Title :
State and unknown input estimation in a CSTR using higher-order sliding mode observer
Author :
Osorio, Bertulfo Giraldo ; Castro, Héctor Botero ; Torres, Juan Diego Sánchez
Author_Institution :
Escuela de Mecatronica, Univ. Nac. de Colombia, Medellín, Colombia
Abstract :
The aim of this paper is to design and analyze an observer based on high-order sliding mode to estimate states and unknown inputs in a continuous stirred tank reactor (CSTR). Additionally, the designed HOSM allows to reduce the chattering. The performance of HOSM observer is compared with a 1-order sliding mode observer.
Keywords :
chemical reactors; observers; variable structure systems; CSTR; HOSM observer; continuous stirred tank reactor; high-order sliding mode observer; observer analysis; observer design; state estimation; unknown input estimation; Chemical reactors; Equations; Heating; Mathematical model; Observability; Observers; Robustness; Sliding mode observer; higher-order sliding mode observer; observability; sliding surface;
Conference_Titel :
Robotics Symposium, 2011 IEEE IX Latin American and IEEE Colombian Conference on Automatic Control and Industry Applications (LARC)
Conference_Location :
Bogota
Print_ISBN :
978-1-4577-1689-8
DOI :
10.1109/LARC.2011.6086829
