| 基于自适应最小均方误差算法实现10kV电力线通信的噪声对消 |
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| 引用本文： | 高强,张君,郑确. 基于自适应最小均方误差算法实现10kV电力线通信的噪声对消[J]. 电网技术, 2009, 0(18) |
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| 作者姓名： | 高强 张君 郑确 |
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| 作者单位： | 华北电力大学通信与信息工程学院;二滩水电开发有限责任公司; |
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| 摘 要： | 首先介绍了中压电力线信道噪声通用模型,对现场采集的噪声进行互相关系数计算,并采用对称分量法进行相关性分析,得出三相电力系统相间噪声具有一定相关性的结论。改变单相传输模式,根据两相噪声的一致性特点,提出基于自适应最小均方误差(least-mean-square error,LMS)算法实现中压电力线通信(medium voltage power line communication,MV-PLC)的噪声对消。自适应LMS算法虽然收敛速度较慢,但是计算量小,易于实现。仿真结果表明,噪声对消方法的采用有效改善了10kV中压电力线的信噪比,为10kV配网自动化系统采用载波通信技术提供了新的实现途径。
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| 关 键 词： | 中压电力线通信 中压配电网 最小均方自适应滤波 噪声对消 信道噪声 |
Implementing Noise Cancellation of 10 kV Power Line Communication Based on Adaptive Least-Mean-Square Error Algorithm |
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| GAO Qiang,ZHANG Jun,ZHENG Que. Implementing Noise Cancellation of 10 kV Power Line Communication Based on Adaptive Least-Mean-Square Error Algorithm[J]. Power System Technology, 2009, 0(18) |
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| Authors: | GAO Qiang ZHANG Jun ZHENG Que |
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| Affiliation: | GAO Qiang1,ZHANG Jun1,ZHENG Que2 (1.School of Electrical and Electronic Engineering,North China Electric Power University,Baoding 071003,Hebei Province,China,2.Ertan Hydropower Development Co.,Ltd.,Chengdu 610000,Sichuan Province,China) |
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| Abstract: | In this paper firstly the general channel noise model for medium-voltage power line communication is presented. Using symmetrical component method,the correlation analysis on calculated results of cross correlation coefficient of on-site collected noise is performed and the conclusion is obtained: the interphase noise of three-phase power transmission line is relevant a certain extent. Changing the general idea of the noise elimination based on single-phase line and based on the feature that the noise of tw... |
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| Keywords: | medium voltage power line communication (MV-PLC) medium voltage distribution networks LMS adaptive filtering noise cancellation channel noise |
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