High Temperature Hybrid Radial Magnetic Bearing Systems Capable of Operating up to 538 deg C (1000 deg F)

摘要

A novel high temperature hybrid radial magnetic bearing capable of operating at 538 deg C (1000 deg F) was developed. High temperature permanent magnets are used to carry the majority of the static rotor weight, instead of a magnetic bearing coil or electromagnets, in the newly designed hybrid magnetic bearing system with a maximum operating temperature of 538 deg C. A novel feature of this high temperature magnetic bearing is its homopolar construction which incorporates state of the art high temperature permanent magnets developed at Electron Energy Corporation (EEC). A second feature is its fault tolerance capability which provides the desired control forces with over one-half of the coils failed.