Magnetic bearing control device and magnetic bearing system
A magnetic levitation bearing and control device technology, applied in the field of magnetic levitation, can solve the problems of large amount of calculation in the control process, multi-calculation time, complex structure, etc., and achieve the effects of reducing the calculation time, improving real-time performance, and reducing the amount of calculation
Active Publication Date: 2016-02-17
GREE ELECTRIC APPLIANCES INC +1
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However, the structure of the existing magnetic suspension bearing control device is relatively complicated, and the calculation amount of the control process is relatively large, which in turn takes up a lot of calculation time
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[0037] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0038] As mentioned in the background art, magnetic bearings, also known as magnetic bearings, are currently one of the world's recognized high-tech, and its technology involves many disciplines such as mechanics, electromagnetism, electronics, materials science, dynamics, and computer science. Magnetic suspension bearings use electromagnetic force to suspend the rotor. Due to its characteristics of no friction, long life, high speed, high precision, low noise,...
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The invention discloses a magnetic bearing control device and a magnetic bearing system. The magnetic bearing control device comprises a displacement adjustment system, a difference system and a current adjuster. The displacement adjustment system collects the deviation displacement of a deviation preset position of a rotor and converts the deviation displacement into a deviation current value. The difference system carries out differential treatment on the current values of a first bearing coil and a second bearing coil at present to obtain a differential current value. The current adjuster caries out subtraction on the deviation current value and the differential current value to obtain an adjustment current value, converts the adjustment current value into an adjustment duty ratio, and adjusts the respective current duty ratios of a first power amplifier and a second power amplifier according to the adjustment duty ratio to control the first bearing coil and the second bearing coil to adjust the rotor to the preset position. The magnetic bearing control device is simple in structure, the control algorithm is simplified by means of the control process of the control device, and the control instantaneity is improved.
Description
technical field [0001] The invention relates to the technical field of magnetic suspension, and more specifically, relates to a magnetic suspension bearing control device and a magnetic suspension bearing system. Background technique [0002] Magnetic suspension bearing, also known as magnetic bearing, is one of the recognized high-tech in the world, and its technology involves mechanics, electromagnetism, electronics, materials science, dynamics, computer science and many other disciplines. Magnetic suspension bearings use electromagnetic force to suspend the rotor. Due to its characteristics of no friction, long life, high speed, high precision, low noise, and no need for lubrication, it has obvious advantages compared with traditional bearings in many application fields. One of the most promising leading bearings in the century. However, the structure of the existing magnetic suspension bearing control device is relatively complex, and the control process has a large amo...
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Inventor 胡余生郭伟林贺永玲胡叨福李雪
Owner GREE ELECTRIC APPLIANCES INC