TY - JOUR
T1 - Active disturbance rejection approach for robust fault-tolerant control via observer assisted sliding mode control
AU - Cortés-Romero, John
AU - Rojas-Cubides, Harvey
AU - Coral-Enriquez, Horacio
AU - Sira-Ramírez, Hebertt
AU - Luviano-Juárez, Alberto
PY - 2013
Y1 - 2013
N2 - This work proposes an active disturbance rejection approach for the establishment of a sliding mode control strategy in fault-tolerant operations. The core of the proposed active disturbance rejection assistance is a Generalized Proportional Integral (GPI) observer which is in charge of the active estimation of lumped nonlinear endogenous and exogenous disturbance inputs related to the creation of local sliding regimes with limited control authority. Possibilities are explored for the GPI observer assisted sliding mode control in fault-tolerant schemes. Convincing improvements are presented with respect to classical sliding mode control strategies. As a collateral advantage, the observer-based control architecture offers the possibility of chattering reduction given that a significant part of the control signal is of the continuous type. The case study considers a classical DC motor control affected by actuator faults, parametric failures, and perturbations. Experimental results and comparisons with other established sliding mode controller design methodologies, which validate the proposed approach, are provided.
AB - This work proposes an active disturbance rejection approach for the establishment of a sliding mode control strategy in fault-tolerant operations. The core of the proposed active disturbance rejection assistance is a Generalized Proportional Integral (GPI) observer which is in charge of the active estimation of lumped nonlinear endogenous and exogenous disturbance inputs related to the creation of local sliding regimes with limited control authority. Possibilities are explored for the GPI observer assisted sliding mode control in fault-tolerant schemes. Convincing improvements are presented with respect to classical sliding mode control strategies. As a collateral advantage, the observer-based control architecture offers the possibility of chattering reduction given that a significant part of the control signal is of the continuous type. The case study considers a classical DC motor control affected by actuator faults, parametric failures, and perturbations. Experimental results and comparisons with other established sliding mode controller design methodologies, which validate the proposed approach, are provided.
UR - http://www.scopus.com/inward/record.url?scp=84893822995&partnerID=8YFLogxK
U2 - 10.1155/2013/609523
DO - 10.1155/2013/609523
M3 - Artículo
SN - 1024-123X
VL - 2013
JO - Mathematical Problems in Engineering
JF - Mathematical Problems in Engineering
M1 - 609523
ER -