| 金属氧化物避雷器在线监测指标研究 |
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| 引用本文： | 曹洪亮,杨仲江,任婧,姜苏,李鹏飞.金属氧化物避雷器在线监测指标研究[J].中国电力,2015,48(8):80-85. |
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| 作者姓名： | 曹洪亮 杨仲江 任婧 姜苏 李鹏飞 |
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| 作者单位： | 1． 南京信息工程大学 中国气象局气溶胶与云降水重点开发实验室，江苏 南京 210044；2． 南京信息工程大学 大气物理学院，江苏 南京 210044； 3. 中国民用航空宁波空中交通管理站，浙江 宁波 315154 |
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| 基金项目： | 国家重点基础研究发展计划（973计划）资助项目（2014CB441405）；国家自然科学基金资助项目（41075025） |
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| 摘 要： | 金属氧化物避雷器（MOA）对于电力系统安全运行起着重要作用，需要寻找合适指标对其老化实现实时的在线监测。通过Matlab仿真方法对目前存在的2种不同类型的基波阻性电流和三次谐波阻性电流进行计算和对比分析，结果表明：选择基波电压作用下产生的基波阻性电流和三次谐波阻性电流能够更准确地反映MOA老化情况。并根据Fryze瞬时功率定义，提出了基波电压作用下基波阻性电流简便求解算法，通过仿真论证了该算法的有效性。
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| 关 键 词： | MOA 在线监测 指标 谐波电压 基波阻性电流 容性电流 |
| 收稿时间： | 2015-02-22 |
Study on On-Line Monitoring Index of MOA |
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| CAO Hongliang,YANG Zhongjiang,REN Jing,JIANG Su,LI Pengfei.Study on On-Line Monitoring Index of MOA[J].Electric Power,2015,48(8):80-85. |
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| Authors: | CAO Hongliang YANG Zhongjiang REN Jing JIANG Su LI Pengfei |
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| Affiliation: | 1. Key Laboratory for Aerosol-Cloud-Precipitation of China Meteorological Administration, Nanjing University of Information Science & Technology, Nanjing 210044, China; 2. School of Atmospheric Physics, Nanjing University of Information Science and Technology,
Nanjing 210044, China; 3. Ningbo Air Traffic Manage Station of Civil Aviation, Ningbo 315154, China |
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| Abstract: | The metal oxide arrester (MOA) plays a very important role in the safe operation of power systems. In order to find an appropriate indicator that can reflect the degradation of MOA, a comparative study is made through Matlab simulation on the existing fundamental harmonic resistant current and the third harmonic resistant current. The result shows that the resistant current with fundamental harmonic component and the third harmonic component produced by the fundamental voltage can better reflect the degradation of MOA. In addition,based on Fryze’s power definition, a simple algorithm which can calculate the fundamental harmonic current produced by the fundamental voltage is proposed and its efficiency is validated by simulation. |
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| Keywords: | MOA online monitoring index harmonic voltage fundamental harmonic resistant current capacitive current |
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