Title :
A radial force detection and feedback effects on bearingless motors
Author :
Kiryu, Koji ; Chiba, Akira ; Fukao, Tadashi
Author_Institution :
Dept. of Electr. Eng., Sci. Univ. of Tokyo, Japan
Abstract :
In this paper, radial forces and speeds are detected and used in negative feedback loops to enhance damping factors and response speed in bearingless motors. Radial forces and speeds are calculated from the detected radial force fluxes. Both radial force and torque generating fluxes are detected from search coil fluxes wound around stator teeth. The effectiveness on improving damping of radial positioning is shown both theoretically and experimentally.
Keywords :
damping; feedback; force; induction motor drives; magnetic flux; stators; bearingless motors; damping factors enhancement; feedback effects; negative feedback loops; radial force detection; radial force fluxes; radial positioning damping; response speed enhancement; search coil fluxes; stator teeth; Force feedback;
Conference_Titel :
Industry Applications Conference, 2001. Thirty-Sixth IAS Annual Meeting. Conference Record of the 2001 IEEE
Conference_Location :
Chicago, IL, USA
Print_ISBN :
0-7803-7114-3
DOI :
10.1109/IAS.2001.955393
