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Modular hybrid excitation switched reluctance motor

A technology of switched reluctance motor and mixed excitation, which is applied to synchronous motors with stationary armature and rotating magnets, synchronous motors for single-phase current, magnetic circuits, etc., and can solve the problem of increasing the power density of switched reluctance motors To achieve the effect of improving the performance-to-volume ratio and performance-to-weight ratio, flexible layout, and good fault-tolerant performance

Active Publication Date: 2018-10-09
JIANGSU UNIV
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problems existing in the existing hybrid excitation switched reluctance motor, and propose a new modular hybrid excitation switched reluctance motor, which can increase the switched reluctance without reducing the stator winding space power density of the motor

Method used

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  • Modular hybrid excitation switched reluctance motor
  • Modular hybrid excitation switched reluctance motor
  • Modular hybrid excitation switched reluctance motor

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Embodiment Construction

[0018] see figure 1 , figure 2 and image 3 , the present invention includes a rotating shaft 9 , an outer stator 1 , an inner rotor 2 , a permanent magnet 3 and a winding 8 . In the middle is the rotating shaft 9, the outer coaxial fixed sleeve of the rotating shaft 9 has an inner rotor 2 and an outer stator 1, the inner rotor 2 is coaxially covered with an outer stator 1, and a radial air gap is left between the inner rotor 2 and the outer stator 1.

[0019] The outer stator 1 consists of N evenly distributed along the circumference s The C-shaped stator block is composed of two identical C-shaped stator blocks. The C-shaped stator block has a C-shaped axial section. In this way, the axial side walls of the C-shaped stator block form two stator teeth, and the two stator teeth are located in the axial direction. The two sides are symmetrical along the axial center of the rotating shaft 9 . A winding 8 is wound on the two stator teeth of the C-shaped stator block, which i...

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Abstract

The invention discloses a modular hybrid excitation switched reluctance motor; an outer stator is composed of Ns identical C-shaped stator blocks having a C-shaped axial section, which are uniformly distributed along the circumference; the two axial side walls of the C-shaped stator block form two stator teeth; the two stator teeth are wound with windings; the C-shaped opening of the C-shaped stator block faces radially inward, and the C-shaped opening forms a stator slot; an inner rotor is composed of Nr identical C-shaped rotor blocks having a C-shaped axial section, which are uniformly distributed along the circumference, the two axial side walls of the C-shaped rotor block form two rotor teeth, the C-shaped opening of the C-shaped rotor block faces radially outward, and the C-shaped opening of the C-shaped rotor block forms a rotor slot; a fixed permanent magnet is fixedly embedded in the C-shaped opening of each C-shaped rotor block, and each permanent magnet is axially magnetizedand all the magnetizing directions of the permanent magnets are consistent; a modular structure is adopted; and each magnet loop is independent of each other, is completely isolated, and has good fault tolerance.

Description

technical field [0001] The invention belongs to the technical field of motors, in particular to a hybrid excitation switched reluctance motor. Background technique [0002] There is no permanent magnet on the stator and rotor of the traditional switched reluctance motor, which has a simple structure and high reliability. Down, the torque is smaller. In order to overcome the shortcomings of traditional switched reluctance motors, adding permanent magnets to the motor can increase the power density of the motor. For example, the Chinese Patent Publication No. CN104935095A, titled "A U-shaped Stator Hybrid Excitation Switched Reluctance Motor" discloses a U-shaped stator hybrid excitation switched reluctance motor, which is composed of several U-shaped stator blocks. For the stator, excitation windings are wound on the two stator teeth of each U-shaped stator block, and a permanent magnet is arranged on the inner side of each U-shaped stator block to increase the power densit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K21/16H02K19/10H02K1/14H02K1/27H02K1/24
CPCH02K1/141H02K1/24H02K1/276H02K19/10H02K21/16H02K2213/03
Inventor 孙晓东刁凯凯陈龙杨泽斌韩守义李可
Owner JIANGSU UNIV