反馈线性化超低空空投抗侧风滑模控制律设计

doi:10.3969/j.issn.0255-8297.2014.03.013

Abstract

Abstract: Translation of the inner cargo coupled with the crosswind threats flight safety and affects the mission of airdrop. To solve the problem, a controller combining feedback linearization with variable structure is proposed. The system is decoupled and linearized using a differential geometry feedback linearization technique. Thus, the inner loop for altitude angle control is designed by using the variable structure theory so that system robustness is ensured. The flight control system is completed by combining with the outer loop PID control for path-hold. Simulation results confirm that a controller with strong robustness can satisfy the airdrop indexes.

Key words: ultra-low altitude airdrop, crosswind, nonlinear feedback linearization, sliding mode variable structure control, robustness

CLC Number:

V249

LIU Ri, SUN Xiu-xia, LI Da-dong, DONG Wen-han. Counteracting Crosswind Sliding Mode Control of Ultra-low Altitude Airdrop Based on Feedback Linearization[J]. Journal of Applied Sciences, 2014, 32(3): 311-318.

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Counteracting Crosswind Sliding Mode Control of Ultra-low Altitude Airdrop Based on Feedback Linearization

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