考虑燃料晃动效应的航天器自适应滑模姿态控制

doi:10.3969/j.issn.1674-1579.2013.02.008

Abstract

Abstract: In this paper, we analyze the dynamic characteristics of a spacecraft in low gravity with spherical tanks. The dynamic model of fuel sloshing is equivalent to a usual pendulum model. The state variables of the system are divided into two parts. In the case that three important parameters change with the fuel consumption, an adaptive hierarchical sliding-mode controller is designed in this paper. Using the Lyapunov method, parameter adaptive laws are derived, which guarantee the stability of the closed-loop system .The simulation results show that the system can achieve attitude tracking precision in a short time, as well as the fuel slosh is effectively suppressed.

Key words: liquid-filled spacecraft, attitude control, adaptive control, sliding mode control

CLC Number:

XING Jian, QI Rui-Yun. Adaptive Sliding-Mode Attitude Control of Spacecraft with Fuel Sloshing[J]., 2013, 39(2): 42-47.

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URL: http://journal01.magtech.org.cn/Jwk3_kjkzjs/EN/10.3969/j.issn.1674-1579.2013.02.008

http://journal01.magtech.org.cn/Jwk3_kjkzjs/EN/Y2013/V39/I2/42

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Adaptive Sliding-Mode Attitude Control of Spacecraft with Fuel Sloshing

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