电力系统自动化2017，Vol.41Issue(5)：153-158,6.DOI:10.7500/AEPS20160420005
特高压换流变压器对称性涌流的生成及其对大差保护的影响
Symmetrical Inrush Current Mechanism of Ultra-high Voltage Converter Transformer and Its Impact on Converter Connection-transformer Differential Protection
摘要
Abstract
By drawing on the analytical method of sympathetic inrush current,the generation mechanism and variation characteristics of symmetrical inrush current caused by the energization of a set of two ultra-high voltage (UHV) converter transformers are dealt with.Based on an ultra-high voltage direct current (UHVDC) transmission project simulation model,the phenomenon of symmetrical inrush currents in the cases of UHV converter transformer energization are simulated.The reason for failure of the secondary harmonic restraint criterion to block the converter connection-transformer differential protection is explained,which provides a means for enhancing the operation reliability of the converter transformer differential protection for UHV converter stations.关键词
特高压换流变压器/对称性涌流/大差保护/和应涌流/二次谐波制动判据Key words
ultra-high voltage (UHV) converter transformer/symmetrical inrush current/converter connection-transformer differential protection/sympathetic inrush current/secondary harmonic restraint criterion引用本文复制引用
翁汉琍,李雪华,鲁俊生,李振兴,万毅,林湘宁..特高压换流变压器对称性涌流的生成及其对大差保护的影响[J].电力系统自动化,2017,41(5):153-158,6.基金项目
国家自然科学基金资助项目(51607106).本文受到三峡大学人才科研启动基金资助项目(KJ2014B043)的资助,特此感谢.This work is supported by National Natural Science Foundation of China (No.51607106). （51607106）
