摘要：Agile maneuvering and precise pointing control require special attention for spacecraft equippedwith large flexible appendages. A joint academia-industry research involving Sapienza University of Rome,Thales Alenia Space in France and the European Space Agency (ESA), investigates the use of innovativesolutions to counteract the deterioration in pointing accuracy stemming from interactions between a rigidbus and the flexible structures during operations. Specifically, this paper aims at presenting the design ofan attitude/vibration control architecture in a u-synthesis framework. The architecture consists of an attitudecontrol system combined with a distributed network of actuators/sensors at structural level for activevibration control purposes. A spacecraft equipped with an interferometric Ka-band SAR payload and twosolar arrays is considered as a useful and challenging benchmark problem to assess the proposedmethodology. The numerical simulations, carried out via both a linearized setting and a nonlinear simulator,have proved the effectiveness of the robust collocated control in comparison with a baseline PID controller.
关键词：Robust control;Large space structures;Active vibration control;collocated control
