Title :
Robust performance and transient response of the H∞μ DIA control for magnetic suspension systems
Author :
Seto, Hiroki ; Namerikawa, Tom
Author_Institution :
Dept. of Mech. Eng., Nagaoka Univ. of Technol., Nugata, Japan
Abstract :
This paper deals with robust performance and transient response of H∞/μ DIA control for magnetic suspension systems. H∞ DIA control is an H∞ control problem which treats a mixed disturbance and an initial-state uncertainty attenuation (DIA) and supplies H∞ controls with good transients. H∞ DIA controller has a good initial response property, however its robust performance might be improved. We propose H∞/μ DIA control which is to find a multi-objective controller to achieve both the H∞ DIA condition for good initial responses/transient responses and the structured singular value μ condition for robust performance. We apply this proposed approach to magnetic suspension systems, and design a robust controller, which has both good properties. Finally simulation and experimental results show effectiveness of the proposed control system design framework.
Keywords :
H∞ control; control system synthesis; magnetic fluids; robust control; transient response; μ synthesis; H∞ control; initial-state uncertainty attenuation; magnetic suspension system; robust control; transient response; Attenuation; Control systems; Delta modulation; Force control; Magnetic levitation; Magnetic properties; Pensions; Robust control; Transient response; Uncertainty;
Conference_Titel :
Control Applications, 2004. Proceedings of the 2004 IEEE International Conference on
Print_ISBN :
0-7803-8633-7
DOI :
10.1109/CCA.2004.1387505
