變壓器涌流識(shí)別的仿真與研究
韓天博1，洪晨2，陳輝1，邵美才1，余晨昊1，陳中穎1
（1 南京工程學(xué)院 電力工程學(xué)院，江蘇 南京 211167；2 國(guó)網(wǎng)豐縣供電公司，江蘇 豐縣 221700）
摘 要：勵(lì)磁涌流的鑒別是電力變壓器差動(dòng)保護(hù)中一個(gè)大問(wèn)題，而和應(yīng)涌流在近些年引發(fā)多起變壓器差動(dòng)保護(hù)誤動(dòng)事故。分析了變壓器勵(lì)磁涌流與和應(yīng)涌流的特征及相互之間的關(guān)系，闡述當(dāng)前勵(lì)磁涌流判別方法的原理、存在的問(wèn)題以及解決方案，并對(duì)勵(lì)磁涌流與和應(yīng)涌流識(shí)別的發(fā)展作出預(yù)測(cè)，指出未來(lái)智能化的模糊多判據(jù)識(shí)別系統(tǒng)才能滿足愈發(fā)復(fù)雜的變壓器涌流現(xiàn)象的鑒別。
關(guān)鍵詞：勵(lì)磁涌流；和應(yīng)涌流；Matlab 仿真；涌流識(shí)別
中圖分類號(hào)：TM401+.1 文獻(xiàn)標(biāo)識(shí)碼：A 文章編號(hào)：1007-3175(2017)07-0033-04
Simulation and Research of Identification on Transformer Inrush Current
HAN Tian-bo1, HONG Chen2, CHEN Hui1, SHAO Mei-cai1, YU Chen-hao1, CHEN Zhong-ying1
（1 School of Electric Power Engineering, Nanjing Institute of Technology, Nanjing 211167, China;
2 State Grid Fengxian Power Supply Company, Fengxian 221700, China）
Abstract: Excitation inrush current identification is a big problem in power transformer differential protection, and in recent years, the inrush current causes several transformer differential protection maloperation accidents. This paper analyzed the transformer excitation inrush current, sympathetic inrush current characteristic and the relationship between each other, and then expounded the principle of current excitation inrush current identification method, the existence question as well as the solution. This paper predicted the development of excitation inrush current and sympathetic inrush current and pointed out that only the future intelligent fuzzy multiple criteria recognition system can satisfy the increasingly complex phenomena of transformer inrush current identification.
Key words: excitation inrush current; sympathetic inrush current; Matlab simulation; inrush current identification
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