A pole-changing speed-regulating permanent magnet motor
A permanent magnet motor, pole-changing speed regulation technology, applied to synchronous motors with static armatures and rotating magnets, synchronous motors for single-phase current, synchronous machines, etc. The problems of high cost and complex structure of the pole-changing permanent magnet motor can achieve the effect of eliminating the link of magnetization and demagnetization, low cost and low manufacturing cost.
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[0028] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not constitute a conflict with each other.
[0029] The new pole-changing speed-regulating permanent magnet motor in the present invention is composed of a stator pole-changing winding and a permanent magnet rotor with a cage winding, see figure 1 . Among them, the pole-changing winding can adopt a single-winding pole-changing scheme, that is, a set of pole-changing windings that can correspond to at least two different pole numbers throu...
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