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Hybrid radial conical magnetic bearing switch reluctance machine and control method

A technology of switched reluctance motor and reluctance motor, which is applied in the direction of AC motor control, control system, electrical components, etc., can solve the problems of unfavorable system simplification and reliability, low integration, large eddy current loss and temperature rise, etc.

Active Publication Date: 2017-05-10
NANJING UNIV OF POSTS & TELECOMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The magnetic levitation switched reluctance motor is usually composed of a five-degree-of-freedom magnetic bearing and a switched reluctance motor. The traditional permanent magnet bias magnetic bearing requires a large thrust plate, which will cause large eddy current loss and temperature rise; while the traditional cone The shape electric excitation magnetic bearing has more control objects, and the axial suspension force is related to the square of the control winding current, which is not conducive to the simplification and reliability of the system
In addition, the motor and the magnetic bearing control system in the traditional magnetic levitation switched reluctance motor system are independent, and the integration degree is not high

Method used

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  • Hybrid radial conical magnetic bearing switch reluctance machine and control method
  • Hybrid radial conical magnetic bearing switch reluctance machine and control method

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Embodiment Construction

[0077] The technical scheme of a hybrid radial tapered magnetic bearing switched reluctance motor and control method of the present invention will be described in detail below in conjunction with the accompanying drawings:

[0078] Such as figure 1 As shown, it is a three-dimensional structural schematic diagram of Embodiment 1 of the hybrid radial tapered magnetic bearing switched reluctance motor of the present invention, wherein, 1 is the stator of the reluctance motor, 2 is the rotor of the reluctance motor, 3 is the winding of the reluctance motor, and 4 is Radial stator, 5 is radial rotor, 6 is conical stator, 7 is conical rotor, 8 is bias winding, 9 is radial suspension winding, 10 is axial suspension winding, 11 is shaft, 12 is 12 / 8-pole switched reluctance motor, 13 is radial magnetic bearing I, 14 is conical magnetic bearing I, 15 is radial magnetic bearing II, 16 is conical magnetic bearing II, 17, 18, 19 are x, y, The positive direction of the coordinate axis in ...

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Abstract

The invention discloses a hybrid radial conical magnetic bearing switch reluctance machine and a control method. The machine comprises a switch reluctance machine, two radial magnetic bearings and two conical magnetic bearings, wherein one of the radial magnetic bearings and one of the conical magnetic bearings are arranged at one side of the switch reluctance machine, the other two bearings are arranged at the other side of the switch reluctance machine, bias windings of four magnetic bearings are connected in series with a winding of the switch reluctance machine to form an m-phase torque winding, torque control is the same as a traditional control mode of the switch reluctance machine, five directional suspension forces are only related to a current of the m-phase torque winding and a current of each directional suspension winding, the suspension forces are decoupled to one another, and the torque and the suspension forces can be in decoupling control. The machine and the control machine are high in integration, a few in control variable and simple in suspension control, and a suspension system power converter is low in cost.

Description

technical field [0001] The invention relates to a hybrid radial tapered magnetic bearing switched reluctance motor and a control method, belonging to the technical field of magnetic levitation switched reluctance motors and their control. Background technique [0002] The magnetic levitation switched reluctance motor not only has the advantages of no friction and no lubrication of the magnetic bearing, but also inherits the high-speed adaptability of the switched reluctance motor and meets the harsh working environment. It has unique characteristics in aerospace, flywheel energy storage and military applications. Advantage. [0003] The magnetic levitation switched reluctance motor is usually composed of a five-degree-of-freedom magnetic bearing and a switched reluctance motor. The traditional permanent magnet bias magnetic bearing requires a large thrust plate, which will cause large eddy current loss and temperature rise; while the traditional cone The shape electric exci...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K16/00H02K1/14H02K1/24H02K3/28H02N15/00H02P25/08
CPCH02K1/14H02K1/24H02K3/28H02K16/00H02N15/00H02P25/08
Inventor 刘泽远蔡骏杨艳刘程子曹鑫邓智泉
Owner NANJING UNIV OF POSTS & TELECOMM
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