AC-DC radial-axial mixed magnetic bearing having three degrees of freedom and method for controlling the same
An axial hybrid, AC and DC technology, applied in the direction of shafts and bearings, bearings, magnetic attraction or thrust holding devices, etc., can solve the problems of no patents and literature, etc., and achieve the effects of simplified control, cost reduction, and length reduction
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[0025] The concrete implementation of the present invention divides following 5 steps:
[0026] 1. Mechanical structure. The three-degree-of-freedom AC-DC radial-axial hybrid magnetic bearing magnetic route provides axial and radial bias fluxes at the same time with a permanent magnet. The permanent magnet material is made of high-performance rare earth material NdFeB, which is divided into 6 pieces, which is convenient for permanent magnets. processing, and then spliced into a full circular ring-shaped permanent magnet; the axial control magnetic flux is generated by the axial control coil passing through the axial control direct current, and the number of ampere turns of the coil should be determined according to the actual load capacity required; The control magnetic flux is generated by passing three-phase alternating current through the radial three-phase coil. According to the requirements of the magnetic circuit, construct the overall mechanical structure and parts s...
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