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A method for suppressing unbalanced vibration of magnetic suspension bearing with active adjustment of suspension position

A magnetic suspension bearing and vibration suppression technology, which is applied to bearings, shafts and bearings, and magnetic attraction or thrust holding devices, etc., can solve problems such as system instability and phase lag, reduce unbalanced vibration, solve errors, and simultaneously Good frequency vibration suppression effect

Active Publication Date: 2022-08-05
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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Problems solved by technology

[0007] Purpose of the invention: The present invention aims at the problem that the control point of the magnetic suspension bearing is inconsistent with the position of the sensor measurement point in the traditional magnetic suspension bearing unbalanced vibration suppression method, which may easily cause phase lag and cause system instability. Method of Unbalanced Vibration of Magnetic Suspension Bearing Rotor System

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  • A method for suppressing unbalanced vibration of magnetic suspension bearing with active adjustment of suspension position
  • A method for suppressing unbalanced vibration of magnetic suspension bearing with active adjustment of suspension position
  • A method for suppressing unbalanced vibration of magnetic suspension bearing with active adjustment of suspension position

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Embodiment Construction

[0044] The following combined with the attached picture, the present invention is further explained.

[0045] like figure 1 It is shown that the technical solution is generally divided into the backward extraction of the separation and control phase of the measurement and control, the reference controller design of the reference position of the suspension of the magnetic suspension shaft to suppress the imbalance and vibration.

[0046] 1. The separation of measurement and control is backward extraction extraction

[0047] 1.1: Because the measurement position of the magnetic suspension bearing sensor is not overlooking the point of the control point of the magnetic suspension bearing control, referred to as the separation of measurement and control), the vibration phase of the rotor of the sensor measurement is behind the phase of the rotor vibration of the rotor at the action of the magnetic suspension bearings, which brings errors to the system. Therefore, this phase error info...

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Abstract

The invention discloses a method for suppressing the unbalanced vibration of a magnetic suspension bearing by actively adjusting the suspension position. controller; calculates a new suspension reference position to suppress unbalanced vibrations. The method for suppressing the unbalanced vibration of the magnetic suspension bearing by actively adjusting the suspension position of the present invention can reduce the unbalanced vibration of the magnetic suspension rotor system, solves the error caused by the magnetic suspension bearing measurement sensor and the magnetic suspension bearing control point not being in the same position, and has the advantages of intuitive and easy-to-use It has the advantages of better suppression of vibration at the same frequency.

Description

Technical field [0001] The patent of the present invention disclosed a method of unbalanced vibration suppression method based on the magnetic suspension bearings based on the adjustment of the suspension reference position, which belongs to the field of magnetic suspension floating bearing technology. Background technique [0002] Rotating machinery is one of the key equipment in the national basic industry. It plays core equipment roles in many key areas such as power and energy, aviation, transportation, petrochemical, metallurgy, military production, and spatial technology. With the increasing development of science and technology, the industrial world's performance indicators in various aspects of rotating machinery in rotating machinery have continued to improve in various aspects such as speed, stability, energy consumption, and life cycle. Essence [0003] The magnetic suspension bearing uses the controllable magnetic field to suspend the rotor in a specific balance posit...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16C32/04H02N15/00
CPCF16C32/0442F16C32/0474F16C32/0446F16C32/0451H02N15/00
Inventor 徐园平张越周瑾关旭东金超武
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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