Low-harmonic multi-layer unequal-turn winding applied to high-speed permanent magnet motor, and design method thereof

A technology of permanent magnet motor and design method, applied in the direction of electric components, shape/style/structure of winding conductor, magnetic circuit, etc.

Pending Publication Date: 2021-12-03
XI AN JIAOTONG UNIV +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to overcome the above-mentioned shortcoming of prior art, provide a kind of low-harmonic multi-layer unequal turns winding and its design method that are applied to high-speed permanent magnet motor, to solve existing high-speed permanent magnet motor in the prior art There are various problems in the winding of the

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  • Low-harmonic multi-layer unequal-turn winding applied to high-speed permanent magnet motor, and design method thereof
  • Low-harmonic multi-layer unequal-turn winding applied to high-speed permanent magnet motor, and design method thereof
  • Low-harmonic multi-layer unequal-turn winding applied to high-speed permanent magnet motor, and design method thereof

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Embodiment Construction

[0039] The present invention will be further described in detail below with reference to the accompanying drawings:

[0040] In the description of the present invention, it should be noted that the term "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicating the orientation or positional relationship of the orientation or positional relationship shown on the drawings, for convenience of description only and the present invention is to simplify the description, not indicate or imply that the device or element referred to must have a particular orientation in a particular orientation construction and operation, and therefore it should not be construed as limiting of the present invention; the terms "first," "second," "third," for illustrative purposes only, and should not be understood to indicate or imply relative importance; Further, unless otherwise defined and clearly defined, the terms "mounted," "connected to", "connected" are t...

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Abstract

The invention discloses a low-harmonic multi-layer unequal-turn winding applied to a high-speed permanent magnet motor, and a design method thereof. The permanent magnet motor is a novel winding topological structure: low-space harmonic multi-layer unequal-turn winding. The winding topological structure is characterized in that each phase of winding of the motor occupies a whole motor slot under a polar distance, two or more layers of windings are arranged in each stator iron core groove, the number of turns of each layer of winding is different, and the total number of conductors in each stator iron core groove is equal. By properly adjusting and selecting the number of turns of each layer of winding in each groove of the stator iron core, the winding type can generate air gap magnetomotive force which tends to be in a sine shape, and space harmonics of the high-speed permanent magnet motor are reduced, so that eddy current loss, torque ripple and the like of the high-speed permanent magnet motor are reduced, and the output performance of the high-speed permanent magnet motor is improved.

Description

Technical field [0001] The present invention belongs to the field of high-speed permanent magnet motor, particularly, to a high-speed permanent magnet motor is applied to the winding turns of unequal low harmonic and its design method. Background technique [0002] High-speed permanent magnet motor having a high power density, high efficiency, wide speed range and small size, etc., are widely used in microturbines, centrifugal air compressor, flywheel energy storage, distributed generation of new energy field. [0003] For high speed permanent magnet motor, the motor rotation speed per minute up to tens or even hundreds of thousands of revolutions, ultra high-speed operation such that the frequency of the alternating magnetic field of the motor is very high, higher harmonic frequencies, core loss in the high-speed permanent magnet motor , eddy current loss of the rotor is much higher than the conventional permanent magnet motor, in addition, also cause harmonic vibration, noise, ...

Claims

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Application Information

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IPC IPC(8): H02K1/16H02K3/12H02K3/28
CPCH02K1/165H02K3/12H02K3/28H02K2213/03
Inventor褚帅君梁得亮贾少锋梁阳
OwnerXI AN JIAOTONG UNIV