Title :
Decoupling Control of Radial Force in Bearingless Switched Reluctance Motors Based on Inverse System
Author :
Wu, Jianbing ; Sun, Yukun ; Liu, Xianfei ; Zhang, Liang ; Liu, Guohai ; Chen, Jinqian
Author_Institution :
Sch. of Electr. & Inf. Eng., Jiangsu Univ., Zhenjiang
Abstract :
A bearingless switched reluctance motor (BSRM) is a multi variable, nonlinear and high coupling system. So the design of its control is very complicated. Based on basic electromagnetism theory, the paper derived a radial force model of a bearingless switched reluctance motor. Reversibility of the model is proved and inverse system approach is developed to realize the dynamic decoupling of radial force. A nonlinear controller based on inverse system is designed so that the nonlinear, strongly coupled system is decoupled into two linear subsystems. Linear control system techniques are applied to these decoupled linear subsystems to synthesize desired response. To verify the effectiveness of the control scheme, some simulations are carried out and the results are satisfactory
Keywords :
inverse problems; machine control; multivariable systems; nonlinear control systems; reluctance motors; bearingless switched reluctance motors; decoupling control; electromagnetism theory; high coupling system; inverse system; linear control system; multivariable system; nonlinear system; radial force dynamic decoupling; radial force model; Coils; Control system synthesis; Control systems; Couplings; Force control; Magnetic levitation; Reluctance motors; Rotors; Stator windings; Teeth; Bearingless motor; decoupling control; inverse system; switched reluctance motor;
Conference_Titel :
Intelligent Control and Automation, 2006. WCICA 2006. The Sixth World Congress on
Conference_Location :
Dalian
Print_ISBN :
1-4244-0332-4
DOI :
10.1109/WCICA.2006.1712516
