Feedback Linearization Based Generalized Predictive Control of Jupiter Icy Moons Orbiter

摘要

This paper presents a nonlinear dynamic model of Jupiter Icy Moons Orbiter (JIMO), anconcept design of a spacecraft intended to orbit the three icy moons of Jupiter, namely,nEuropa, Ganymede, and Callisto. The work in this paper represents a part of the feasi-nbility study conducted to assess control requirements for the JIMO mission. A nonlinearndynamic model of JIMO is derived, which includes rigid body as well as flexible bodyndynamics. This paper presents a novel hybrid control strategy, which combines feedbacknlinearization with generalized predictive control methodology in a two-step approach fornattitude control of the spacecraft. This feedback linearization based generalized predic-ntive control (FLGPC) law is used to accomplish a representative realistic in-orbit ma-nneuver to test the efficacy of the controller. The controller performance shows that thenFLGPC is a viable methodology for attitude control of a similar class of spacecraft. Thenresults presented are a part of exhaustive study conducted to evaluate various controller