To eliminate the barriers to synchronized collection of electrical quantity data and address the issue of unbalanced differential current,this paper analyzes a method for protection data self-synchronization based on fault detection moments.A waveform similarity comparison based new protection criterion is established by employing multi-terminal current synthesis and Tanimoto coefficient.Based on the real-time data transmission capability of 5G network,a comprehensive and rapid protection scheme for multi-terminal distribution network is developed.Simulations with PSCAD/EMTD software show that the proposed scheme can rapidly and reliably identify fault section,matching the complex fault scenarios in the distribution network.
关键词
故障自同步/信息合成/Tanimoto波形相似度/5G传输/多端配电网/快速保护方案
Key words
fault self-synchronization/information synthesis/Tanimoto waveform similarity/5G transmission/multi-terminal distribution network/fast protection scheme
维普
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