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A conical magnetic levitation switched reluctance motor and its control method

A technology of switched reluctance motor and reluctance motor, used in motor generator control, electronic commutation motor control, control system and other directions, can solve the problems of unfavorable system simplification and reliability, low integration, large eddy current loss and temperature upgrade problem

Active Publication Date: 2019-04-12
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 magnetic bearing requires a large thrust plate, which will cause large eddy current loss and temperature rise; while the traditional conical electric excitation magnetic bearing There are more control objects, 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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  • A conical magnetic levitation switched reluctance motor and its control method
  • A conical magnetic levitation switched reluctance motor and its control method
  • A conical magnetic levitation switched reluctance motor and its control method

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Embodiment Construction

[0067] Below in conjunction with the accompanying drawings, the technical scheme of a conical magnetic levitation switched reluctance motor and its control method of the present invention will be described in detail:

[0068] like figure 1 Shown is the three-dimensional structure schematic diagram of embodiment 1 of the conical magnetic levitation 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 the conical stator, 5 is a conical rotor, 6 is a bias winding, 7 is a radial levitation winding, 8 is an axial levitation winding, 9 is a rotating shaft, 10 is a 12 / 8-pole switched reluctance motor winding, 11 is a conical magnetic bearing I, 12 is the tapered magnetic bearing II, and 13, 14, and 15 are the positive directions of the coordinate axes in the x, y, and z directions, respectively.

[0069] The conical magnetic levitation switched ...

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Abstract

The invention discloses a conical magnetic suspension switch reluctance motor and a control method. The motor consists of a switch reluctance motor and two conical magnetic bearings; bias windings of the two conical magnetic bearings are connected with a winding of the switch reluctance motor in series to form a three-phase torque winding; two radial suspension windings of each conical magnetic bearing control suspension of two degrees of freedom, so that four radial degrees of freedom is formed and decoupling control can be realized; the axial suspension windings of the two conical magnetic bearings are connected together in series to form one axial suspension winding to control axial suspension; the motor can independently control torque winding current and turn-on and turn-off angles of the power circuit, and can control rotary speed and torque in real time; current of five suspension windings is controlled, suspension force in five directions can be adjusted in real time, and suspension of five degrees of freedom can be further realized; and the motor and the control method disclosed by the invention are high in integration degree, less in control variables and simple in suspension control, and the power converter of the suspension system is low in cost.

Description

technical field [0001] The invention relates to a conical magnetic levitation switched reluctance motor and a control method thereof, 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 magnetic bearing requires a large thrust plate, which will cause large eddy current loss and temperature rise; while the traditional conical electric excitation magnetic bearing There ar...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K16/00H02K7/09H02K3/28H02P21/20
CPCH02K3/28H02K7/09H02K16/00
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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