Inner and outer double-rotor hybrid excitation doubly salient pole machine

A doubly salient motor and mixed excitation technology, which is applied in the direction of electrical components, electromechanical devices, magnetic circuit static parts, etc., can solve the problems of low electric excitation efficiency, achieve high excitation efficiency, easy adjustment, and increase output power.

Active Publication Date: 2011-02-02
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the electric excitation circuit passes through the permanent magnet, and the electric excitation efficiency is low

Method used

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  • Inner and outer double-rotor hybrid excitation doubly salient pole machine
  • Inner and outer double-rotor hybrid excitation doubly salient pole machine
  • Inner and outer double-rotor hybrid excitation doubly salient pole machine

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Embodiment Construction

[0025] according to figure 1 , figure 2 , image 3 As shown, the structure of the motor of the present invention includes: a salient pole outer rotor core 1, an inner and outer salient pole stator core 2, a salient pole inner rotor core 3, a permanent magnet 4, an armature winding 5 and an excitation winding 6, wherein: the armature winding 5 Wound on the stator teeth of the inner and outer salient pole stator core 2, the inner and outer salient pole stator core 2 every m x n A stator tooth embeds a permanent magnet 4 in its yoke or winds a field winding 6, m is the number of motor phases, n is any positive integer.

[0026] The inner and outer salient pole stator core 2 is made of laminated silicon steel sheets, and the rotor is divided into inner and outer structures, that is, the salient pole outer rotor core 1 and the salient pole inner rotor core 3 .

[0027] Adjacent to field winding 6 (spacing m x n stator teeth) is the permanent magnet 4 (permanent magnet stee...

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Abstract

The invention discloses an inner and outer double-rotor hybrid excitation doubly salient pole machine which comprises a salient pole outer-rotor core (1), inner-outer salient pole stator cores (2), a salient pole inner-rotor core (3), a permanent magnet (4), an armature winding (5) and an exciting winding (6), wherein, the armature winding (5) is wound on stator teeth of the inner-outer salient pole stator cores (2); and the permanent magnet (4) or the exciting winding (6) is embedded into the yoke parts of the inner-outer salient pole stator cores (2) at a distance of m*n stator teeth, wherein, m is the phase number of the salient pole machine and n is any positive integer, and excitation polarity of the salient pole machine changes once at the distance of m*n stator teeth. In the invention, a plurality of repetitive structures can be arranged in the motor along the radius direction to form the hybrid excitation motor with n numbered stators and (n+1)-numbered rotors; and the obtained hybrid excitation doubly salient pole machine has high excitation efficiency, short winding head, small excitation loss and simple control circuit.

Description

technical field [0001] The invention relates to a motor, in particular to a double-salient pole motor with hybrid excitation of inner and outer double rotors, and belongs to the field of double-salient pole structure motors. Background technique [0002] In 1988, Professor Balagunov of the Moscow Aeronautics Institute proposed the structure of a parallel magnetic potential hybrid excitation synchronous generator. The stator is the same as the ordinary synchronous motor, and the rotor is divided into two parts, one part is permanent magnet excitation, and the other part is electric excitation. The electrical excitation part of the motor is a claw pole structure, with many additional air gaps, axial magnetic circuit, large magnetic flux leakage, and restricted electrical excitation function. [0003] Dr. T.Mizuno of Japan proposed an axial / radial magnetic circuit hybrid excitation synchronous generator. The stator armature winding of the motor is a common three-phase symmetr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K16/00H02K1/17H02K1/16H02K1/14
Inventor 陈志辉王娇艳严仰光
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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