Abstract
AbstractWith the increasing demand for the performance of remote sensing payloads, satellites have become more precise and less tolerant of vibrations. The focus of this paper lies on the dynamic analysis and compound control strategy proposal for high performance satellite with flexible appendages. A hybrid proportional differential (PD) + compensated positive position feedback (CPPF) control means is proposed to address the attitude control and vibration suppression problem in the presence of dynamic coupling between the satellite platform and the flexible attachments. To this end, a three-axis stabilized satellite with one flexible antenna and two solar panels is investigated. Dynamic equations of the satellite system in pitching channel are firstly established. Then, a PD controller and a CPPF controller are established respectively for attitude control of the platform and vibration suppression of the flexible appendages. Furthermore, numerical analysis and comparative simulations are implemented and illustrated for the investigated satellite system, which confirm the superiority and efficacy of the proposed methodology.KeywordsPDCPPFAttitude controlVibration suppression
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