| 一种利用电压模故障分量的选相元件 |
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| 引用本文： | 王兴国,黄少锋,刘千宽.一种利用电压模故障分量的选相元件[J].水电自动化与大坝监测,2008,32(9):42-46. |
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| 作者姓名： | 王兴国 黄少锋 刘千宽 |
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| 作者单位： | 华北电力大学电力系统保护与动态安全监控教育部重点实验室，北京市 102206 |
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| 摘 要： | 针对系统参数可能的变化，分析了各种类型故障条件下电压模故障分量在故障点和保护安装处的特征，提出了一种利用电压模故障分量的选相元件，该元件利用电压故障分量，故障发生后可以快速动作。在此基础上，针对线路末端经高阻单相接地时该元件灵敏度不足的问题，提出了一种选相方案。ATP仿真和MATLAB分析验证了该方案的可行性。
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| 关 键 词： | 继电保护 电压模故障分量 选相元件 |
| 修稿时间： | 4/14/2008 4:33:45 PM |
A Phase-selector Based on Voltage Modal Fault Component |
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| WANG Xingguo,HUANG Shaofeng,LIU Qiankuan.A Phase-selector Based on Voltage Modal Fault Component[J].HYDROPOWER AUTOMATION AND DAM MONITORING,2008,32(9):42-46. |
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| Authors: | WANG Xingguo HUANG Shaofeng LIU Qiankuan |
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| Abstract: | The characteristics of voltage modal transformation based on fault component in fault location and protection location are discussed in detail with regard to the changes of the system parameters and fault types. A new phase-selector based on voltage modal fault component is proposed. It uses voltage fault component and works fast after a fault occurs. A fault selection scheme is also proposed to solve problems of sensitivity as faults located on remote end of transmission lines. The simulation results of ATP and MATLAB show the feasibility of the scheme. |
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| Keywords: | protective relaying voltage modal fault component phase-selector |
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