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Segmented rotor type magnetic flux switching motor with hybrid excitation and magnetic adjustment method

A technology of flux switching motors and segmented rotors, which is applied to electrical components, electromechanical devices, and static components of magnetic circuits, etc., can solve problems such as the difficulty in adjusting the magnetic field of permanent magnet flux switching motors, and achieve excellent fault-tolerant performance and reduce The effect of small iron loss and good fault tolerance performance

Inactive Publication Date: 2011-09-14
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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Problems solved by technology

[0009] In order to solve the problem of difficulty in adjusting the magnetic field of permanent magnet flux switching motors, the present invention proposes a segmented rotor hybrid excitation flux switching motor

Method used

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  • Segmented rotor type magnetic flux switching motor with hybrid excitation and magnetic adjustment method
  • Segmented rotor type magnetic flux switching motor with hybrid excitation and magnetic adjustment method

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Embodiment Construction

[0024] like figure 1 As shown, the present invention proposes a segmented rotor hybrid excitation flux switching motor, which is composed of a stator yoke, a permanent magnet, an excitation winding and an armature winding, a non-magnetic sleeve, and a segmented rotor, wherein:

[0025] The stator part consists of stator yoke, permanent magnets, field winding and armature winding. The stator yoke is made of laminated silicon steel sheets, and contains 12 tooth poles, which are arranged alternately by 6 armature teeth and 6 field teeth, respectively winding the armature winding and the field winding. A permanent magnet slot is opened near the inner diameter of the excitation tooth for placing a permanent magnet. The six permanent magnets are all magnetized in the radial direction, and the two adjacent permanent magnets are magnetized in opposite directions, as shown in figure 1 As indicated by the middle arrow, there is a magnetic bridge with a certain width on both sides of t...

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Abstract

The invention discloses a segmented rotor type magnetic flux switching motor with hybrid excitation and a magnetic adjustment method. The motor comprises a stator yoke, a permanent magnet, an exciting winding, an armature winding, a segmented rotor and a non-concentrating flux sleeve, wherein the stator yoke is of a 12-tooth structure and formed by arranging excitation teeth and armature teeth in a staggered mode; the permanent magnet is arranged in the excitation teeth, one surface of the permanent magnet is opposite to the rotor, and two sides of the permanent magnet are provided with concentrating flux bridges; the armature winding and the exciting winding are integrated windings and respectively wound on the excitation teeth and the armature teeth; the segmented rotor is arranged in the non-concentrating flux sleeve, thus the whole rotor forms a cylinder structure; the concentrating flux bridges at the two sides of the permanent magnet provide return circuits for electro-exciting magnetic fields generated by the exciting winding, thus permanent magnet magnetic fields are closed after passing through the permanent magnet, the stator yoke, air gaps and the segmented rotor in sequence, and electro-exciting magnetic fields are closed after passing through the stator yoke, the air gaps and the segmented stator; and a current of the exciting winding is adjusted to realize wide-range magnetic adjustment. The motor has the advantages of wider magnetic adjustment range, good fault-tolerant capability and small wind resistance and oil resistance and can be applied to the field of high-speed aviation.

Description

technical field [0001] The invention relates to a segmented rotor type mixed excitation magnetic flux switching motor and a magnetic adjustment method, which are suitable for the field of mixed excitation high-speed aviation. Background technique [0002] In recent years, with the rapid improvement of people's living standards and consumption levels, my country's consumption of natural energy has risen sharply, and various non-renewable energy sources have gradually shown an absolute reduction trend. Energy conservation and emission reduction have become an enduring topic. Therefore, while the application fields of motor drive and speed control systems are continuously expanding, various economic and technical indicators are also undergoing earth-shaking improvements and changes. New types of drive and speed-adjustable motors, which are widely used in social life, production and military fields, have become the focus of current research. [0003] With the continuous improve...

Claims

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Application Information

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IPC IPC(8): H02K29/00H02K1/17H02K1/14H02K1/22H02K1/24
Inventor 朱婷婷邓智泉王宇
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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