A disk-type bearingless motor for use as satellite momentum-reaction wheel
2002 IEEE 33rd Annual IEEE Power Electronics Specialists Conference. Proceedings (Cat. No.02CH37289) - Tập 4 - Trang 1971-1975 vol.4
Tóm tắt
This paper describes the development of disk-type bearingless motor for application as a satellite momentum/reaction wheel. It does not rely on mechanical bearings, so does not require lubrication and can be expected to have longer maintenance-free lifespan that is important in space applications. The proposed motor has a shaft-less disk-type rotor sandwiched between two disk-type stators and has the capability of both rotation and levitation control. The rotor is also the flywheel of the system. The desired degree of freedom (DOF) of rotation about z-axis motion is actively controlled while the other 5 DOFs are restricted actively or passively. Moreover, it has higher energy per weight and is smaller than the structure of a conventional motor levitated by shaft-based magnetic bearings and therefore is more suitable for space application where the space and weight are of much concern. Three-dimensional finite element simulation results are presented to support the proposition.
Từ khóa
#Satellites #Rotors #Magnetic levitation #Wheels #Mechanical bearings #Lubrication #Stators #Flywheels #Motion control #Finite element methodsTài liệu tham khảo
10.1109/20.800752
10.1109/28.491485
10.1109/PCCON.1997.638267
10.1109/87.531922
fujie, 2000, A decoupling control method of buried permanent magnet bearingless motors, Proceedings of International Power Electronics Conference, 395
10.1109/3516.868923
10.1109/87.531922
10.1109/60.282477
10.1109/IAS.1993.298929
10.1109/28.536884
10.1109/INTMAG.1998.742238
10.1109/28.605733
10.1109/PCCON.1993.264144
10.1109/PESC.1998.701874
10.1109/41.491353