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Dynamic Modeling Method of Disk Magnetic Suspension Rotor System

A magnetic levitation rotor and system dynamics technology, applied in general control systems, control/regulation systems, instruments, etc., can solve problems such as large model errors

Inactive Publication Date: 2018-12-25
HOHAI UNIV CHANGZHOU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a dynamic modeling method and control method of a disk-shaped magnetic levitation rotor system, which is used to solve the large model error easily caused by the shaft rotor in the dynamic modeling process of the existing magnetic levitation rotor system technical issues

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  • Dynamic Modeling Method of Disk Magnetic Suspension Rotor System
  • Dynamic Modeling Method of Disk Magnetic Suspension Rotor System
  • Dynamic Modeling Method of Disk Magnetic Suspension Rotor System

Examples

Experimental program
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Effect test

Embodiment 1

[0080] Embodiment 1 provides a modeling method for a dynamic model of a disk-shaped magnetic levitation rotor system, including the following steps:

[0081] Step S1, establishing a geometric model of the disk-shaped maglev rotor system according to the stress of the disk-shaped maglev rotor system;

[0082] Step S2, establishing a dynamic model of the disk-shaped magnetic levitation rotor system according to the geometric model.

[0083] Specifically, such as figure 1 As shown in Fig. 2(a), Fig. 2(b) and Fig. 2(c), the disk-shaped maglev rotor system includes: a disk-shaped maglev rotor, three Magnetic Bearing M 1 , M 2 , M 3 and three eddy current displacement sensors S 1 , S 2 , S 3 .

[0084] And, in the step S1, according to the force situation of the disk-shaped magnetic suspension rotor system, the method for establishing the geometric model of the disk-shaped magnetic suspension rotor system includes:

[0085] Step S11, the basic assumption is that the disc-sh...

Embodiment 2

[0151] On the basis of Embodiment 1, this Embodiment 2 also provides an electromechanical coupling dynamic equation system of a magnetic bearing-disc magnetic levitation rotor-basic system, which includes:

[0152] The dynamic equation of the disk-shaped magnetically suspended rotor, the differential equation corresponding to the control system of the disk-shaped magnetically suspended rotor, the differential equation of the power amplifier in the control system, and the differential equation of the eddy current displacement sensor.

[0153] The establishment method of described electromechanical coupling dynamic equations comprises the steps:

[0154] Step S1, establishing a geometric model of the disk-shaped maglev rotor system according to the stress of the disk-shaped maglev rotor system;

[0155] Step S2, establishing a dynamic model of the disk-shaped maglev rotor system according to the geometric model; and

[0156] Step S3, obtaining the electromechanical coupling dyn...

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Abstract

The invention relates to a disk-shaped magnetic suspension rotor system dynamics modeling method and a coupling dynamics equation set. The disk-shaped magnetic suspension rotor system dynamics modeling method includes the following steps that: step S1, the geometric model of a disk-shaped magnetic suspension rotor system is established according to the stressed conditions of the disk-shaped magnetic suspension rotor system; and step S2, the dynamics model of the disk-shaped magnetic suspension rotor system is established according to the geometric model. According to the disk-shaped magnetic suspension rotor system dynamics modeling method and coupling dynamics equation set provided by the invention, in the dynamics model, influence of factors such as the types of a magnetic suspension rotor and the directions of basic movement is considered, and therefore, the accuracy of the disk-shaped magnetic suspension rotor system can be improved.

Description

technical field [0001] The invention relates to a dynamic modeling method and a coupling dynamic equation group of a disk-shaped magnetic levitation rotor system. Background technique [0002] With the development of maglev technology, it has been applied in more and more aspects, such as vehicle flywheel battery, submarine vibration and noise reduction, wind power generation, etc. The foundation of the magnetic bearing used in these occasions is also moving, and the current dynamic model of the magnetic suspension rotor bearing system usually assumes that the bearing seats at both ends are not moving, but in fact the magnetic bearing support (base) and the ground There is usually a non-rigid connection between them, and the motions between them are coupled and interacted with each other, thus forming a bearing-rotor-base coupling system in terms of structure and dynamics. Due to the installation quality of the machine and long-term vibration will cause looseness between th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B13/04
CPCG05B13/042
Inventor 张薇薇姬翠翠顾文斌李保松
Owner HOHAI UNIV CHANGZHOU