基于MATLAB的线性系统稳定性分析及应用

194200712JournalofTarimUniversityVo.l19No.4Dec.2007:1009-0568(2007)04-0069-04MATLAB(,843300)MATLABSIMULINk,,,MATLAB;;;SIMULINK:TP273:AStabilityAnalysisandApplicationoftheLinearSystemBasedonMATLABJiangXia(CollegeofInformationEngineering,TarimUniversity,Alar,Xinjiang,843300)AbstractThestabilityisthepriorityofthesysteminactualapplication.MakinguseoftheMATLABfunctionandSIMULINKdynam-icsimulationtoanalyzethesystemstabilityissimpleandtheresultisaccurate.Thispaperverifieditsreliabilityandusefulnessbyac-tualexamples.KeywordsMATLABfunction;systemstability;polepoint;simulinkdynamicsimulation引言,,,,,,,MATLAB,,MATLAB,1系统稳定性的分析方法概述,(),,,,,,,,,,,[1],MATLAB,MATLAB,2利用MATLAB进行系统稳定性分析2.1MATLAB,,,,H(s)=s+2s2+2s+2:2007-04-18:(1982-),,,E-mai:[e-mail]19,MATLAB,:[2]num=[12];%den=[122];%[z,p]=tf2zp(num,den)%pzmap(num,den)%MATLAB:z=-2p=-1.0000+1.0000i-1.0000-1.0000i,P,,S,1(,o),,H(s)=3s4+2s3+s2+4s+23s5+5s4+s3+2s2+2s+1,,,MATLABnum=[32142];den=[351221];[z,p]=tf2zp(num,den)pzmap(num,den):z=0.4500+0.9870i0.4500-0.9870i-1.0000-0.5666p=-1.60670.4103+0.6801i0.4103-0.6801i-0.4403+0.3673i-0.4403-0.3673i22,s,S,2.2MATLAB\SIMULINKs,,MATLAB\SIMULINK,SIMULINK[3],LTISystemStepDerivativeScopeH(s)=3s4+2s3+s2+4s+23s5+5s4+s3+2s2+2s+1(2.1)[4]704:MATLAB341LTIsystemLTIsystemvariable()tf([32142],[351221])4,,,,,,[5],2.1,,,5,,67,,(BIBO)[6]MATLAB,,,57119673结束语MATLAB,,,,,;,,MATLAB,,,,[7][1],,.MATLAB[J].,2006(2):111.[2],.Matlab[J].,2005(2):80~82.[3].MATLAB7.0[M].:,2006:262.[4],,.MATLAB[J].,2007(6):55~56.[5].()[M].:,1998:330.[6].()[M].:,1993:145~147.[7].MATLAB[J].,2007(16):52~53.72