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A Switched Reluctance Motor with Position Detection Coil

A switched reluctance motor and detection coil technology, applied in magnetic circuits, electromechanical devices, electrical components, etc., can solve the problems of motor saturation, large detection errors, etc., and achieve low core loss, strong starting ability, and high detection accuracy. Effect

Active Publication Date: 2019-07-26
南京埃克锐特机电科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the position detection coil in the conventional structure switched reluctance motor is seriously affected by the saturation of the motor, and the detection error is large

Method used

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  • A Switched Reluctance Motor with Position Detection Coil
  • A Switched Reluctance Motor with Position Detection Coil
  • A Switched Reluctance Motor with Position Detection Coil

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Embodiment Construction

[0025] The technical scheme of a switched reluctance motor with position detection coil of the present invention will be described in detail below in conjunction with the accompanying drawings:

[0026] Such as figure 1 Shown is a two-dimensional structure diagram of the motor of the present invention, where 1 is the armature stator, 2 is the detection stator, 3 is the rotor, 4 is the armature coil, and 5 is the detection coil.

[0027] The switched reluctance motor with position detection coil is a single-phase working motor, including an armature stator, a detection stator, a rotor, an armature coil, and a detection coil;

[0028] The armature stator is composed of 4 C-shaped structures, and the detection stator is composed of 4 C-shaped structures;

[0029] The C-shaped structure of the armature stator is larger than the C-shaped structure of the detecting stator;

[0030] Each C-shaped structure of the armature stator includes 2 teeth; each C-shaped structure of the detection stator...

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Abstract

The present invention discloses a switched reluctance motor with position detection coil(s). A motor stator consists of an armature stator and a detection stator, and the armature stator and the detection stator are isolated with each other. The armature stator and the detection stator consist of 4 C-shaped structures, and each C-shaped structure is provided with 2 teeth. Each tooth of each C-shaped structure of the armature stator is winded with an armature coil, and each tooth of each C-shaped structure of the detection stator is winded with a detection coil. An armature magnetic circuit anda detection magnetic circuit are short magnetic circuit structures, the armature magnetic circuit and the detection magnetic circuit are decoupled from each other, the inductance of a detection winding is not affected by the current of the armature winding, that is, not affected by the motor saturation degree, and the detection precision of the rotor position is high. The armature magnetic circuit and the detection magnetic circuit are short magnetic circuits. The motor has the advantages of low core loss and high efficiency. According to the motor, only the arranging mode of axial series connection is needed, three single-phase motor rotors are dislocated to a certain angle with each other, and thus the three-phase switched reluctance motor with strong starting capability, low core lossand self-contained position detection function can be manufactured.

Description

Technical field [0001] The invention relates to a switched reluctance motor with a position detection coil, belonging to the technical field of switched reluctance motors of the motor category. Background technique [0002] The stator and rotor of the switched reluctance motor have a double salient pole structure. The rotor has no windings and permanent magnets. It has the characteristics of simple and firm structure, low cost, high temperature resistance and high speed adaptability. It is used in military and aviation, such as aerospace, precision machining, and electric vehicles. It is widely used in the civil field. [0003] In applications with high reliability requirements or harsh environments, position sensor detection technology is a technical bottleneck of switched reluctance motors. In order to improve the reliability of the switched reluctance motor system, position sensorless technology is often used. Among many position sensorless technologies, the positionless techn...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K29/12H02K1/14H02K1/24H02K3/20H02K3/28
CPCH02K1/141H02K1/24H02K3/20H02K3/28H02K29/12H02K2213/03
Inventor 刘泽远蔡骏魏明霞
Owner 南京埃克锐特机电科技有限公司
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