On the strong observability in linear time-varying singular systems
Por:
Hernandez, Debbie, Bejarano F.J., Davila, Jorge, Fridman, Leonid M.
Publicada:
1 mar 2019
Resumen:
In this article the strong observability conditions, necessary and sufficient conditions originally stated for the state reconstruction of linear systems with unknown inputs, are extended to the class of linear time-varying singular systems. This novel local (in a time interval of interest) conditions are given under a constant rank assumption. A method to reconstruct the state in finite time in linear time-varying singular systems despite the presence of unknown inputs is presented. The proposed observer consists of two parts, one part that ensures the asymptotic convergence of the estimation errors to a bounded region around the origin and another one that ensures the finite-time convergence of the state estimates to their actual values. © 2018 Elsevier Ltd
Filiaciones:
Hernandez, Debbie:
Departamento de Ingeniería de Control y Robótica, División de Ingeniería Eléctrica, Facultad de Ingeniería, UNAM, Mexico
Univ Nacl Autonoma Mexico, Dept Ingn Control & Robot, Div Ingn Elect, Fac Ingn, Mexico City, DF, Mexico
Bejarano F.J.:
Instituto Politécnico Nacional, Sección de Estudios de Posgrado e Investigación, ESIME-UPT, Mexico
Davila, Jorge:
Instituto Politécnico Nacional, Sección de Estudios de Posgrado e Investigación, ESIME-UPT, Mexico
UPT, Inst Politecn Nacl, Secc Estudios Posgrad & Invest, ESIME, Mexico City, DF, Mexico
Fridman, Leonid M.:
Departamento de Ingeniería de Control y Robótica, División de Ingeniería Eléctrica, Facultad de Ingeniería, UNAM, Mexico
Univ Nacl Autonoma Mexico, Dept Ingn Control & Robot, Div Ingn Elect, Fac Ingn, Mexico City, DF, Mexico
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