电力系统保护与控制Issue(3)：26-31,6.
一种特高压直流输电线路单端电压暂态保护原理
The principle of single-ended transient based voltage protection for UHVDC transmission line
摘要
Abstract
The smoothing reactor, DC filter and PLC filter form the physical boundary of UHVDC transmission line. The frequency characteristics of UHVDC transmission line and line boundary are analyzed, and the attenuation of high frequency fault transient signal caused by UHVDC transmission line boundary and transmission line is studied. The protection area of transient based protection of UHVDC transmission line which is widely used now is analyzed, and it is concluded that the transient based protection method can not protect the whole transmission line. Considering the attenuation of high frequency fault transient signal caused by UHVDC transmission line boundary and transmission line, single-ended transient based voltage protection method of UHVDC transmission line which uses protector to distinguish the opposite inside fault from outside fault is studied. The actual parameter simulation model is built, and the single-ended transient based voltage protection method studied in this paper is simulated.关键词
特高压直流/线路边界/频率特性/单端电压暂态保护/频谱分析Key words
UHVDC/transmission line boundary/frequency characteristic/single-ended transient based voltage protection/frequency analysis分类
信息技术与安全科学引用本文复制引用
陈仕龙,束洪春,万春红,李斌,杨毅..一种特高压直流输电线路单端电压暂态保护原理[J].电力系统保护与控制,2013,(3):26-31,6.基金项目
国家自然科学基金资助项目(50977039,51105183,51267008) （50977039,51105183,51267008）
云南省应用基础研究基金项目(2010ZC050) （2010ZC050）
云南省教育厅科学研究基金项目(09Y0057) （09Y0057）
