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- W3125698715 abstract "As fault process of DC transmission line develops quickly, single-terminal protection is adopted for High Voltage Direct Current based on Voltage Source Converter (VSC-HVDC) for fast isolation of faults. Single-terminal protections generally need to identify initial arrival wave (IAW) of traveling-waves (TWs). IAW is identified by wavelet transform in conventional single-terminal traveling-wave protection. However, the identification accuracy of IAW by wavelet transform is low for VSC-HVDC. To increase identification accuracy of IAW, Transient Extraction transform (TET) with high time resolution is proposed to identify IAW for traveling-wave protection in this paper. Based on the characteristics of the IAW, the TET is improved to further increase the time resolution and identify the IAW more accurately. A simulation model of double-terminal VSC-HVDC is established in PSCAD/EMTDC to verify the proposed method. IAW identification accuracy of improved TET is compared with that of wavelet transform. The simulation results show that there is a higher accuracy for identification of IAW by the improved TET in different fault condition." @default.
- W3125698715 created "2021-02-01" @default.
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- W3125698715 date "2021-01-01" @default.
- W3125698715 modified "2023-09-23" @default.
- W3125698715 title "An Improved TET Method for Traveling-Waves Protection of VSC-HVDC" @default.
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- W3125698715 doi "https://doi.org/10.1007/978-981-15-9746-6_26" @default.
- W3125698715 hasPublicationYear "2021" @default.
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