Magnetic bearing compressor, air conditioner and protective air gap value setting method

Abstract

The invention provides a magnetic bearing compressor, an air conditioner and a protective air gap value setting method. The magnetic bearing compressor comprises a rotor, a magnetic bearing, a sensorand a control device. The magnetic bearing is arranged on the rotor in a sleeving manner; the sensor is arranged on the magnetic bearing, and the sensor is used for detecting a distance value betweenthe rotor and the sensor on a preset plane; the control device is used for receiving the distance value, determining the minimum distance value and the maximum distance value between the rotor and themagnetic bearing according to the distance value, acquiring the absolute value of a difference between the minimum distance value and the maximum distance value and acquiring a protective air gap value according to the absolute value and a preset protecting coefficient under a circumstance that the absolute value is smaller than or equal to the preset air gap value. By applying the technical scheme provided by the invention, the magnetic bearing and the rotor can be protected effectively in advance, the accuracy of bearing protection is improved, the response time of bearing control protection under an extreme condition is shortened, and the wear degree of the rotor and the magnetic bearing is reduced, so that the integral service life is prolonged.

Description

technical field [0001] The present invention relates to the technical field of magnetic bearing compressors, in particular to a magnetic bearing compressor, an air conditioner, a method for setting a protective air gap value of a magnetic bearing compressor, and a computer-readable storage medium. Background technique [0002] Generally speaking, magnetic bearing compressors are widely used in air-conditioning systems due to their low noise, low maintenance costs, high operating efficiency, lightweight body, and low starting current. In a magnetic bearing compressor, it includes rotor, stator, magnetic bearing, position sensor, magnetic bearing, bearing controller and other components. The inner diameter of the magnetic bearing is smaller than that of the magnetic bearing, and its function is to prevent the rotor from directly contacting the magnetic bearing and avoid bearing wear , coil short circuit, etc., the gap between the rotor and the magnetic bearing is the motion ai...

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