Incremental filtered nonlinear control for aircraft with actuator dynamics compensation
ZHOU Chi-jun
ZHU Ji-hong
YUAN Xia-ming
LEI Hu-min
Abstract：To deal with the model uncertainties existed in high angle-of-attack maneuvers situation, a novel incremental filtered nonlinear control approach with considering the compensation for actuator dynamics is proposed. Based on the attitude dynamics of thrust vector aircraft, incremental controllers are designed to regulate incidence angles and angular rates via the Taylor expansion and state derivatives feedback. To handle the delay caused by the acquirement of state derivatives using low-pass filter, the same filter process is applied to compensate the inputs to guarantee synchronization of the feedback of state derivatives and control variables. In addition, the closed-loop analysis for angular rates is carried out to illustrate the effects of actuator dynamics. Moreover, a compensator is developed to achieve the desired actuator dynamics, which removes the requirements for high-bandwidth actuator inherent in incremental control. The strong robustness and fast dynamic response performance of the proposed control approach are verified by numerical simulations.
Keywords：high angle-of-attack maneuverincremental controllow-pass filteractuator dynamicsrobustness
Publication Date：2017-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：7( 594-600 )