Fault type identification of arc grounding based on time-frequency domain characteristics of zero sequence current
Electric Power Systems Research(2023)
摘要
•Fault type identification can be achieved using data with a length of one cycle.•The combination of THD and normalized wavelet energy coefficients are used as characteristic quantities to reflect the fault characteristics from multiple perspectives.•In comparison with other methods, this method has the advantages of speed and accuracy.
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关键词
arc grounding,time-frequency
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