PM motor: permanent magnet synchronous motor (divided into IPM and SPM, i.e., convex pole and hidden pole) A synchronous motor that generates a synchronous rotating magnetic field by the excitation of a permanent magnet is called a permanent magnet synchronous motor.
Operating principle: permanent magnets as the rotor generates rotating magnetic field, three-phase stator windings in the rotating magnetic field under the action of the armature reaction, induction of three-phase symmetrical current, this time rotor kinetic energy is converted into electrical energy, permanent magnet synchronous motor as a generator.
Expanded information:
The entire motor stator-rotor axial are divided into two segments, the middle of the spacer by the separation of the magnetic sheet, the two segments between each other forked at an angle of a step, each are composed of stator, rotor and set in the stator. The stator, rotor and a ring winding in the stator are composed of. Each section of the stator bore circumference of the pole piece was claw-shaped for ring-shaped symmetrical arrangement, outside and around two sets of reverse series ring winding, two sections of the stator ring magnet coaxial coaxial connection radial magnetization.
Applications: computer peripherals, photographic systems, point of view combination device, valve control, CNC machine tools, automatic winding machines, medical equipment, electronic clocks and watches, automatic embroidery machines, office automation, home appliance industry.
Baidu Encyclopedia-Permanent Magnet Stepping Motor