Robust input-output linearisation for an LPV model of ADMIRE
- Resource Type
- Conference
- Authors
- Norton, Peter; Prempain, Emmanuel
- Source
- The SICE Annual Conference 2013 SICE Annual Conference (SICE), 2013 Proceedings of. :685-690 Sep, 2013
- Subject
- Aerospace
Bioengineering
Communication, Networking and Broadcast Technologies
Components, Circuits, Devices and Systems
Computing and Processing
Engineered Materials, Dielectrics and Plasmas
Engineering Profession
Fields, Waves and Electromagnetics
General Topics for Engineers
Geoscience
Nuclear Engineering
Photonics and Electrooptics
Power, Energy and Industry Applications
Robotics and Control Systems
Signal Processing and Analysis
Transportation
Uncertainty
Aerodynamics
Actuators
Robust stability
Sensors
Computational modeling
Robustness
Dynamic inversion
Feedback linearization
Robust control
Uncertain systems
Time-varying systems
Aerospace control
Aircraft
Linear fractional transformation
Linear matrix inequalities
- Language
A pitch rate controller is designed for a linear parameter-varying (LPV) model of the short-period longitudinal dynamics of ADMIRE, using input-output linearisation. A scaled linear differential inclusion (LDI) technique is applied to verify stability of the parameter-varying zero-dynamics. The parameters (Mach and altitude) are allowed to be time-varying. The proposed controller is simulated in the nonlinear model of ADMIRE and on the LPV model, with sensors, actuators and time-varying uncertainties on the polynomial surface fits. A robust performance LMI condition is used to verify an upper bound on the L2 gain of the full-order closed loop system, subject to time-varying parametric uncertainty. This uses a linear fractional transformation (LFT) representation of the closed loop with block-diagonal structured uncertainty.