Reliable piecewise control design for systems with actuator saturation and fault

Sung Hyun Kim

International Journal of Systems Science, 2015, vol. 46, issue 3, 385-393

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.

Date: 2015
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DOI: 10.1080/00207721.2013.783950

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