基于单频通信的低压电力线通信系统设计与实现

doi:10.11930/j.issn.1004-9649.202207044

摘要/Abstract

摘要： 为了提高低压电力线通信的可靠性，提出了一个将单频通信和低压电力线通信相融合的低压电力线载波单频通信系统。该系统在基于Q/GDW 11612—2016标准的物理层基础上，只需对数据链路层进行修改从而缩短了信号的传播时间。同时，提出一种基于分数型锁相环的间隔式时钟同步算法，避免了时钟的过度调节，实现了系统中单频通信时钟同步的高精度调整。仿真及实际测量结果表明：所提出的时钟同步算法具有很高的时钟精度；由于低压电力线载波单频通信系统融合了两者互补的优势，相比于电力线通信，该系统具有更高的通信可靠性。验证了低压电力线载波单频通信系统是实际可行可靠的。

关键词: 低压电力线通信, 单频通信, 可靠性, 时钟同步, 锁相环

Abstract: In order to improve the reliability of low voltage power line communication, a low voltage power line carrier single frequency communication system is proposed, which integrates the single frequency communication and low-voltage power line communication. Based on the physical layer of Q/GDW 11612—2016 standard, the system only needs to modify the data link layer, thus shortening the signal propagation time. At the same time, a fractional PLL based interval clock synchronization algorithm is proposed to avoid the excessive adjustment of the clock and realize the high-precision adjustment of the single frequency communication clock synchronization in the system. The simulation and actual measurement results show that the proposed clock synchronization algorithm has high clock accuracy; and the low voltage power line carrier single frequency communication system has a higher communication reliability compared with power line communication due to its integration of the complementary advantages of the two. It can be seen that the low-voltage power line carrier single frequency communication system is practical and reliable.

Key words: low voltage power line communication, single frequency communication, reliability, clock synchronization, phase locked loop(PLL)

张培玲, 赵可可. 基于单频通信的低压电力线通信系统设计与实现[J]. 中国电力, 2023, 56(3): 118-127,136.

ZHANG Peiling, ZHAO Keke. Design and Implementation of Low Voltage Power Communication System Based on Single Frequency Communication[J]. Electric Power, 2023, 56(3): 118-127,136.

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链接本文: https://www.electricpower.com.cn/CN/10.11930/j.issn.1004-9649.202207044

https://www.electricpower.com.cn/CN/Y2023/V56/I3/118

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