工矿自动化

120082IndustryandMineAutomationNo.1Feb.2008:1671-251X(2008)01-0001-043,(,100081):,,,:;;;;:TD76;TP391:AApplicationofBayesianNetworksinSafetyAssessmentofCoalMineProductionSystemLIUWen2sheng,ZENGFeng2zhang(ManagementandEconomicSchoolofBeijingInstituteofTechnology,Beijing100081,China)Abstract:ThepaperintroducedtheBayesiannetworksbrieflyanddiscussedthealgorithmoftrans2formingfaulttreeintoBayesiannetworksatfirst,thentakingsafetyassessmentofundergroundlanewaytransportationaccidentofcoalmineproductionsystemasexamplemadecomputersimulation,anddis2cussedtheadvantagesofsafetyassessmentforcoalmineproductionsystembasedonBayesiannetworks.Keywords:coalmineunderground,safetyproduction,safetyassessment,faulttreeanalysis,Bayesiannetworks:2007-08-063:(2003307):(1977-),,,,0,,,,,[1],(ProcessSafetyReview)(SafetyChecklistAnaly2sis)(FaultTreeAnalysis,FTA)[2]:;;;,,(,),:(1);(2);(3),,,,,(BayesianNetworks,BN)[3],,[45]BNN=V,E,P,V,E(DirectedAcyclicGraph,DAG),PVV={X1,X2,,Xn},EBN2:,DAG,d(d2Separation);,(ConditionalProbabilityTable,CPT),CPT,(configura2tion),d,V:P(X1,X2,,Xn)=nj=1P(Xi|parent(Xi))(1)BNE(),(P(Q|E)),[6]1BN[7],,,BN:(1)()BN,BN;(2)BN;(3)BN,,BN;(4)BN,;(5)BNCPT,BN,BN,,CPT,3ABC,1,,0,,BN()11,BN1FTBN2,,50%,48%BN,BN2.1211,:(A)(B)BN,GeNIe,BN,322008221A-X40.005B-X50.01C-X60.002D-X70.007E-X80.02F-X90.008G-X100.003X10.003X110.006X20.02X120.005X30.004T-3BNBN1X1X12T,2,,2TABT101010012.2BN2.2.1X1X12BN,P(T)=0.00056077P(T)=0.00056815,2,BN,[8]2.2.2,,BN,,,,T,X1X12,33X10.0030.141236X70.0070.174992X20.020.124208X80.020.499976X30.0040.0248106X90.0080.199991X40.0050.00525923X100.0030.185809X50.010.102579X110.0060.371619X60.0020.0124208X120.0050.3096823,X80.499976,,,,X8,,X11X12X8,,,X11X123BN,,BN,320081::2007-07-243:(20060386):(1965-),,,,,,BN,,BN,,:[1],.[J].,1996,6():3639.[2].[M].:,2002.[3]JESENFV.BayesianNetworksandDecisionGraphs[M].NewYork:Springer,2001.[4]JENSENFV.AnIntroductiontoBayesianNetworks[M].London:UCLPress,1996.[5]DORNER,SHIS,JIES,etal.Multi2objectiveMod2elingandDecisionSupportUsingaBayesianNetworkApproximationtoaNon2pointSourcePollutionModel[J].EnvironmentalModeling&Software,2007,22(2):211222.[6]VANDERGAAGLC.BayesianBeliefNetworks:OddsandEnds[J].TheComputerJournal,1996(39):97113.[7]SIGURDSSONJH,WALLSLA,QUIGLEYJL.BayesianBeliefNetsforManagingExpertJudgementandModelingReliability[J].QualityandReliabilityEngineeringInternational,2001(17):181190.[8],.[M].:,1992:5456.120082IndustryandMineAutomationNo.1Feb.2008:1671-251X(2008)01-0004-053,,(,125105):,,PID,,Matlab,,:;;;;;PID;;:TM343;TP273:AResearchofControlMethodofSoftStartingforAsynchronousMotorandItsSimulationCHENZhong2hua,GUOFeng2yi,SHIZhao2yuan(CollegeofElectricalandControlEngineeringofLiaoningTechnicalUniversity,Huludao125105,China)Abstract:Throughanalysisofmechanicalchractericticsofconstantloadandpumpload,thepaperestablishedmathematicmodeloftorqueslopeandcurrent2limitedstaringmodeforasynchronousmotor.Inthealgorithmoftorqueslopeandcurrent2limitedstartingmode,closedtorqueloopadoptedtraditionalcontrolofPID,closedcurrent2limitedloopusedfuzzycontrol,andappliedMatlabtosimulate.Thesimu2lationresultshowedthatthemathematicmodeloftorqueslopeandcurrent2limitedstartingmodewerecorrectandeffective,controlmodeachievedpreconcertedeffect.