A magnetic suspension bearing controller detection method, system and application
A magnetic levitation bearing and detection method technology, applied in the field of magnetic levitation, can solve problems such as failure to conduct comprehensive detection, and achieve the effect of improving safety and reliability
Active Publication Date: 2020-10-02
GREE ELECTRIC APPLIANCES INC
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Problems solved by technology
[0009] The problem with the above technical solutions is that only one factor affecting the magnetic suspension bearing controller is detected, but a comprehensive detection cannot be carried out
If the abnormal magnetic levitation controller is applied to the magnetic levitation centrifugal chiller, it will cause serious consequences
Method used
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Embodiment 1
[0046] An embodiment of the present invention is a detection system for a magnetic suspension bearing controller. For the structure of the magnetic suspension bearing, see Figure 1 ~ Figure 3 . The magnetic levitation shaft 3 includes a front bearing 1, a rear bearing 2 and a thrust disc 4. The thrust plate 4 is arranged between the first axial bearing 5 and the second axial bearing 6 and is perpendicular to the magnetic levitation shaft 3 . The magnetic suspension bearings are controlled in 5 directions in the x and y directions on the front bearing 1 and the rear bearing 2, and the axial z direction along the axis 3, respectively.
[0047] The magnetic suspension bearing controller detection system consists of a communication module, a parameter setting module, a detection module, a comparison module, a timer module, a display module, and a control module (used to judge the detection results and controlled by the main control chip), such as Figure 4 shown.
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The invention discloses a method and system for detecting a magnetic bearing controller and an application thereof, and belongs to the technical field of magnetic levitation. The method is used for detecting whether the magnetic bearing controller is abnormal and comprises the following steps: communication detection: performing current detection or displacement detection when the communication issuccessful, and determining that the magnetic bearing controller is abnormal when the communication fails; current detection: performing communication detection or displacement detection when the magnetic bearing control current is normal, and determining that the magnetic bearing controller is abnormal when the magnetic bearing control current is abnormal; displacement detection: performing communication detection or current detection when a displacement of the magnetic bearing is normal, and determining that the magnetic bearing controller is abnormal when the displacement of the magnetic bearing is abnormal; and terminating the detection of the magnetic bearing controller when determining that the magnetic bearing controller is abnormal. The method and system for detecting the magneticbearing controller can accurately detect whether the displacement, current, and communication function of the magnetic bearing controller are normal, thereby improving the safety and reliability of the magnetic bearing controller.
Description
technical field [0001] The invention belongs to the technical field of magnetic suspension, and in particular relates to a detection method, system and application of a magnetic suspension bearing controller. Background technique [0002] Magnetic suspension bearings are used in magnetic suspension centrifuge units, which include magnetic suspension compressors, evaporators, frequency converters and main control devices of magnetic suspension centrifuges. The magnetic suspension bearing controller for controlling the magnetic suspension bearing includes outer ring displacement control and inner ring current control. The outer ring detects the change of the displacement signal, and through the control function of the regulator and the current, the bearing control current is generated in the electromagnet coil, thereby generating the electromagnetic control force to realize the stable suspension of the rotating shaft. Therefore, the displacement signal and the current signal ...
Claims
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IPC IPC(8): G05B23/02
CPCG05B23/0213G05B2219/24065
Inventor 李雪赵聪孙建东
Owner GREE ELECTRIC APPLIANCES INC