Adaptive Control of Aeroelastic Systems: an Immersion and Invariance Approach
نویسندگان
چکیده
The active suppression of aeroelastic limit cycle flutter oscillations is the main goal of this work. Because of the significant dependence of such outcomes upon flight conditions, an adaptive controller is selected. The related task is accomplished through a full state Immersion and Invariance feedback, embodying linear filters to simplify its design. A practical implementation is then obtained through a sliding mode observer reconstructing the required full state. The effect of different fidelities in the representation of the aerodynamic system will be verified for the classical test case of a typical section in transonic regime.
منابع مشابه
Non-Certainty-Equivalent Adaptive Control of a Nonlinear Aeroelastic System
The development of a non-certainty-equivalent adaptive control system for the control of a nonlinear aeroelastic system is the subject of this paper. The prototypical aeroelastic wing section considered here includes structural nonlinearity and a single control surface for the purpose of control. Its dynamical model has two-degree-of-freedom and describes the plunge and pitch motion. It is assu...
متن کاملImmersion and invariance adaptive control of linear multivariable systems
We show in this paper that it is possible to globally adaptively stabilize linear multivariable systems with reduced prior knowledge of the high-frequency gain. In particular, we relax the restrictive (nongeneric) symmetry condition usually required to solve this problem. Instrumental for the establishment of our result is the use of the new immersion and invariance approach to adaptive control...
متن کاملA robust engineering approach for wind turbine blade profile aeroelastic computation
Wind turbines are important devices that extract clean energy from wind flow. The efficiency of wind turbines should be examined under various working conditions in order to estimate off-design performance. Numerous aerodynamic and structural research works have been carried out to compute aeroelastic effects on wind turbines. Most of them suffer from either the simplicity of the modelling ...
متن کاملA robust engineering approach for wind turbine blade profile aeroelastic computation
Wind turbines are important devices that extract clean energy from wind flow. The efficiency of wind turbines should be examined under various working conditions in order to estimate off-design performance. Numerous aerodynamic and structural research works have been carried out to compute aeroelastic effects on wind turbines. Most of them suffer from either the simplicity of the modelling appr...
متن کاملImmersion and invariance: a new tool for stabilization and adaptive control of nonlinear systems
A new method to design asymptotically stabilizing and adaptive control laws for nonlinear systems is presented. The method relies upon the notions of system immersion and manifold invariance and, in principle, does not require the knowledge of a (control) Lyapunov function. The construction of the stabilizing control laws resembles the procedure used in nonlinear regulator theory to derive the ...
متن کامل