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Permanent magnet fault-tolerant vernier rim propulsion motor with optimized consequent pole rotor surface shape

A rotor surface, permanent magnet fault-tolerant technology, applied in the direction of magnetic circuit shape/style/structure, magnetic circuit static parts, magnetic circuit rotating parts, etc., can solve the problem of low sine degree of back electromotive force and large number of pole pairs of permanent magnets , The utilization rate of permanent magnets is not high, etc.

Active Publication Date: 2021-04-20
DALIAN MARITIME UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the permanent magnet fault-tolerant vernier rim propulsion motor has too many pole pairs of permanent magnets, the cost is high, the magnetic flux leakage between the poles is serious, the utilization rate of the permanent magnets is not high, and the electromagnetic performance of the motor is reduced. The traditional alternating pole rotor is used. The surface of the rotor teeth has no surface shape, the sine degree of the back electromotive force is relatively low, and the electromagnetic torque ripple is relatively large

Method used

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  • Permanent magnet fault-tolerant vernier rim propulsion motor with optimized consequent pole rotor surface shape
  • Permanent magnet fault-tolerant vernier rim propulsion motor with optimized consequent pole rotor surface shape
  • Permanent magnet fault-tolerant vernier rim propulsion motor with optimized consequent pole rotor surface shape

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Embodiment Construction

[0032] In order to make the technical solutions and advantages of the present invention more clear, the technical solutions in the embodiments of the present invention are clearly and completely described below in conjunction with the drawings in the embodiments of the present invention:

[0033] figure 1 For the permanent magnet fault-tolerant vernier rim propulsion motor optimized for the surface shape of the alternating pole rotor of the present invention, figure 2 Partial enlarged view of the alternating pole rotor optimized for the surface shape; a permanent magnet fault-tolerant vernier rim propulsion motor with optimized surface shape for the alternating pole rotor, including rotor 1, propeller 2 and stator 3;

[0034] The rotor 1 includes a unipolar permanent magnet 4, a rotor tooth 5 and a rotor yoke 6;

[0035] The rotor teeth 5 are evenly distributed on the rotor yoke 6, a rotor slot is formed between every two adjacent rotor teeth 5, and the unipolar permanent ma...

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Abstract

The invention discloses a permanent magnet fault-tolerant vernier rim propulsion motor with an optimized consequent pole rotor surface shape, which belongs to the field of electric propulsion systems of water and underwater vehicles such as ships, unmanned ships, underwater robots, submarines, torpedoes and the like, and comprises a rotor, a propeller and a stator, the rotor comprises unipolar permanent magnets, rotor teeth and a rotor yoke; the rotor teeth are uniformly distributed on the rotor yoke, and a rotor groove is formed between every two adjacent rotor teeth; the unipolar permanent magnets are embedded into the rotor grooves; the surfaces of the rotor teeth and the surfaces of the unipolar permanent magnets are bent in shape. The maximum thickness of the rotor teeth are equal to the maximum thickness of the unipolar permanent magnets; the propeller is fixed on the inner surface of the rotor yoke; the stator is provided with a plurality of armature teeth, isolation teeth, winding grooves and armature windings. The armature winding is a single-layer concentrated winding; the permanent magnet fault-tolerant vernier motor and the wheel rim propeller are combined to form the permanent magnet fault-tolerant vernier wheel rim propelling motor, so that the electromagnetic performance of the motor is improved, the cost is reduced, and the fault-tolerant capability is stronger.

Description

technical field [0001] The invention relates to the field of electric propulsion systems for water surface and underwater vehicles such as ships, unmanned boats, underwater robots, submarines and torpedoes, and in particular to a permanent magnet fault-tolerant vernier rim propulsion motor with an optimized surface shape of an alternating pole rotor. Background technique [0002] CN107733106A A permanent magnet fault-tolerant rim propulsion motor for an integrated motor propeller, which belongs to a motor for underwater propellers. The motor includes stator cores, stator slots, armature teeth, isolation teeth, armature windings, large air gaps, and magnetic pole protection sleeves , magnetic pole protection layer, centrifugal permanent magnet, rotor core, propeller welded inside the rotor core. The number of stator slots is 2km, where k is a positive integer, m is the number of motor phases, there are unequal distances between armature teeth and isolated teeth on the stator,...

Claims

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Application Information

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IPC IPC(8): H02K1/27H02K1/12
Inventor 朱景伟乔田怀马瑞王潇逸
Owner DALIAN MARITIME UNIVERSITY
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