Fuzzy Non-fragile H Tracking Control for Flexible Air-breathing Hypersonic Vehicles

https://doi.org/10.3182/20120403-3-DE-3010.00062Get rights and content

Abstract

This paper proposed a fuzzy non-fragile tracking control design method for flexible air-breathing hypersonic vehicles (FAHVs). The T-S fuzzy set approach is applied to the modeling of the complex nonlinear dynamics of FAHVs, and a T-S fuzzy model is constructed, which can represent the nonlinear hypersonic vehicle system. Then, by considering the actuator controller coefficients uncertainties and disturbances, the fuzzy non-fragile H tracking problem for FAHVs is proposed. A state-feedback controller design method is proposed to guarantee the tracking performance in the presence of actuator controller coefficients uncertainties. By a Lyapunov approach, the existence conditions for such a controller are established in terms of linear matrix inequalities (LMIs). An illustrative example is given to show the excellent tracking performance of the proposed controller design method.

Keywords

Flexible air-breathing hypersonic flight vehicles (FAHVs)
nonlinear dynamic system
Takagi-Sugeno (T-S) fuzzy modeling
non-fragile control

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This work was partially supported by National Natural Science Foundation of China (61174126, 90916005, 61025014 & 60736026), Aviation Science Fund of China (2009ZA77001), and National Natural Science Foundation of Heilongjiang Province of China (F201002).

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