{"title":"Vibration Signal Processing and State Analysis Technology for On-Load Tap-Changer","authors":"Zhixian Zhang, Weigen Chen, J. Lei, Hongrui Gu","doi":"10.1109/Diagnostika49114.2020.9214715","DOIUrl":null,"url":null,"abstract":"Extracting key information from OLTC (On-Load Tap-Changer) vibration signal which contain a lot of redundant information and noise is the premise to achieving precise OLTC state diagnosis. In this paper, a Wiener filter algorithm for OLTC vibration signal is designed to adaptively reduce noise in on-site application; then a method for extracting vibration signal envelopes based on the principle of diode envelope detection is designed to acquire envelope of OLTC vibration signal and current signal of OLTC drive motor. Finally, several key parameters were extracted from the envelopes to analyze the operating states of OLTC.","PeriodicalId":428555,"journal":{"name":"2020 International Conference on Diagnostics in Electrical Engineering (Diagnostika)","volume":"53 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2020-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2020 International Conference on Diagnostics in Electrical Engineering (Diagnostika)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/Diagnostika49114.2020.9214715","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 1
Abstract
Extracting key information from OLTC (On-Load Tap-Changer) vibration signal which contain a lot of redundant information and noise is the premise to achieving precise OLTC state diagnosis. In this paper, a Wiener filter algorithm for OLTC vibration signal is designed to adaptively reduce noise in on-site application; then a method for extracting vibration signal envelopes based on the principle of diode envelope detection is designed to acquire envelope of OLTC vibration signal and current signal of OLTC drive motor. Finally, several key parameters were extracted from the envelopes to analyze the operating states of OLTC.
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