Abstract: Acombinedcontrolmethodwhichconsistsoffeedbackcontrolandfeedforwardcontrolwaspresented.Thefeedbackloopeliminatesrigidbody′sattitudeerroraroundtargetattitude,whilefeedforwardcontrolpreventsfromelasticvibration.Forfeedbackloop,thetraditionalPDcontrolwasadopted.Forfeedforwardcontrol,thesuboptimalsinusoidalcontrolwasadopted.Suboptimalsinusoidalcontrolconsistsofseriesofsinusoidsexcitinglittlevibrationofelasticmodesfromlowordertohighorder.Numericalsimulationwascarriedouttoverifythemethod.Theresultsshowthat,byusingthecombinedcontrol,themaneuvertaskcanbefulfilledeffectivelyinthepresenceofdynamicaluncertaintiesanddisturbance.

Key words: Quickmaneuver, Combinedcontrol, Suboptimalsinusoidalcontrol, Gausspseudospectralmethod, Elasticsatellite