Abstract: A design method for a six-pole hybrid magnetic bearing with symmetrical suspension forces. A magnetic bearing is designed by taking particularity that a permanent magnet of the six-pole hybrid magnetic bearing with symmetrical suspension forces forms magnetic polarity on a stator suspension tooth as the starting point and taking maximum suspension forces in x and y directions and a saturation magnetic density as constraint conditions. Compared with a method for designing the maximum radial suspension force in a +x direction in a manner that a saturation magnetic induction intensity is reached in the +x direction and the magnetic induction intensity in a ?x direction is zero in existing design of a six-pole hybrid magnetic bearing, this method enables the maximum magnetic suspension forces in the +x and +y directions to be same, so that the radial suspension forces of the six-pole hybrid magnetic bearing are designed to be completely symmetrical.

Abstract: A three-suspension pole magnetic suspension sheet switched reluctance motor includes a stator and a rotor. The stator includes a motor stator iron core, a magnetic conductive bridge, and a permanent magnet ring. Three stator suspension teeth and three stator torque teeth are distributed at intervals on an inner periphery of the motor stator iron core. The stator torque teeth are respectively connected to the motor stator iron core. The stator torque teeth are axially distributed and have inverted U-shapes. The magnetic conductive bridge is connected to the motor stator iron core through the permanent magnet ring. The magnetic conductive bridge includes a magnetism collection ring protruding inwards into the rotor. Rotor teeth are distributed on an outer side of the rotor. An outer air gap is between the rotor tooth and the motor stator iron core. An inner air gap is between the rotor tooth and the magnetism collection ring.