考虑输入饱和的直升机机动飞行LPV控制

doi:10.12305/j.issn.1001-506X.2022.02.34

Abstract

Abstract:

In view of the input saturation problem of helicopter maneuvering flight, a state feedback control method based on the parameter-dependent Lyapunov function is proposed. Based on the nonlinear model of the helicopter, the longitudinal linear parameter varying (LPV) model of the helicopter is established, and the trajectory of hovering maneuvering course is modeled by the inverse simulation numerical analysis method. Based on the theory of domain of attraction and set invariance, the stabilization conditions of the closed-loop system are obtained by using parameterized linear matrix inequalities (PLMI). Then, the PLMI condition of the controller is transformed into the linear matrix inequalities (LMI) condition by using the slack variable technique, and the control law of the hovering maneuver trajectory tracking is obtained. Simulation results show the feasibility and effectiveness of the proposed model and the control method.

Key words: linear parameter varying (LPV), affine parameter dependent, input saturation, maneuvering flight, slack variable

CLC Number:

V249.1

Shuo LI, Shaojie ZHANG, Peng YAN, Han ZHANG, Ke LU. LPV control for helicopter maneuvering flight considering input saturation[J]. Systems Engineering and Electronics, 2022, 44(2): 637-643.

Figures/Tables 7

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LPV control for helicopter maneuvering flight considering input saturation

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