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Power magnetic bearings is proposed in recent years , a new type of drive unit , is the product of a high-tech frontier . With no friction , no wear , no lubrication , no pollution , and long service life , etc. , applicable to a variety of high - speed ultra-high-speed , vacuum and other special occasion . Has broad application prospects in various fields of military , space , nuclear industry , energy , chemical , transportation and other important scientific significance . In this paper, the mechanism of power magnetic bearing theoretical studies , experimental studies and dynamic magnetic bearing suspended . The main work is as follows : First, starting from the angle of electromechanical energy conversion , the introduction of dynamic magnetic bearing magnetic energy and electromagnetic torque and radial suspension force relationship . Thus the specific analysis and computational power magnetic bearing magnetic field magnetic induction , magnetic energy , torque and radial force , initially obtained the equivalent circuit of the power magnetic bearing . Secondly, power magnetic bearing control system was designed from the theoretical point of view , come to some basic control equation and system model is a computer simulation , a better theoretical results . The article pointed out that the use of a common form of motor winding both to generate torque , and also be able to produce a suspension radial force . Finally, the proposed power magnetic bearing the DC suspensions experimental program , simple structure parameters , the design and manufacture of the mechanical structure of the experimental . Built experiment platform , debug experiments circuit . Experimental results show that the suspension test for the able manner in the motor winding rotor , thus proving the feasibility of the motor winding power magnetic bearing exchange control experiments , and to lay the foundation for future in-depth research .
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