| 引用本文: | 李功新,黄彦婕,江修波.基于自适应陷波滤波器的谐波分析法[J].电力自动化设备,2013,33(9): |
| LI Gongxin,HUANG Yanjie,JIANG Xiubo.Harmonic analysis based on ANF[J].Electric Power Automation Equipment,2013,33(9): |
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| 摘要: |
| 为提升介损角测量算法对干扰因素的抑制效果，提出了一种结合自适应陷波滤波器（ANF）的谐波分析法。ANF能有效滤除电压、电流波形中的整次谐波、间谐波和噪声分量，准确实现基波分量的跟踪及基波频率的提取。谐波分析法基于ANF提取的基波分量和基波频率进行介损角计算。仿真结果表明，结合ANF的谐波分析法在频率波动、谐波分量变化、白噪声影响、介损角真值变化、初相角变化等情况下都能取得较高测量精度。 |
| 关键词: 容性设备 介质损耗角 ANF 谐波分析 滤波器 仿真 |
| DOI： |
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| Harmonic analysis based on ANF |
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LI Gongxin1,2,3, HUANG Yanjie4, JIANG Xiubo2
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1.College of Electrical Engineering，Wuhan University，Wuhan 430072，China;2.College of Electrical Engineering and Automation，Fuzhou University，Fuzhou 350108，China;3.Fujian Electric Power Company Limited，Fuzhou 350000，China;4.Xiamen Electric Power Company，Fujian Electric Power Company Limited，Xiamen 361000，China
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| Abstract: |
| A harmonic analysis method based on ANF（Adaptive Notch Filter） is proposed to improve the interference suppression of dielectric loss angle measurement. ANF can effectively filter out the integer harmonics，inter-harmonics and noise contained in the voltage／current waveform，track the fundamental component and accurately extract the fundamental frequency，with which，the dielectric loss angle is calculated by harmonic analysis method. Simulative result indicates that，the method of harmonic analysis based on ANF has higher measurement precision in the conditions of frequency fluctuation，harmonic component variation，white noise，dielectric loss angle variation，initial phase angel variation and so on. |
| Key words: capacitive apparatus dielectric loss angle ANF harmonic analysis electric filters computer simulation |
