Permanent magnet fault-tolerant motor based on alternate tooth winding and unequal stator pitch
A permanent magnet fault-tolerant, stator tooth technology, applied in the direction of magnetic circuits, electromechanical devices, electrical components, etc., can solve the problems of difficult phase isolation design of motors, and achieve increased short-circuit current suppression ability and magnetic field weakening ability, short-circuit current suppression ability and The effect of enhanced field weakening capability, increased torque density and power density
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Embodiment 1
[0028] Embodiment 1 Inner rotor motor
[0029] like figure 2 As shown, a permanent magnet fault-tolerant motor based on alternate-tooth windings and unequal stator pitches includes a stator 10 and a rotor 20 coaxially set, and the stator is set on the outer periphery of the rotor.
[0030] The pole-slot coordination of the permanent magnet fault-tolerant motor satisfies Ns'=2p'±1, where Ns'=Ns / t, p'=p / t, Ns is the number of stator slots, p is the number of rotor pole pairs, and t is Ns and p greatest common divisor of . like figure 2 For the 30-slot 28-pole motor shown, t=2, Ns=30, p=14. In addition, such as 9-slot 8-pole motor (t=1) and so on.
[0031] The stator has Ns / 3 fault-tolerant teeth 11 and 2Ns / 3 armature teeth 12, and the Ns / 3 fault-tolerant teeth are uniformly arranged along the inner circumference of the stator. exist figure 2 , with 10 fault-tolerant teeth and 20 armature teeth.
[0032] Two armature teeth are arranged between two adjacent fault-toleran...
Embodiment 2
[0047] Embodiment 2 Outer rotor motor
[0048] The rotor is coaxially sleeved on the outer circumference of the stator, and Ns / 3 fault-tolerant teeth are evenly arranged along the outer circumference of the stator, and the rest of the structure is the same as that of Embodiment 1.
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