Noise analysis of a power-line communication channel in an LVDC smart grid concept

2013 IEEE 17th International Symposium on Power Line Communications and Its Applications Pub Date : 2013-03-24 DOI:10.1109/ISPLC.2013.6525822

A. Pinomaa, J. Ahola, A. Kosonen, P. Nuutinen

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引用次数: 17

Abstract

It has been shown that high-frequency (HF) band power-line communication (PLC) is a suitable data transmission method for the smart grid concept, namely a low-voltage direct current (LVDC) distribution system. In this paper, the PLC channel analysis in the LVDC system is continued with a detailed noise analysis. Noise signals from the terminals of PLC couplers are measured in the time domain. Noise power spectral densities (PSDs) are derived from the measured noise voltage, and the variation in the noise PSDs in the time domain is analyzed. The effects of noise on the performance of the HF band PLC are analyzed theoretically and by communication tests. The noise voltages are measured, and communication tests are carried out both in the LVDC laboratory system and in an LVDC field pilot system. The noise PSD is observed in the frequency band between 100 kHz and 30 MHz, which covers the band applied to the PLC in the channel. The results show that noise (mainly impulsive) in the channel has a major effect on the performance of the PLC.

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LVDC智能电网中电力线通信信道的噪声分析

研究表明，高频(HF)频段电力线通信(PLC)是智能电网概念，即低压直流(LVDC)配电系统的一种合适的数据传输方法。本文对LVDC系统中的PLC信道进行了分析，并对噪声进行了详细的分析。对PLC耦合器端发出的噪声信号进行时域测量。由测量的噪声电压导出了噪声功率谱密度，分析了噪声功率谱密度在时域内的变化规律。从理论和通信试验两方面分析了噪声对高频PLC性能的影响。测量了噪声电压，并在LVDC实验室系统和LVDC现场试验系统中进行了通信测试。噪声PSD在100 kHz和30 MHz之间的频带中观察到，该频带覆盖了信道中应用于PLC的频带。结果表明，信道中的噪声(主要是脉冲噪声)对PLC的性能有重要影响。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2013 IEEE 17th International Symposium on Power Line Communications and Its Applications

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