电力系统自动化2019，Vol.43Issue(4)：132-138,7.DOI:10.7500/AEPS20180412004
基于波形相似度的抗电流互感器饱和变压器相位差动保护
Waveform Similarity Based Transformer Phase Differential Protection Against Current Transformer Saturation
摘要
Abstract
The saturation of current transformer results in the decrease of reliability and rapidity of transformer differential protection.The waveform similarity is used to extract the phase information of the current on both sides of the transformer, especially when the current transformer is saturated.A transformer differential protection criterion against current transformer saturation based on waveform similarity is proposed to identify various faults including saturation of current transformer.The results of simulation and dynamic simulation tests show that the criterion can make correct judgments when identifying faults inside and outside the transformer, especially when the current transformer is saturated.In the case of noise interference, the fault can be identified effectively only by simple processing.关键词
变压器保护/相位差动保护/抗电流互感器饱和/波形相似度/Hausdorff距离算法Key words
transformer protection/phase differential protection/against current transformer saturation/waveform similarity/Hausdorff distance algorithm引用本文复制引用
翁汉琍,王胜,林湘宁,陈乐,黄景光,李振兴..基于波形相似度的抗电流互感器饱和变压器相位差动保护[J].电力系统自动化,2019,43(4):132-138,7.基金项目
国家自然科学基金资助项目(51607106) （51607106）
