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- W3201909585 abstract "Partial discharge (PD) online monitoring is an essential part of transformer insulation condition based maintenance and prognostics and health management in industrial power system. In order to realize online localization of multiple PD sources conveniently, an approach that uses single-channel mixed acoustic emission (AE) signal is proposed in this article. First, the combined method based on the singular spectrum analysis and the independent component analysis is used to calculate the number of PD sources and realize the separation of mixed AE signals. Next, a difference selection algorithm is proposed to solve the problem that the inherent disorder of signal blind source separation makes the time difference of arrival technology difficult to localize the multiple PD sources directly. Then, the simulation signals and measured signals have verified that the signal separation effect of the proposed single-channel-based method is no less than that of the multichannel-based method. Finally, the proposed approach is applied to a transformer. The disordered separated signals were successfully grouped to realize multisource PD localization." @default.
- W3201909585 created "2021-10-11" @default.
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- W3201909585 date "2022-09-01" @default.
- W3201909585 modified "2023-10-06" @default.
- W3201909585 title "Convenient Online Approach to Multisource Partial Discharge Localization in Transformer" @default.
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- W3201909585 doi "https://doi.org/10.1109/tie.2021.3116545" @default.
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