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

A Vibration Torque Suppression Method of Magnetic Suspension Flywheel Based on Synchronous Rotation Coordinate Transformation Algorithm

A technology for synchronously rotating coordinates and vibration suppression, which is applied in mechanical oscillation control, non-electric variable control, control/regulation systems, etc.

Active Publication Date: 2019-08-02
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved in the present invention is to overcome the shortcomings of the existing maglev flywheel vibration torque suppression algorithm, and provide an algorithm that can effectively suppress the vibration torque within the full speed range and ensure system stability. The transformation algorithm suppresses the vibration torque caused by the mass imbalance of the magnetic levitation rotor, and realizes the control effect of effectively suppressing the vibration torque within the full speed range and ensuring the stability of the system

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 Vibration Torque Suppression Method of Magnetic Suspension Flywheel Based on Synchronous Rotation Coordinate Transformation Algorithm
  • A Vibration Torque Suppression Method of Magnetic Suspension Flywheel Based on Synchronous Rotation Coordinate Transformation Algorithm
  • A Vibration Torque Suppression Method of Magnetic Suspension Flywheel Based on Synchronous Rotation Coordinate Transformation Algorithm

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0083] The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0084] The present invention proposes a method for suppressing the vibration torque of a maglev flywheel based on synchronous rotation coordinate transformation. The method is to directly use the same frequency vibration force as the control target and use the constructed electromagnetic force as the input of synchronous rotation coordinate transformation, and directly add the output of coordinate transformation The current loop of the original system constitutes a wave trap, so that the same frequency vibration force can be effectively suppressed in the full speed range under the condition of system stability.

[0085] In order to further illustrate the method proposed by the present invention, the theoretical derivation process of the method of the present invention is given below.

[0086] Step 1, establishing the dynamic model of the maglev flywheel, and ...

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 flywheel vibration moment suppression method based on a synchronous rotation coordinate transformation algorithm, and belongs to the field of magnetic suspension flywheel vibration suppression. The method comprises the steps of: establishing a magnetic suspension flywheel kinetic model; establishing an unbalanced force and an unbalanced moment model based on the model; reconstructing a control system with complex coefficients to simplify the structure of the system and to reduce the orders; introducing the synchronous rotation coordinate transformation by establishing a stationary coordinate system and a rotation coordinate system; and identifying the same-frequency component in the vibration moment using the synchronous rotation coordinate transformation, and taking the obtained same-frequency component as the input of a controller to suppress the same-frequency vibration moment. According to the magnetic suspension flywheel vibration moment suppression method based on the synchronous rotation coordinate transformation algorithm, the vibration moment generated by the mass imbalance of magnetic suspension rotors is suppressed based onthe synchronous rotation coordinate transformation algorithm, thereby achieving the control effect of effectively suppressing the vibration moment under the condition of full speed range and ensuringthe system stability.

Description

technical field [0001] The invention belongs to the field of magnetically suspended flywheel vibration suppression, in particular to a method for suppressing unbalanced vibration moments based on synchronous rotation coordinate transformation. Background technique [0002] Magnetic bearings support the rotor without friction, which makes magnetic bearings a perfect replacement for existing mechanical bearings. However, due to the limitation of the manufacturing process level, the rotor still has mass imbalance, which leads to the misalignment of its main axis of inertia and geometrical main axis. This will generate corresponding unbalanced vibration, and the vibration force generated by the magnetic bearing will have a great influence on the stability of the magnetic levitation flywheel system. Usually, the purpose of the magnetic suspension bearing control system is to control a rotor with 5 degrees of freedom. Generally, the magnetic suspension rotor has two main forms, e...

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): G05D19/02
CPCG05D19/02
Inventor 彭聪周乾
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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