| 引用本文: | 杨兰,曾祥君,陈众,张艳平.基于负序电压极化的自适应阻抗继龟器研究[J].电力自动化设备,2006,(3):25-27 |
| .Study on adaptive impedance relay based on negative sequence voltage polarization[J].Electric Power Automation Equipment,2006,(3):25-27 |
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| 摘要: |
| 提出了一种基于负序电压极化的自适应接地阻抗继电器方案，并对其动作特性进行了分析。该继电器可根据接地电阻的大小自动调整继电器的动作边界，对接地电阻有极强的自适应能力。同时，继电器不存在动作的“电压死区”，具有明确的方向性。通过Matlab仿真分析结果证明，该继电器具有优良的动作特性，在500kV的高压线路上有良好的耐受过渡电阻能力。 |
| 关键词: 阻抗继电器 自适应动作特性 过渡电阻 |
| DOI： |
| 分类号:TM588.3 |
| 基金项目: |
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| Study on adaptive impedance relay based on negative sequence voltage polarization |
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YANG Lan ZENG Xiang-jun CHEN Zhong ZHANG Yan- ping
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| Abstract: |
| An adaptive impedance relay based on negative sequence voltage polarization is proposed,and its operating characteristic is analyzed. Its protective zone is adaptively changed according to different earth-fault resistance. There is no operative"voltage dead zone",and the definite directionality exists. Simulative analysis with Matlab proves its good operating characteristic and strong adaptability to earth resistance on 500 kV line. |
| Key words: impedance relay adaptive operating characteristic transition resistance |
