Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Magnetic suspension bearing system and control method thereof

A magnetic levitation bearing and control method technology, applied to magnetic bearings, bearings, shafts and bearings, etc., can solve difficult and impractical problems, and achieve the effects of avoiding dead time, improving precision, and reducing errors

Active Publication Date: 2020-11-06
SUZHOU INDAL PARK INST OF SERVICES OUTSOURCING
View PDF14 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It can be seen that no matter which method is used, it is impractical or difficult to find the balance point of the bearing by applying external force
[0009] In short, the radial magnetic suspension bearings assembled in the differential form in the prior art still have deficiencies in precision, response speed and anti-interference, and urgently need to be optimized and improved.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Magnetic suspension bearing system and control method thereof
  • Magnetic suspension bearing system and control method thereof
  • Magnetic suspension bearing system and control method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0057] The present invention will be further described below through specific embodiments.

[0058] refer to Figure 1 to Figure 3 , a magnetic suspension bearing system of the present invention is assembled in a differential form, and includes a rotor 1, a ball bearing 2, a DSP controller, an inverter 3 communicating with the DSP controller, a two-position PID controller 4, and two PI The current controller 5, the IGBT is electrically connected between the PI current controller 5 and the inverter. On the radial plane of the rotor 1, take the center of the rotor as the origin, construct the X-Y coordinate system along the horizontal and vertical directions respectively, and rotate the X-Y coordinate system by 45° to construct the A-B coordinate system, and set symmetrically on the X and Y axes for measurement Two offset sensors 6 for the offset of the rotor 1 on the X and Y axes are respectively symmetrically provided with two electromagnets 7 on the A and B axes; the electro...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a magnetic suspension bearing control system and a control method thereof. The magnetic suspension bearing system comprises a rotor and a controller; an X-Y coordinate systemis rotated by a certain angle to construct an A-B coordinate system, offset sensors are arranged on the X axis and the Y axis, electromagnets are arranged on the A axis and the B axis, offset coils are arranged at the outer ends of the electromagnets, and control coils are arranged at the inner ends of the electromagnets. According to the control method of the magnetic suspension bearing system, the A-B coordinate system is used, an electromagnetic force calculation mathematical model with the coordinate origin not being the magnetic center is adopted to calculate the control current, errors can be reduced, and the external interference resistance of the system is enhanced; the electromagnetic force can be accurately calculated, the control current required for outputting the specified electromagnetic force can be calculated, and the bearing rotor can be accurately suspended at any specified position; and design parameters are optimized through an optimization algorithm according to experimental data, the error of the target control force can be controlled within 10N, and the precision, the reaction speed and the external interference resistance of the system are remarkably improved.

Description

technical field [0001] The invention relates to the technical field of magnetic suspension bearings, in particular to a magnetic suspension bearing system and a control method thereof. Background technique [0002] With the rapid development of modern industry, the requirements for the speed of rotating machinery are getting higher and higher. However, as the speed increases, the traditional rolling bearing will cause serious heat due to high-speed friction between the rotor and the bearing, resulting in easy damage and reliability of the bearing. reduced sex. In the 1960s, some developed countries began to study active magnetic suspension bearing technology. Magnetic suspension bearing is a new type of bearing that uses electromagnetic force to suspend the rotor in the air, thereby realizing non-contact support. Due to the advantages of high speed, no friction, no mechanical loss, and low power consumption, magnetic suspension bearings are more and more widely used in ind...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): F16C32/04
CPCF16C32/0451F16C32/0453F16C32/0455F16C32/048
Inventor 郁春江沈百荣
Owner SUZHOU INDAL PARK INST OF SERVICES OUTSOURCING
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com