永久磁石とアクチュエータを用いた3自由度平板浮上システム [in Japanese] 3 Degree of Freedom Maglev System with Actuators and Permanent Magnets [in Japanese]
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Magnetic suspension systems with linear actuators and permanent magnets have been developed. The bearing forces are controlled by adjusting the air between permanent magnets and levitated objects. The feature is using permanent magnets. Therefor the systems are effective for reducing energy consumption and heat generation of coils. This paper describes a 3 degrees of freedom disk suspension system. First, the principle of this suspension mechanism is explained on a simple model. Secondly, we introduce the disk suspension system which can suspend a circle plate by 3 permanent magnets and its drive mechanisms. This system is analyzed theoretically from kinematics and linear control theory. Two control methods are proposed. One is a decentralized feedback control system and the other is a centralized one. Feedback gain matrices are calculated on each control system. The performances of two systems are compared by means of numerical simulations and experimental examinations.
- IEEJ Transactions on Sensors and Micromachines
IEEJ Transactions on Sensors and Micromachines 115(3), 294-300, 1995-03
The Institute of Electrical Engineers of Japan