| 检测故障分量的光纤纵联差动保护 |
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| 引用本文： | 王晓宇,伍叶凯,黄少锋.检测故障分量的光纤纵联差动保护[J].电力自动化设备,2004,24(2):60-63. |
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| 作者姓名： | 王晓宇 伍叶凯 黄少锋 |
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| 作者单位： | 华北电力大学,电力工程系,北京,102206;北京四方继保自动化有限公司,北京,100085 |
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| 摘 要： | 针对负荷电流对差动保护的影响，对故障分量电流的性质进行了分析，并对基于故障分量向量的电流差动保护动作判据进行了理论分析及EMTP仿真验证，比较得出：故障分量差动判据与传统差动判据相比，在重载线路上发生各种故障，尤其是高阻接地时，能够大大提高差动保护的灵敏度。
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| 关 键 词： | 电流差动保护 动作判据 故障分量 |
| 文章编号： | 1006-6047(2004)02-0060-04 |
Optical pilot differential current protection based on fault component |
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| WANG Xiao - yu,WU Ye - kai,HUANG Shao - feng.Optical pilot differential current protection based on fault component[J].Electric Power Automation Equipment,2004,24(2):60-63. |
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| Authors: | WANG Xiao - yu WU Ye - kai HUANG Shao - feng |
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| Abstract: | According to the influence of load on differential protection,the property of fault compo - nent current and the operation criteria for the differential protection based on fault component vector are analyzed and verified with EMTP simulation.The conclusion can be drawn that the ope - ration criteria based on fault component enhance greatly the sensibility of the protection,especially for heavy load lines with high grounding reisistance. |
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| Keywords: | differential current protection operation criteria fault component |
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