Optimal sliding mode flight control

Abstract

This paper presents an optimal sliding mode control design method for a nonlinear system with a "cascade" or two-loop structure. The outer loop is designed using a State Dependent Riccati Equation optimal controller. This outer loop controller generates an optimal sliding surface which is followed by a sliding mode controller in the inner loop. The control design method is demonstrated on a nonlinear model of an F-16 aircraft. Simulation results show excellent command tracking and robustness, with substantial errors in aerodynamic coefficients having little effect on command tracking or stability. The results presented in this paper indicate that the combination of an SDRE controller in the outer loop and a sliding mode controller in the inner loop has a great deal of promise for nonlinear robust control.

Robust optimal sliding mode control for spacecraft position and attitude maneuvers

“…Practical implementation of control strategies based on OSMC have been proposed in several past works e.g. spacecraft [32], missile [33] and aircraft [34]. Pukdeboon and Zinober [35], [36] have developed robust optimal control laws based on the OSMC technique for attitude tracking of spacecraft.…”

Sliding Mode Control for NSVs with Input Constraint Using Neural Network and Disturbance Observer

“…For the nonlinear systems, many robust control schemes were studied [13][14][15][16][17][18] in which SMC is an effective method. By applying a discontinuous control signal to change the system state, the system is forced to slide along a predesigned sliding mode.…”