Analysis and Testing of Magnetic Bearing with Permanent Magnets for Bias

概要

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Active magnetic bearings constructed with electromagnets only are usually bulky and power-consuming. This shortcoming can be remedied by adopting permanent magnets as the source of bias flux. Satisfactory results achieved by using rare-earth permanent magnets substantiate the feasibility of using permanent magnet bias in magnetic bearings. In this paper, an analytic model for permanent-magnet-biased magnetic bearings is presented. The static characteristics of a prototype are tested and compared with values estimated using this model. Manufacturing the prototype and subsequent testing offer some technological information which is important for future improvements.
一般社団法人日本機械学会の論文
1994-12-15