计及微振磨损及风雨荷载的输电线可靠性建模和评估

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1、重庆大学硕士学位论文英文摘要broken.Inthispaper,thewindloadsmodelissolvedaccordingtothedesignstandardsoftransmissionlines,therainloadsmodelissolvedaccordingtotheraindropsmodelandconservationofenergy.Combinedwithstructuralreliabilitytheory,thetime-dependentfailureprobabilitymodeloftransmissionline

2、sisestablishedundertheimpactofstrongwindandrain.Theexampleshows:theheavyrainfallnotonlytriggersgeologicaldisastersandaffectthesafetyofthetowerfoundation,butalsohassomeimpactforlinesstructuralstrength.Theinfluenceoffrettingtolinesstructuralreliabilityislong-termaccumulation,andthein

3、fluencestrongwindandraintolinesstructuralreliabilityisshort-termimpact.Inthispaper,thetime-dependentreliabilitymodeloftransmissionlineswithlong-termfrettingisestablishedandthepowersystemreliabilityisassessedundertheimpactofstrongwindandrain.Theexampleshows:thefrettingissensitivetot

4、helinesreliabilityundertheimpactofstrongwindandrain;rainloadscannotbeignoredunderthecombinedeffectofwindandrainloads.Keywords：Transmissionlines,Fretting,Windandrainloads,Time-dependentreliabilitymodel,Short-termreliabilityassessmentIII重庆大学硕士学位论文目录目录中文摘要.............................

5、.............................................................................................................I英文摘要........................................................................................................................................II1.绪论..........................

6、............................................................................................................11.1.课题的研究背景及意义.........................................................................................................11.2.国内外研究现状..........................................

7、...........................................................................11.2.1.输电线微振磨损的研究现状...........................................................................................11.2.2.强风雨对电网影响的研究现状.............................................................................

8、..........41.2.3.天气因素对电网短期