| 变压器局部放电在线检测中的抗干扰技术 |
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| 引用本文： | 汤放奇.变压器局部放电在线检测中的抗干扰技术[J].高电压技术,2005,31(3):51-52,64. |
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| 作者姓名： | 汤放奇 |
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| 作者单位： | 长沙理工大学电气与信息工程学院,长沙410076 |
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| 摘 要： | 抑制干扰是变压器局部放电在线监测的关键技术,为此综述和分析了变压器局部放电在线监测中的各种干扰信号特征、各种抗干扰技术(如快速傅立叶变换法、小波变换法、自适应数字滤波等)及其效果,还介绍了实际局部检测中分层式抑制干扰模式。
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| 关 键 词： | 变压器 局部放电 在线监测 干扰 |
| 文章编号： | 1003-6520(2005)03-0051-02 |
Study of Interference Suppression in Partial Discharge On-Line Monitoring for Transformers |
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| Tang Fangqi.Study of Interference Suppression in Partial Discharge On-Line Monitoring for Transformers[J].High Voltage Engineering,2005,31(3):51-52,64. |
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| Authors: | Tang Fangqi |
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| Affiliation: | Tang Fangqi (College of electrical & Information Engineering, Changsha University of Scien ce and Technology, Changsha 410076, China) |
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| Abstract: | To suppress interference is a critical technique for p artial discharge on-line monitoring of transformers. Based on the analysis of v arious interference in partial discharge on-line monitoring of transformers, th e paper studies some various anti-interference techniques which include FFT, wa velet analysis, digital filter technique and so on, and gives a multi-layer int erference suppression model in partial discharge on-line monitoring of transfor mers. The results of computer simulation prove the effectiveness of rejec ting periodic interference, pulse interference and white noise. |
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| Keywords: | transformers partial discharge on-line monitoring interference |
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