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1、第31卷2010笠第5期5月航空學(xué)報(bào)ACTAAERONAUTICAETASTRONAUTICAS1NICAV01．31No．5May2010文章編號(hào)：1000一6893(2010)05—1004一lO一種基于信息一致性的衛(wèi)星編隊(duì)協(xié)同控制策略張博，羅建軍，袁建平(西北工業(yè)大學(xué)航天學(xué)院，陜西西安710072)ASatelliteFormationCooperativeControlStrategyBasedonInformationConsensusZhangBo，LuoJianjun，YuanJianping(SchoolofAstronautics，Northwes
2、ternPolyteehnicalUniversity，Xi’an710072，China)摘要：提出一種基于信息一致性的分布式協(xié)同控制策略，實(shí)現(xiàn)了衛(wèi)星編隊(duì)的構(gòu)型建立、保持與整體機(jī)動(dòng)。首先根據(jù)編隊(duì)各星的初始相對(duì)狀態(tài)，應(yīng)用一階一致性算法，協(xié)商估計(jì)出編隊(duì)整體系統(tǒng)基準(zhǔn)參考點(diǎn)的相對(duì)狀態(tài)；再根據(jù)編隊(duì)整體系統(tǒng)模型預(yù)測(cè)方程，以凸優(yōu)化方法規(guī)劃出期望重構(gòu)機(jī)動(dòng)路徑；之后設(shè)計(jì)了基于二階一致性算法的反饋協(xié)同控制律，使各星彼此協(xié)同地跟蹤期望路徑與構(gòu)型、整體機(jī)動(dòng)參考信息，并證明了系統(tǒng)的穩(wěn)定性。仿真結(jié)果表明：只要在基準(zhǔn)參考點(diǎn)一致性估計(jì)過程中信息拓?fù)鋱D中存在最大生成樹，該策略就能實(shí)現(xiàn)衛(wèi)星編隊(duì)的協(xié)同
3、機(jī)動(dòng)；反饋協(xié)同控制律能有效消除相對(duì)初始狀態(tài)誤差與地球非球形攝動(dòng)．，z項(xiàng)引起的各星狀態(tài)偏離，并具有較好的容錯(cuò)性；與傳統(tǒng)方法相比，本文方法在燃料消耗總量與均衡性方面均有所改善，且在構(gòu)型快速建立或重構(gòu)時(shí)，燃料消耗總量方面優(yōu)勢(shì)較為明顯。關(guān)鍵詞：衛(wèi)星；編隊(duì)構(gòu)型；編隊(duì)整體機(jī)動(dòng)；路徑規(guī)劃；協(xié)同控制；一致性算法；信息拓?fù)渲袌D分類號(hào)：V448．2文獻(xiàn)標(biāo)識(shí)碼：AAbstract：Thisarticleproposesafeasiblecooperativecontrolframeworkandstrategybasedoninformationcon-sensusfortheconfi
4、gurationinitialization，maintenanceandentire-formationmaneuverofsatelliteformations．First，areferencepointofthetotalformationsystemisestimatedusingthefirstorderconsensusalgorithmac-cordingtOtheinitialstateofeachsatellite．Second，byemployingtheconvexoptimizationtechnique，thede-siredreconfi
5、gurationpathsareobtainedbaseduponthemodelpredictivefunctionoftheentire-formationsys—tem．Finally，acooperativecontrollawisdesignedbasedonthesecondorderconsensusalgorithmwhichin-duceseachsatellitetOtrackcoordinatelythedesiredpathandreferenceinformationoftheentire-formationma—neuver．Inaddi
6、tion，systemstabilizationisanalyzedandrealized．Simulationresultsdemonstratethatthecon—trolstrategycanimplementthementionedformationmaneuveriftheformationinformationtopologycontainsarooteddirectedspanningtreeduringthereferencepointconsensusestimation；theneachsatellitetrajectoryde—viation
7、，causedbyinitialerrorsandJ2gravitationalperturbation，canbeeliminatedeffectivelybythefeedbackcooperativecontrollaw，whichdemonstratesthefinefault—tolerantpropertiesofthecontrolstrategy．Atom-pariaonofthestrategywiththetraditionalmethodshowspreliminarilythattheproposedentire-formationsys
