A Flight Control Strategy Using Robust Dynamic Inversion based on Sliding Mode Control

Dynamic inversion (DI) is a control synthesis technique that steers the system states to track the desired trajectory by cancelling the original dynamics. However, it is impossible to achieve perfect cancellation of the original dynamics in real applications, robustness problem must be considered in designing DI controller. In this paper, robust dynamic inversion (RDI) control strategy based on sliding mode control (SMC) is proposed. Different from the previous works of achieving robustness in DI controller, the proposed RDI controller is designed inherently robust. Moreover, robust observer strategy based on the RDI controller is also proposed in this paper. Numerical simulations with application to the AV-8A Harrier aircraft demonstrate the effectiveness of the proposed method.

[1]  H. Sira-Ramírez.  Differential geometric methods in variable-structure control , 1988 .

[2]  Inseok Yang,et al.  Fault-tolerant control strategy based on control allocation using smart actuators , 2010, 2010 Conference on Control and Fault-Tolerant Systems (SysTol).

[3]  Dan Bugajski,et al.  Dynamic inversion: an evolving methodology for flight control design , 1994 .

[4]  Michael B. McFarland,et al.  ROBUSTNESS OF A NONLINEAR MISSILE AUTOPILOT DESIGNED USING DYNAMIC INVERSION , 2000 .

[5]  Aaron J. Ostroff,et al.  Force and Moment Approach for Achievable Dynamics Using Nonlinear Dynamic Inversion , 1999 .

[6]  R. Decarlo,et al.  Variable structure control of nonlinear multivariable systems: a tutorial , 1988, Proc. IEEE.

[7]  Stanislaw H. Zak,et al.  Combined Observer-Controller Synthesis for Nonlinear/Uncertain Dynamical Systems , 1987, 1987 American Control Conference.

[8]  S. Spurgeon,et al.  On the development of discontinuous observers , 1994 .

[9]  V. Utkin.  Variable structure systems with sliding modes , 1977 .

[10]  Christopher Edwards,et al.  ROBUST OUTPUT TRACKING USING A SLIDING MODE CONTROLLER/OBSERVER SCHEME , 1996 .

[11]  Wayne C. Durham.  Dynamic inversion and model-following control , 1996 .

[12]  Weibing Gao,et al.  Variable structure control of nonlinear systems: a new approach , 1993, IEEE Trans. Ind. Electron..

[13]  Richard J. Adams,et al.  Robust flight control design using dynamic inversion and structured singular value synthesis , 1993, IEEE Trans. Control. Syst. Technol..

[14]  John Valasek,et al.  Evaluation of Longitudinal Desired Dynamics for Dynamic-Inversion Controlled Generic Reentry Vehicles , 2003 .

[15]  Daigoro Ito,et al.  AIAA 2001-4380 Robust Dynamic Inversion Controller Design and Analysis for the X-38 , 2001 .

[16]  Stanislaw H. Zak,et al.  Combined observer-controller synthesis for uncertain dynamical systems with applications , 1988, IEEE Trans. Syst. Man Cybern..