Five-phase doubly-salient motor

A double-salient pole motor and motor casing technology, which is applied in the direction of electrical components, electromechanical devices, magnetic circuit shape/style/structure, etc., can solve problems such as 10i/12i-pole five-phase double-salient pole motors that have not been retrieved, and achieve The effect of high fault tolerance, small internal resistance and large number of rotor poles

Active Publication Date: 2014-05-21
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

[0006] At present, the 10i/12i pole five-phase double salient pole motor i

Method used

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Embodiment Construction

[0029] Below in conjunction with accompanying drawing, technical scheme of the present invention is described in further detail:

[0030] The invention discloses a five-phase double-salient pole motor, which comprises a rotor core, a shaft, a stator core, an excitation coil, an armature coil and a motor casing. The motor casing is provided with a bearing, and the shaft passes through the bearing. fixed on the motor casing, the rotor core is fixed on the shaft;

[0031] The number of stator poles of the stator core is 10i, the number of rotor poles of the rotor core is 12i, i is a natural number that is an integral multiple of 2 or 3, and both the stator core and the rotor core adopt a salient pole structure;

[0032] When 10i is divisible by 8, an excitation coil is wound every 4 stator poles on the stator core; when 10i is divisible by 6, an excitation coil is wound every 3 stator poles on the stator core; when 10i is divisible by When 4 is divisible but cannot be divisible ...

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Abstract

The invention discloses a five-phase doubly-salient motor. The motor comprises a rotor iron core, a shaft, a stator iron core, magnet exciting coils, armature coils and a motor shell, wherein the stator iron core and the rotor iron core adopt a salient pole type structure respectively, the number of poles of the stator of the stator iron is 10i, and the pole-arc coefficient is 0.333; the number of poles of the rotor of the rotor iron is 12i, and the pole-arc coefficient is 0.4 or 0.5, and i is an integral multiple of 2 or 3; the armature coils are wound on the stator poles of the stator iron core by adopting an integrated winding way, a one-phase armature winding is formed by serially connecting the synchronous armature coils, and the phase positions of all phases of armature windings differ at the electrical degree of 72 degrees; the magnet exciting coils are uniformly wound on the stator poles of the stator iron core, the winding directions consist with the magnetic fields of the linked armature coils, and the directions of the magnetic fields generated by the adjacent magnet exciting coils are opposite. The motor is provided with five-phase windings, so that fault freedom is good; furthermore, the electrodynamic potential amplitudes of all phases are equal, so that share output can be realized; and the number of the rotor poles of the motor is large, so that the motor is specifically applicable to generators with higher reliability requirements.

Description

technical field [0001] The invention relates to the technical field of special motor body design, in particular to a five-phase double salient pole motor. Background technique [0002] The motor is a key component of electromechanical energy conversion. With the development of aviation, automobile, wind power and other industries, the system has higher and higher requirements for the reliability of the motor. [0003] The doubly salient pole motor is a new type of motor consisting of a power electronic power converter, a permanent magnet or electromagnetic excitation unit, a controller, and a motor body with a salient pole stator and rotor structure. As a new type of variable reluctance motor, the ratio between the maximum value and minimum value of reluctance is large, and it has good electromechanical energy conversion characteristics. Doubly salient motors are divided into electric excitation doubly salient motors, permanent magnet doubly salient motors and hybrid excita...

Claims

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Application Information

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IPC IPC(8): H02K29/00H02K1/14H02K1/24H02K3/28
Inventor 史立伟周波魏佳丹赵星
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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