矿井高压电网故障定位系统分析

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1、ⅡRESEARCHOFFAUITLOCAⅡONSYSTEMINMINE．USEDHIGH．VOI。ArAGEGRIDWiththedevelopmentofmineautomation，distributionnetworkplaysacriticalroleinthesafeandefficientproductionofmine．Modemcoalmineshavelargernumbersofmechanicalandelectricalequipments．Ontheotherhand，theoutletsofundergroundsubst

2、ationarevariousandlong．Alloftheseleadtoacomplexhigh—voltagedistributionnetwork．Currently,mostofcoalmineshavenotinstalledfaultlocationsystem．Whenfaulthappens，theydependonpeoplestocheckcablestofindthefault．TMsmethodisnotonlytime—waste，butalsohasblindnesswhichishardtoprotectsafean

3、defficientmnofthedistributionnetwork．Thispaperstudiedthestructureofdistributionnetworkandbuiltthemathematicalmodelofthesystem．Throughthestudyoffaultlocationalgorithm，wedesignedanintelligentlocationalgorithmbasedongraphtheorywhichisapplicableforcoalmilledistributionnetwork．Andth

4、roughthesoftwaredesignofMCGS，MATLAB，Database，Thispaperrealizedtheprecisefaultlocation，real—timedisplay,alarmandotherfunctionsofthecoalminedistributionnetwork．，nlcfaultlocationsystemdesignedbythispaperusedthetheoryoffaultdetectionmethod，andrealizedbythedesignofwirelesssensornetw

5、orkscombined砸thgroundhigh-speeddataacquisitiondevice．Thisfaultlocationmethodovercomesthedefectsoftravelingwavemethodandimpedancemethodwhichalenotavailabletodistributionnetwork．Thispaperusedanewtechnologyof21瓯century⋯wirelesssensornetworks．Byadvancedcommunicationtechnologyandint

6、erfaceprinciples，thispapersolvetheproblemsofnetworkcollisions，hiddennodesandthecommunicationbetweenMCGSandbasestation(MSP430MCU)．Intermsofsoftware，thesystemuseMCGSandMATLABasthecore．BythetlSgofsophisticatedsoftwareinterfaceandtheideaofeachother,themonitoringsystemnotonlyhasafri

7、endlyinterfacebutalsohaspowerfulcomputingcapabilitiesandmflexibilitywhichprovideagoodplatformforcomplexalgorithms．Ontheotherhand，accordingtotheneedsofthesystem，wedesignamine目录1绪{念⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．11．1课题研究的意义和目的⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．11．2故障定位方法研究现状⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯

8、⋯⋯⋯⋯⋯⋯⋯⋯21．2．1故障测距法⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯21．2．2信号注入法