Title :
A novel magnetic suspension force compensation in a bearingless induction motor with a squirrel cage rotor
Author :
Hiromi, Taishi ; Katou, Tatsuya ; Chiba, Akira ; Rahman, M. Azizur ; Fukao, Tadashi
Author_Institution :
Dept. of Electr. Eng., Tokyo Univ. of Sci., Chiba, Japan
Abstract :
This paper presents an improved analysis of magnetic force compensation in a bearingless induction motor with a squirrel cage rotor. The expressions for rotor flux linkage are derived. Simulation blocks of suspension force are constructed. A novel control system, which compensates the delay and direction error in suspension force generation for a squirrel cage rotor is proposed. The efficacy of the proposed control system is established by both simulation and experiment.
Keywords :
delays; machine control; magnetic forces; rotors; squirrel cage motors; bearingless induction motor; delay compensation; direction error; magnetic suspension force compensation; rotor flux linkage; squirrel cage rotor; Control systems; Couplings; Delay; Error correction; Force control; Induction motors; Magnetic analysis; Magnetic forces; Magnetic levitation; Rotors;
Conference_Titel :
Industry Applications Conference, 2005. Fourtieth IAS Annual Meeting. Conference Record of the 2005
Print_ISBN :
0-7803-9208-6
DOI :
10.1109/IAS.2005.1518653
