Integral-type sliding mode finite-time fault tolerant control for spacecraft attitude control
MA Guang-fu
YU Yan-bo
LI Bo
HU Qing-lei
Abstract：This paper addresses the problem of integral-type sliding mode robust fault tolerant control for spacecraft , in the presence of actuator failures and external disturbances simultaneously, achieving the finite-time attitude stabilization. As a stepping stone, a simple saturated nominal controller is firstly designed using homogeneous system theory, to ensure finite-time attitude stabilization of spacecraft without failures and disturbances. Then, utilizing integral-type sliding mode and adaptive techniques, a novel finite-time robust fault tolerant control strategy is developed to compensate for actuators failures and external disturbances. And also, the chattering problem has been restrained via a gain adjusting law. Final-ly, numerical simulation results are presented to illustrate and highlight the fine performance benefits obtained using the proposed scheme, especially for the faster and higher-precise attitude stabilization.
Keywords：integral-type sliding modespacecraftfinite-timeattitude controlfault tolerant control
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( 1028-1034 )