Double-winding permanent-magnet fault-tolerant motor

A permanent magnet fault-tolerant and winding technology, which is applied to the shape/style/structure of winding conductors, magnetic circuits, electromechanical devices, etc., can solve the problem of low fault tolerance and achieve the effect of electromagnetic isolation and physical isolation

Active Publication Date: 2019-07-02
HUAZHONG UNIV OF SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Aiming at the defects of the prior art, the present invention provides a double-winding permanent magnet fault-tolerant motor, which aims to solve the problem of low fault tolerance caused by coupling between windings in the prior art

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  • Double-winding permanent-magnet fault-tolerant motor

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Embodiment Construction

[0032] 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.

[0033] Such as figure 1 As shown, a double-winding permanent magnet fault-tolerant motor provided in this embodiment includes a stator and a rotor; the stator includes a stator core 1 and a stator winding, and the stator winding includes a main tooth winding 2 and an auxiliary tooth winding 3; the rotor includes a rotor iron Core 4 and magnetic steel 5;

[0034] The stator core 1 is in the sha...

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Abstract

The invention discloses a double-winding permanent-magnet fault-tolerant motor comprising a stator and a rotor, wherein the stator comprises a stator core and a stator winding; the stator winding comprises a main tooth winding and an auxiliary tooth winding; the rotor comprises a rotor core and magnetic steel; the stator iron is in an annular shape, and has an inner ring surface on which a plurality of main teeth and a plurality of auxiliary teeth are circumferentially disposed; the main teeth and the auxiliary teeth are alternately distributed; the main tooth winding is wound around the mainteeth; the auxiliary tooth winding is wound around the auxiliary teeth; the rotor core and the stator core are coaxially arranged; and the magnetic steel is disposed in the rotor core. In the double-winding permanent-magnet fault-tolerant motor provided by the invention, the alternately distributed main and auxiliary teeth can realize effective physical isolation, and the two windings having unequal number of pole pairs have zero mutual inductance and can realize electromagnetic isolation. Finally, magneto-motive force having two numbers of pole pairs is generated by the magnetic steel havingdifferent polarities and different widths, and achieves electromechanical energy conversion in cooperation with the two windings of the stator. Thus, the motor can output torque both in a normal working condition and a fault condition.

Description

technical field [0001] The invention belongs to the technical field of permanent magnet motors, and more specifically relates to a double-winding permanent magnet fault-tolerant motor. Background technique [0002] With the large-scale application of permanent magnet motors, the high reliability of the motor has always been the key performance indicator of the electric drive system. Especially with the further deepening of transportation electrification, such as the emergence of applications such as electric vehicles and multi-electric aircraft, the fault-tolerant performance of motors has attracted more and more attention. The motor is the direct executor of energy conversion and transmission in the electric drive system. Not only the motor is required to have a high power index, but also the motor system is required to be less likely to fail. Adverse effects, by adjusting the parts that work normally so that the motor system continues to operate in a reasonable way for a ...

Claims

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Application Information

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IPC IPC(8): H02K3/28H02K1/27
CPCH02K1/2753H02K3/28
Inventor 谢康福李大伟曲荣海任翔
Owner HUAZHONG UNIV OF SCI & TECH
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