different driving conditions. This double stator single rotor magnetic field modulated permanent magnet motor provides a technical guarantee for the drive application of new energy electric vehicles.