Magnetic suspension bearing control device, magnetic suspension bearing and control method thereof

Abstract

The invention discloses a magnetic suspension bearing control device, a magnetic suspension bearing and a control method thereof. The device comprises a displacement feedback module (5) and a trappedwave unbalance vibration controller (4), wherein the displacement feedback module (5) is used for acquiring displacement information of a magnetic suspension rotating shaft (3) of the magnetic suspension bearing; the displacement information comprises rotary displacement information of rotation around a geometric center of a magnetic suspension rotating shaft (3) and unbalance displacement information of rotation around the centroid of the magnetic suspension rotating shaft (3); and the trapped wave unbalance vibration controller (4) is used for compensating the unbalance displacement information in the displacement information to obtain effective displacement information. By the scheme, the shortcomings of large unbalance disturbance, high control difficulty, poor running stability and the like in the prior art can be overcome, and beneficial effects of low unbalance disturbance, low control difficulty and good running stability are achieved.

Description

technical field [0001] The invention belongs to the technical field of magnetic suspension, and in particular relates to a control device of a magnetic suspension bearing, a magnetic suspension bearing and a control method thereof, in particular to a control device for unbalanced vibration of a magnetic suspension bearing, a magnetic suspension bearing with the device, and an unbalance of the magnetic suspension bearing Vibration Control Methods. Background technique [0002] The magnetic levitation technology is currently developing rapidly. The magnetic levitation shaft runs in an environment without mechanical contact, so it can easily achieve high-speed and ultra-high-speed rotation. figure 1 The illustration is completely coincident. In this ideal situation, when the magnetic levitation shaft is rotating, it always rotates symmetrically with the geometric center as the origin. In this rotating state, the control of the shaft is undoubtedly an extremely ideal state. How...

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to, aiming at the above-mentioned defects, provide a control device for magnetic suspension bearings, magnetic suspension bearings and control methods thereof, to solve the problem in the prior art that the unbalanced rotor causes large unbalance disturbances of magnetic suspension bearings, and achieve unbalanced disturbances small effect

Images