Decentralized Frequency Shaping and Modal Sensitivities for Optimal Control of Large Space Structures

Abstract

Abstract In recent years methods from the area of decentralized control have emerged for analysis and control of large flexible space structures. Many critical issues remain for consideration in control problems of flexible spacecraft, including the need for incorporation of actuator dynamics in the system model, the need for an initial stabilizing feedback solution to initiate computation in optimal controller design, and the need for inclusion of frequency domain constraints into the state-space formulation. In this paper we present approaches cast in a decentralized setting which address each of these issues.