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Magnetic pole structure for switched reluctance motor

A technology of switched reluctance motor and magnetic pole structure, applied in the direction of magnetic circuit shape/pattern/structure, electrical components, electromechanical devices, etc., can solve the problems of unsatisfactory electric vehicle application, increased manufacturing cost, energy loss and other problems

Inactive Publication Date: 2009-09-23
应方顺
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the use of inertial bodies will consume more energy, increase the volume of switched reluctance motors, and increase manufacturing costs
Therefore, this scheme is not ideal for electric vehicles powered by batteries

Method used

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  • Magnetic pole structure for switched reluctance motor
  • Magnetic pole structure for switched reluctance motor
  • Magnetic pole structure for switched reluctance motor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0014] Such as figure 1 Shown: This embodiment is a magnetic pole structure of a three-phase two-torque switched reluctance motor. The switched reluctance motor of this embodiment is an outer rotor motor. The stator 1 of the switched reluctance motor is provided with a magnetic pole 2 and a slot 3 is arranged between two adjacent magnetic poles, and an induction coil 4 is wound on the magnetic pole 2; a magnetic pole 6 is distributed on the rotor 5 of the switched reluctance motor, and two adjacent magnetic poles There are slots 7 between them. 14 magnetic poles 6 are uniformly distributed on the rotor 5; 12 magnetic poles 2 are arranged on the stator 1; two adjacent magnetic poles close to each other on the stator 1 form a group of current loops, and the angle formed by the two adjacent magnetic pole axes is the same as The angle formed by two adjacent magnetic pole axes of the rotor is the same. The magnetic pole structure of this embodiment can cause the magnetic poles b...

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PUM

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Abstract

A magnetic pole structure of a switched reluctance motor. The stator of the switched reluctance motor is provided with magnetic poles, two adjacent magnetic poles are provided with slots, and induction coils are wound around the magnetic poles; Slots are provided between adjacent magnetic poles. An integer multiple of 7 magnetic poles are evenly distributed on the rotor; the air gap width of the magnetic pole is the same as that of the slot; an integer multiple of 6 magnetic poles are arranged on the stator. When the radial force on one set of magnetic poles does not reach the maximum and the tangential force on the air gap does not reach the minimum, the other set of magnetic poles has generated radial force and air gap tangential force. The tangential force and the synthetic air gap tangential force reduce the pulsation amplitude of the electromagnetic torque, thereby reducing the pulsation and noise of the switched reluctance motor.

Description

Technical field: [0001] The invention relates to a magnetic pole structure of a switched reluctance motor. Background technique: [0002] The switched reluctance motor provides power to the coils on the multi-phase stator regularly through the controller, so as to generate rotational torque and drive the rotor to rotate. The switched reluctance motor has been widely valued because of its obvious energy-saving effect. However, there are obvious defects of large pulsation and large noise in the working process of the switched reluctance motor. The application range of the switched reluctance motor is limited. For example, the Chinese patent "03109449.X" proposes a "noise reduction structure for switched reluctance motors". The technical solution reduces noise by setting an additional inertial body on one side of the rotor for changing the resonance frequency. However, the use of the inertial body will consume more energy, increase the volume of the switched reluctance moto...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K15/02H02K1/12H02K1/22H02K29/00
Inventor 应方顺汪宏政
Owner 应方顺