Robust Gain-Scheduling Control for Large Flexible Spacecraft with Linear Parameter Variation.

Abstract

In this paper, we study a design method of precise attitude controller of a LSS having problems of elastic vibration and parameter variation. For the problems, H∞ robust control, μsynthesis or gainscheduling control are known to be efficient. In this study, we apply gainscheduling control to the problem. Although many types of gainscheduling controller have been studied, we adopt an approach based on spline-type parameter-dependent quadratic forms. At first we describe the algorithm of control system design with some extensions. Then we evaluate its performance by a numerical simulation for a typical LSS model.