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Travelling wave (TW) differential protection fully utilizes the fault information contained in TW at both terminals of a transmission line, so it's a protection with high reliability and high selectivity. However, because TW differential protection needs a large amount of communication, it cannot be put into practical use. This paper proposes a TW differential protection which is based on equivalent...
Effective analysis method is required to analyze the entire traveling wave (TW) process, which includes the initial and succeeding TWs. As TW directional protection only uses the initial TWs to avoid potential confusion that may be caused by the aliasing of TWs, a long-term reliable criterion is difficult to offer. Thus, this paper proposes an analysis method for the whole TW process based on an equivalent...
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