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Search Results: 1 - 1 of 1 matches for " YANGZhuangzhuang "
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Method of Mechanical Fault Intelligent Diagnosis Based on Vibration Signal of High Voltage Circuit Breaker
YANGZhuangzhuang,LIUYang,ZHOUGuoming,LINXin,JITian,LIBin
高压电器 , 2014,
Abstract: Basedonvibrationsignalofhighvoltagecircuitbreaker,anewmethodofintelligentfaultdiagnosisthatwaveletpacketextractsenergyentropywhichareusedascharacteristicvectorofthesupportvectormachine(SVM)toconstructclassifierforfaultdiagnosisispresented.Theaccelerationsensorsareappliedtocollectingthevibrationdataofdifferentstatesofhighvoltagecircuitbreakersbasedonself-madeexperimentalplatforminthismethod.Thewaveletpacketarefullyappliedtoanalyzethevibrationsignalanddecomposevibrationsignalintothreelayers,andwaveletpacketenergyentropyofeachfrequencybandareasthecharacteristicvectorofcircuitbreakerfailuremode.Thentheintelligentdiagnosisnetworkisestablishedonthebasisofthesupportvectormachinetheory.Itisverifiedthatthemethodhasabettercapabilityofclassificationandahigheraccuracycomparedwiththetraditionalneuralnetworkdiagnosismethodthroughdistinguishingthethreefaultmodeswhicharetrippingdevicestuck,thevacuumarcingchamberfixedboltloosenessandtoomuchfrictionforceofthetransmissionmechanismofcircuitbreakerinthispaper.
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