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

A self-balancing maglev rotor system based on same-frequency displacement adaptive filtering

A magnetic levitation rotor and self-adaptive filter technology, applied in self-adaptive control, general control system, control/adjustment system, etc., can solve the problems affecting the accuracy of automatic balance, achieve the effects of offsetting adverse effects, simple algorithm, and improving suppression accuracy

Active Publication Date: 2016-06-29
重庆高孚透平科技有限公司
View PDF2 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is: to overcome the defect that the rotor speed detection error of the existing automatic balancing magnetic levitation rotor system seriously affects the automatic balancing accuracy, and to provide an automatic balancing magnetic levitation rotor system based on the same frequency displacement adaptive filter, which significantly improves the rotor speed. Automatic Balancing Accuracy of Magnetically Suspended Rotors with Errors in Speed ​​Detection

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
  • A self-balancing maglev rotor system based on same-frequency displacement adaptive filtering
  • A self-balancing maglev rotor system based on same-frequency displacement adaptive filtering
  • A self-balancing maglev rotor system based on same-frequency displacement adaptive filtering

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0026] The present invention will be further described below with reference to the drawings and specific embodiments.

[0027] Magnetic suspension rotor such as figure 1 Shown. Π 1 , Π 2 Are the center planes of radial magnetic bearing electromagnets A and B respectively, Π is the center plane of the rotor, the rotor inertial main axis and Π 1 , Π 2 And Π are handed to C respectively 1 , C 2 And C, rotor geometry axis and Π 1 , Π 2 And Π are handed to O 1 , O 2 And O, the line between the stator centers of electromagnet A and B intersects with Π at N. Magnetic suspension rotor center plane Π such as figure 2 Shown. In Π, a fixed coordinate system NXY relative to the inertial space is established with N as the origin, and a rotating coordinate system Oεη rotating with the rotor speed Ω is established with O as the origin. OC, O 1 C 1 , O 2 C 2 The lengths of are l, m, n, the angle between OC and Oε coordinate axis is θ, O 1 C 1 , O 2 C 2 The angles between the projected Π and th...

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 provides a same-frequency displacement self-adaptive filtering automatic balancing magnetic levitation rotor system, which comprises a same-frequency displacement adaptive filter, a feedforward compensator, a controller, a power amplifier, an electromagnet, a rotor and a displacement sensor, wherein the rotor displacement signal is accurately divided into a displacement signal with the same frequency with the rotational speed of the rotor, and a displacement signal not at the same frequency with the rotational speed of the rotor through the same-frequency displacement adaptive filter, with the latter sent to the controller while the same-frequency current rigidity force is ensured to be zero, and the former sent to the feedforward compensator to eliminate the same-frequency displacement rigidity force; and the displacement signal with the same frequency with the rotational speed of the rotor and the displacement signal not at the same frequency with the rotational speed of the rotor are combined to eliminate same-frequency magnetic axis bearing, thereby realizing automatic balancing of the rotor. According to the invention, aiming to the problem that the detection error of rotor rotational speed seriously affects the automatic balancing precision, the same-frequency displacement adaptive filter is adopted to evaluate and track the rotational speed of the rotor, and as a result, the detection precision of the same-frequency displacement signal is obviously improved, and the automatic balancing precision of the magnetic levitation rotor is greatly improved. Therefore, the system provided by the invention is simple, feasible, and particularly a practical magnetic levitation rotor system.

Description

Technical field [0001] The invention belongs to the technical field of magnetic suspension rotors, and specifically relates to an automatic balance magnetic suspension rotor system based on the same frequency displacement adaptive filtering, which is used for high-precision automatic balance of the magnetic suspension rotor, and is especially suitable for high-speed magnetic suspension rotor systems such as magnetic suspension control moment gyroscopes. Background technique [0002] Magnetic suspension bearing is a new type of high-performance bearing that uses a controllable electromagnetic field to stably suspend the rotor at a given position. It has outstanding advantages such as non-contact and active controllable stiffness. It is an ideal support method for high-precision, long-life high-speed rotor systems. [0003] Industrial rotors have residual imbalance and long-term slow change. The centrifugal force of the imbalance during high-speed rotation is one of the most important...

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 Patents(China)
IPC IPC(8): G05B13/04
Inventor 魏彤田双彪赵丽双沈繁呈赵林刘云波
Owner 重庆高孚透平科技有限公司
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