断路器操作机构的仿真及优化分析.pdf

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1、机床与液压Jun．2013HydromechatronicsEngineeringVo1．4lNo．12DOI：10．3969／j．issn．1001-3881．2013．12．028SimulationandOptimizationAnalysisofCircuitBreakerOperatingMechanismWUji，AIShijie，CHENYingxiaDazuPowerSupplyCo．，Ltd．，ChongqingElectricPowerCORP，Chongqing402360，ChinaAbstract：Buildthree-

2、dimensionaIsolidmodeIofcircuitbreakeroperatingmechanisminProE．{m—portthebuiltmodelintoADAMS，andbuildmulti—bodydynamicsmodeloftheoperatingmecha-nism．andcarryoutsimulationforthebuiltmulti—bodydynamicsmode1．Analyzetheinfluenceoftheparameterssuchasenergystoragespringandmembershap

3、eetc．onthebreakingspeedofcircuitbreakeroperatingmechanism，andoptimizeandimprovetheoperatingmechanismbasedonthis．Throughanalysisforthesimulationcalculationresults．obtaintheminimumenergyre-quiredbyclosingprocess．andtheenergystoragestifnesscorrespondingtotheminimumenergyandvalue

4、ofthepreload．Keywords：circuitbreaker，operatingmechanism，virtualprototype，dynamicsimulationThecircuitbreakerplaysanimportantroleinareclosedbymanualoperationorelectrically．Afterpowerdistributionsystem，whichcanbeusedtodis—themaincontractsareclosed，thefreetrippingmech—tributeelec

5、tricenergy，withoutneedingtostartthea—anismwilllockthemaincontactsattheclosingposi．synchronousmotor．Itplaysaroleinprotectingthetion．Thecoilsofover．currentreleaseandthether-powercircuitandmotor．Whenthefailuressuchasmalelementsofthereleaseareinserieswiththesevereoverload，shortci

6、rcuitandundervoltageoc—maincircuit，andthecoilsoftheunder．voltagere—cur，itcancutoftherelatedcircuitautomatically，leaseareinparallelwiththepower．W-henshortcir-anditsfunctioncoversthefusetypeswitchandover—cuitorseriousoverloadoccurinthecircuit．thear-underthermalrelay．Theoperatin

7、gmechanismisanmatureoftheover．currentreleasewillbeclosed。toimportantpartofcircuitbreaker，theperformanceofmakethefreetrippingmechanismact，andthemainwhichmaydeterminetheopeningandclosingper-contactswi11disconnectthemaincircuit．Whentheformanceofthecircuitbreakerdirectly．Thus，the

8、circuitisoverloaded，thethermalelementsofthesimulationandoptimization