Vibration Force Suppression Method and System for Magnetic Suspension Rotor Based on Repeated Controller and Compensation
A technology of magnetic suspension rotor and repetitive controller, applied in general control system, control/regulation system, adaptive control and other directions, can solve the problems of the same frequency and double frequency vibration force of unbalanced displacement sensor, and can not suppress the mass at the same time, and achieves The effect of suppressing the same frequency and double frequency vibration force, accurate phase compensation, and increasing the stability margin
Active Publication Date: 2021-09-03
SUN YAT SEN UNIV SHENZHEN +1
View PDF5 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0004] The present invention provides a method and system for suppressing the vibration force of a magnetic levitation rotor based on repetitive controllers and compensation, which is used to overcome the defects in the prior art that cannot simultaneously suppress mass imbalance and the same-frequency and double-frequency vibration forces generated by displacement sensors.
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 moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0025] In addition, the technical solutions of the various embodiments of the present invention can be combined with each other, but it must be based on the realization of those skilled in the art. When the combination of technical solutions is contradictory or cannot be realized, it should be considered as a combination of technical solutions. Does not exist, nor is it within the scope of protection required by the present invention.
[0026] The pre...
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
Login to View More Abstract
The invention discloses a method and system for suppressing the vibration force of a magnetically suspended rotor based on a repetitive controller and compensation. First, the repetitive controller is used to suppress the error interference introduced by the mass imbalance and sensor interference, and then the same frequency phase shift notch is used to suppress the vibration force. The displacement stiffness force introduced by the suppression is compensated, thereby realizing the suppression of the full-frequency vibration force of the magnetic levitation flywheel. Compared with the existing method, the present invention adopts the fractional delay link to improve the suppression accuracy of the vibration force when sampling non-integer periods, and adopts the fractional phase compensation link to make the phase compensation in the high-frequency stage more accurate and increase the stability margin in the high-frequency stage At the same time, the variable coefficient phase shift notch filter is used to compensate the system phase angle to realize the full frequency stability of the system. The method provided by the invention can suppress the mass imbalance and the same frequency and double frequency vibration force generated by the displacement sensor at the same time with high precision. .
Description
technical field [0001] The invention relates to the technical field of vibration control of a magnetic suspension rotor, in particular to a vibration force suppression method and system for a magnetic suspension rotor based on a repetitive controller and compensation. Background technique [0002] Because of its non-contact and non-lubricating properties, the magnetic levitation rotor system has attracted more and more attention in aerospace applications, especially in flywheels for satellite attitude control power components, especially because it can perform active vibration control. In the application process of the maglev rotor system, the vibration control of the maglev flywheel rotor is a very important task. The rotor of the maglev flywheel will have mass imbalance due to processing errors and uneven materials. The mass imbalance will cause the rotor to rotate actively at high speed. When a large unbalanced force is generated, although the rotor can be dynamically bal...
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
Login to View More Patent Type & AuthorityPatents(China)
IPC IPC(8): G05B13/04
CPCG05B13/042
Inventor刘昆曾塬魏静波王昊泽
OwnerSUN YAT SEN UNIV SHENZHEN