基于多滑模调节器切换的机动飞行边界保护控制

doi:10.7527/S1000-6893.2014.0067

Abstract

Abstract:

In the maneuver flight of the aircraft, some key flight parameters may exceed their limitations easily. To solve this problem, a flight envelope protection controller is designed based on multi-regulator sliding mode control switch strategy. The controller contains a series of sliding mode regulators which are switched by a max/min selector. Firstly, positive invariance of the constraint set and convergence of the system are proved rigorously. Meanwhile, an intuitional method is proposed to determine the point of convergence by transforming the system to the controllable canonical form. Secondly, the stability of the closed loop system is analyzed by introducing the method of piecewise linear sliding mode and piecewise quadratic Lyapunov function. Then, the design procedures of the maneuvering envelope protection controller are presented. Finally simulation results show that the developed controller can ensure that key flight parameters do not exceed their limitations and the controlled output can track its commands well during maneuver flight of the aircraft.

Key words: flight control systems, flight envelope protection, sliding mode control, switch control, output constrained

CLC Number:

YE Hui, CHEN Mou, WU Qingxian. Envelope Protection Control for Maneuver Flight Based on Multi-regulator Sliding Mode Control Switch Approach[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2014, 35(12): 3358-3370.

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Envelope Protection Control for Maneuver Flight Based on Multi-regulator Sliding Mode Control Switch Approach

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