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Abstract
This paper proposes a reliable piecewise control (RPC) law for input-saturated systems with norm-bounded external disturbances and faults, whose feature is that the following three goals can be simultaneously achieved: improving the disturbance attenuation performance, maximising the region of attraction, and totally removing the influence of the actuator fault. Here, the RPC law is developed to be dependent on several switching sets with the set invariance property, where the size of the most inner switching set is minimised and the size of the outer switching sets is maximised to fulfil the first two goals, respectively. Moreover, for the third goal, this paper introduces a norm-bounded representation method for the actuator fault and incorporates a variable structure control scheme into the RPC law.
Acknowledgements
This work was supported by the 2013 Research Fund of University of Ulsan.
Additional information
Notes on contributors
Sung Hyun Kim
Sung Hyun Kim received his M.S. and Ph.D. degrees in Electrical and Electronic Engineering from Pohang University of Science and Technology, Pohang, Korea, in 2003 and 2008, respectively. Since 2011, he has been affiliated with the Department of Electrical Engineering, University of Ulsan, where he is currently an Assistant Professor. His research interests are in analysis and synthesis of fuzzy control systems, LPV systems, time-delayed systems and receding-horizon control (RHC), networked control systems (NCSs) and radio frequency identification (RFID) tag protocol.