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首页> 外文期刊>Journal of Guidance, Control, and Dynamics >Nonlinear H1 Control Designs with Axisymmetric Spacecraft Control
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Nonlinear H1 Control Designs with Axisymmetric Spacecraft Control

机译:轴对称航天器控制的非线性H1控制设计

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In this paper, we study nonlinear control of a spacecraft symmetric about its principal axis with two controlntorques. Using a computationally efficient H1 control design procedure, attitude stabilization and commandntracking problems of the axisymmetric spacecraft are solved locally. The proposed nonlinearH1 control approachnuses higher order Lyapunov functions and reformulates the difficult Hamilton–Jacobian–Isaacs inequalities asnsemidefinite optimization conditions. Sum-of-squares programming techniques are then applied to obtainncomputationally tractable solutions, from which nonlinear control laws will be constructed. The nonlinear H1ncontrol designs for spacecraft are capable of exploiting the most suitable forms of Lyapunov functions fornperformance improvement.
机译:在本文中,我们研究了具有两个控制转矩的航天器绕其主轴对称的非线性控制。使用计算有效的H1控制设计程序,可以局部解决轴对称航天器的姿态稳定和指令跟踪问题。拟议的非线性H1控制方法采用高阶Lyapunov函数,并重新定义了困难的Hamilton–Jacobian–Isaacs不等式以及有限的优化条件。然后将平方和编程技术应用于获得可计算的可解,从中将构造非线性控制定律。航天器的非线性H1ncontrol设计能够利用Lyapunov函数的最合适形式来提高性能。

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