| 基于独立分量分析和互信息的多谐波源定位 |
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| 引用本文： | 苗长新,冯学俊,马士亮,李璇,汤家升,刘鹏.基于独立分量分析和互信息的多谐波源定位[J].电测与仪表,2014,51(11). |
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| 作者姓名： | 苗长新 冯学俊 马士亮 李璇 汤家升 刘鹏 |
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| 作者单位： | 中国矿业大学信息与电气工程学院;山东能源枣庄矿业有限责任公司; |
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| 摘 要： | 针对独立分量分析算法在谐波源定位中估计得到的各次谐波电流与谐波源电压不存在固定的对应关系,提出了一种基于独立分量分析(ICA)算法和互信息(MI)理论的多谐波源定位方法。独立分量分析算法用于估计由谐波源产生的谐波电流大小;互信息理论根据估计得到的谐波电流和母线电压之间的相关信息程度,精确确定多谐波源的位置。为了验证此方法的可行性,在PSCAD环境中,对有多个谐波源的IEEE-14母线网络进行了仿真。结果表明,这种方法在对电网参数未知的情况下,能够准确判断出多个谐波源的位置。
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| 关 键 词： | 独立分量分析 互信息 谐波源定位 多谐波源 PSCAD |
| 收稿时间： | 2013/11/1 0:00:00 |
| 修稿时间： | 2013/11/1 0:00:00 |
Location of Multi-harmonic Sources Based on Independent Component Analysis and Mutual Information |
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| MIAO Chang-xin,FENG Xue-jun,MA Shiliang,LI Xuan,TANG Jia-sheng and LIU Peng.Location of Multi-harmonic Sources Based on Independent Component Analysis and Mutual Information[J].Electrical Measurement & Instrumentation,2014,51(11). |
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| Authors: | MIAO Chang-xin FENG Xue-jun MA Shiliang LI Xuan TANG Jia-sheng and LIU Peng |
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| Affiliation: | China University of Mining and Technology,College of Information and Electrical Engineering, China University of Mining and Technology,Shandong Energy Zaozhuang Mining Co., Ltd.,College of Information and Electrical Engineering, China University of Mining and Technology,College of Information and Electrical Engineering, China University of Mining and Technology,College of Information and Electrical Engineering, China University of Mining and Technology |
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| Abstract: | In allusion that the relationship between the harmonic current estimated by ICA and the harmonic source voltage is not fixed, a multi-harmonic source localization method based on independent component analysis (ICA) algorithm and mutual information (MI) theory is proposed. ICA algorithm is applied to estimate the harmonic currents. According to the relevant information between the estimated harmonic current and bus voltage, MI theory accurately locates harmonic sources. PSCAD simulations were made to locate multi-harmonic sources in the IEEE 14 bus system. Results show that this approach can accurately locate multiple harmonic sources without knowledge of the network parameters. |
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| Keywords: | Independent component analysis Mutual information Harmonic source location Multi-harmonic sources PSCAD |
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