Power transmission line fault single-end traveling wave fault location method based on waveform dominant feature simulation inference
The invention relates to a power transmission line fault single-end traveling wave fault location method based on waveform dominant feature simulation inference, which comprises the following steps: acquiring a line single-end current traveling wave signal by using a traveling wave device, establish...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The invention relates to a power transmission line fault single-end traveling wave fault location method based on waveform dominant feature simulation inference, which comprises the following steps: acquiring a line single-end current traveling wave signal by using a traveling wave device, establishing a same bus type simulation model to obtain an offline simulation sample library, and reading fault traveling wave data and a corresponding line simulation sample; constructing an improved mode distance similarity measure, and comparing and selecting the fault recording data with simulation data in a simulation sample library to obtain a simulation sample nearest to the fault recording data; reading a wave head prompt interval of the determined nearest simulation sample and a corresponding distance measurement equation, pre-calibrating actual measurement data through an existing wave head calibration technology, and judging whether actual measurement wave head calibration is effective or not according to whether |
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