Flight control design with actuator saturation - SISO systems with unstable plants

1995 ◽  
Author(s):  
R Hess ◽  
S Snell
Keyword(s):  
Flight Control ◽  
Actuator Saturation ◽  
Control Design ◽  
Siso Systems

scholarly journals GPC-Based Stable Reconfigurable Control

2003 ◽  
Author(s):  
Jianjun Shi ◽  
Atul G. Kelkar ◽  
Donald Soloway
Keyword(s):  
State Space ◽  
Predictive Control ◽  
Flight Control ◽  
Actuator Saturation ◽  
Control Design ◽  
Generalized Predictive Control ◽  
Control Law ◽  
Reconfigurable Control ◽  
Space Formulation ◽  
The Stability

This paper presents development of multi-input multi-output (MIMO) Generalized Predictive Control (GPC) law and its application to reconfigurable control design in the event of actuator saturation. The stability of the GPC control law without reconfiguration is first established using Riccati-based approach and state-space formulation. A novel reconfiguration strategy is developed for the systems which have actuator redundancy and are faced with actuator saturation type failure. An elegant reconfigurable control design is presented with stability proof. A numerical example with application to reconfigurable flight control is presented to demonstrate the results presented in the paper.

Stable Reconfigurable Generalized Predictive Control With Application to Flight Control

2005 ◽  
Vol 128 (2) ◽  
pp. 371-378 ◽  
Author(s):  
Jianjun Shi ◽  
Atul G. Kelkar ◽  
Don Soloway
Keyword(s):  
Predictive Control ◽  
Flight Control ◽  
Actuator Saturation ◽  
Synthesis Method ◽  
Control Design ◽  
Generalized Predictive Control ◽  
Reconfigurable Control ◽  
Weighting Matrix ◽  
End Point ◽  
Short Period

This paper presents the development of a multiinput multioutput generalized predictive control (GPC) law and its application to reconfigurable control design in the event of actuator saturation. The stability of the GPC control law without reconfiguration is first established using an end-point state weighting. Based on the constrained nonlinear optimization, an end-point state weighting matrix synthesis method is derived. A novel reconfiguration strategy is developed for systems that have actuator redundancy and are faced with actuator saturation type failure. An elegant reconfigurable control design is presented with stability proof. A numerical simulation using a short-period approximation model of a civil transport aircraft is presented to demonstrate the reconfigurable control architecture.

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