Attitude control of Earth-pointing spacecraft using nonlinear H-infinity control

作者：Binette Mark R; Damaren Christopher J^*; Pavel Lacramioara

来源：Proceedings of the Institution of Mechanical Engineers - Part G: Journal of Aerospace Engineering , 2014, 228(12): 2192-2206.

DOI：10.1177/0954410013513753

• Spacecraft attitude control
• Hamilton-Jacobi equations
• gravity-gradient torque
• output feedback

The attitude control of an Earth-pointing spacecraft in a circular orbit, subject to the gravity-gradient torque, is explored. The spacecraft attitude is described using the modified Rodrigues parameters. A series of controllers are designed using the nonlinear H control methodology and are subsequently generated using a Taylor series expansion to approximate solutions of the Hamilton-Jacobi equations. These controllers are applied to the problem of Earth-pointing spacecraft in circular orbits. The controllers are compared using both input-output and initial condition simulations, in an effort to gauge the improvements made possible by nonlinear feedback.

• 出版日期2014-10