{"title":"The application of complex wavelet transform in voltage fluctuations detection","authors":"Zhang Rui, Liu Nan, Ma Hui-jun","doi":"10.1109/IFOST.2011.6021180","DOIUrl":null,"url":null,"abstract":"It is difficult to obtain voltage fluctuation signal for determining flicker by orthogonal wavelets transform (OWT). In this paper, the compactly supported dyadic orthogonal linear phase complex wavelet is constructed using the compactly supported dyadic orthogonal real-valued wavelet in terms of lifting scheme. A pair of quadrature components with the same amplitude and the same frequency can be used to realize the demodulation of voltage fluctuation signal in this method. Simulation results show the method proposed can get better results than OWT without synchronous sample for power grid frequency, has the characteristic of shift-invariant. Result of voltage fluctuation detection is independent of initial time recording signal.","PeriodicalId":20466,"journal":{"name":"Proceedings of 2011 6th International Forum on Strategic Technology","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2011-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Proceedings of 2011 6th International Forum on Strategic Technology","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/IFOST.2011.6021180","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
It is difficult to obtain voltage fluctuation signal for determining flicker by orthogonal wavelets transform (OWT). In this paper, the compactly supported dyadic orthogonal linear phase complex wavelet is constructed using the compactly supported dyadic orthogonal real-valued wavelet in terms of lifting scheme. A pair of quadrature components with the same amplitude and the same frequency can be used to realize the demodulation of voltage fluctuation signal in this method. Simulation results show the method proposed can get better results than OWT without synchronous sample for power grid frequency, has the characteristic of shift-invariant. Result of voltage fluctuation detection is independent of initial time recording signal.
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