Hybrid sliding mode observer for switched linear systems with unknown inputs. - Université Polytechnique des Hauts-de-France Access content directly
Journal Articles Journal of The Franklin Institute Year : 2014

Hybrid sliding mode observer for switched linear systems with unknown inputs.

Abstract

This paper addresses the state observation and unknown input estimation of a class of switched linear systems with unknown inputs. This class of systems may have modes in which the state is not fully observable. A state transformation allows implementing two suitable reduced-order observers. The first one, based on second order sliding mode techniques, is proposed to reconstruct the discrete state in the presence of unknown inputs. The second one, based on gathering partial information from individual modes of the switched system and on higher order sliding mode techniques, is introduced to estimate the continuous state. Then, the observer injection signal of the first second order sliding mode observer is used to estimate the unknown inputs. Simulation results highlight the efficiency of the proposed method.
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Dates and versions

hal-03041203 , version 1 (04-12-2020)

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Jérémy van Gorp, Michael Defoort, Kalyana Chakravarthy Veluvolu, Mohamed Djemai. Hybrid sliding mode observer for switched linear systems with unknown inputs.. Journal of The Franklin Institute, 2014, 351 (7), pp.3987-4008. ⟨10.1016/j.jfranklin.2014.04.002⟩. ⟨hal-03041203⟩
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