›› 2016, Vol. 36 ›› Issue (3): 77-84.doi: 10.16708/j.cnki.1000-758X.2016.0037

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InclinationandeccentricitycombinationcontrolmethodusingelectricpropulsionforGEOsatellitestationkeeping

 LI  Qiang, ZHOU  Zhi-Cheng*, YUAN  Jun-Gang, WANG  Min   

  1. InstituteofTelecommunicationSatellite,ChinaAcademyofSpaceTechnology,Beijing100094, China
  • Received:2015-11-12 Revised:2015-12-04 Online:2016-06-25 Published:2016-05-11

Abstract: NowadaysmostadvancedGEOsatellitescollocateelectricthrusterswithhighspecificimpulsetoexecutenorth-southstationkeeping,whichcanefficientlydecreasepropellantconsumption.ForGEOsatellites,electricthrustersusuallycontrolsnothingbutinclination,whilebipropellantthrustercontrolseccentricityandmeanlongitude.AimingatthestationkeepingofGEOsatellitewithelectricthruster,asortofcombinationcontrolmethodofinclinationandeccentricityusingelectricthrusterswasproposed.Theoptimizationmodelforsolvingthecontrolequationswasdeveloped.Twokindsofsimplifiedalgorithmwereinducedbyreducingtheoptimizationmodeldimensionality,whichdeeplydecreasethecomputationalcomplexityandwasconvenientforautonomouscomputationofGEOsatellitestationkeeping.Thismethodcanbeusedtosimulatethecombinedinclinationandeccentricitysimultaneouslyandprecisely,whichleadstothereductionofpropellantconsumptionforstationkeeping.Thesimulationresultsindicatethatthecombinationcontrolmethodhastheadvantagesofhighstationkeepingefficiencyandhighcontrolprecision.

Key words: GEOsatellite, stationkeeping, electricpropulsionsystem, inclinationcontrol, eccentricitycontrol, combinationcontrol