Displacement determination method and device of magnetic bearing, system, storage medium and processor

Abstract

The invention discloses a displacement determination method and device of a magnetic bearing, a magnetic suspension bearing system, a storage medium and a processor, and the method comprises the steps: constructing a displacement measurement model based on a wavelet neural network, and recording the displacement measurement model as a displacement soft measurement model; under the condition that the current displacement parameter of the magnetic bearing rotor needs to be determined, obtaining the current control current of the magnetic bearing coil; and taking the current control current of the magnetic bearing coil as an input parameter, inputting the input parameter into the displacement soft measurement model, and determining an output parameter of the displacement soft measurement model as a current displacement parameter of the magnetic bearing rotor, thereby realizing determination of the current displacement parameter of the magnetic bearing rotor. According to the scheme, the radial displacement of the magnetic bearing rotor is measured in a soft measurement mode, the falling accident of the magnetic bearing rotor caused by damage of the eddy current sensor when the eddy current sensor is used is avoided, and the suspension safety of the magnetic bearing rotor can be improved.

Description

technical field [0001] The invention belongs to the technical field of magnetic suspension, and in particular relates to a method for determining the displacement of a magnetic bearing (such as a method for determining the displacement of a magnetic bearing of a magnetic bearing system), a device, a magnetic suspension bearing system (that is, a magnetic bearing system), a storage medium and a processor, especially The invention relates to a magnetic suspension bearing displacement soft measurement method, device, magnetic suspension bearing system, storage medium and processor. Background technique [0002] Magnetic suspension bearings use magnetic field force to stably suspend the magnetic bearing rotor in the air. It has the characteristics of no mechanical wear, no lubrication, and no maintenance, and can achieve high-speed operation of the motor. In a related scheme, the magnetic suspension bearing system detects the displacement of the magnetic bearing rotor through a ...

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Problems solved by technology

[0006] The purpose of the present invention is to provide a method and device for determining the displacement of a magnetic bearing, a magnetic suspension bearing system, a storage medium, and a processor, so as to solve the problem of using eddy current sensors when measuring the radial displacement of the magnetic bearing rotor. Damage to the magnetic bearing rotor will cause the problem of a drop accident. By using the soft measurement method to measure the radial displacement of the magnetic bearing rotor, it is possible to avoid the fall accident of the magnetic bearing rotor caused by the damage of the eddy current sensor when the eddy current sensor is used. The effect of improving the suspension safety of the magnetic bearing rotor

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