低压电力线载波通信的用电管理系统设计  

Design of Power Management System for Carrier Wave Communication in Low Voltage Power Line

作　　者：李宁 董亮 王新刚 王永超 张振源 黄大荣[2] LI Ning;DONG Liang;WANG Xingang;WANG Yongchao;ZHANG Zhenyuan;HUANG Darong(State Grid Xinjiang Electric Power Research Institute,Urumchi 830011,China;School of Information Science and Engineering,Chongqing Jiaotong University,Chongqing 400074,China)

机构地区：[1]国网新疆电力有限公司电力科学研究院,新疆乌鲁木齐830011 [2]重庆交通大学信息科学与工程学院,重庆400074

出　　处：《自动化仪表》2021年第6期77-81,共5页Process Automation Instrumentation

基　　金：国家自然科学基金资助项目(61304014);重庆市技术创新与应用发展专项重点基金资助项目(cstc2019jscx-mbdxX0015);国家电网公司总部科技基金资助项目(530HQ20001U);青岛鼎信通信股份有限公司基金资助项目(SGTYHT/17-JS-202)。

摘　　要：低压电力线载波通信具有覆盖区域广、接入方便、成本低等优点。基于低压电力线载波通信,设计了一种远程用电管理系统,包括通信模块、数据采集模块、任务透传模块以及时钟管理模块。首先,在分析电力线载波通信的信道特性的基础上,建立起完善的、基于电力线载波通信的系统架构,有效改善了数据稳定传输且可靠通信的问题。其次,针对主站参数下发中效率不高的问题,采用透明任务传输技术,提升了信道利用率,获取的信息具有实时、全方位、准确、可靠的特点。最后,针对大区域范围内时钟同步难题,开展了时钟同步管理技术的研究。分别从主站与终端间校时、终端与电表间校时切入,实现了远程时钟校准功能。该系统设计有效提高了用电管理系统的合理性和可靠性,在实现精准的数据采集、可靠的电网质量监测等方面提供了一定的借鉴作用。Low voltage power line carrier wave communication has the advantages of wide coverage region,easy connection and low cost.A remote power management system is designed based on low voltage power line communication including the modules of communication,data acquisition,mission through and clock management.Firstly,on the basis of analyzing the channel characteristics of power line carrier communication,a perfect system architecture based on power line carrier communication is established,which effectively improves the problem of stable data transmission and reliable communication.Secondly,in view of the low efficiency of the master station parameter distribution,transparent task transmission technology is adopted to improve the channel utilization,and the information obtained has the characteristics of real-time,all-round,accurate and reliable;Finally,aiming at the problem of clock synchronization in a large area,the research of clock synchronization management technology is carried out,which starts from the timing calibration between the master station and the terminal,and the timing calibration between the terminal and the meter,and realizes the remote clock calibration function.The design of the system effectively improves the rationality and reliability of the power management system,and provides a certain reference in the realization of accurate data acquisition and reliable power grid quality monitoring.

关 键 词：低压电力线载波通信 远程用电管理系统 通信模块 任务透传 时钟同步管理 时钟校准 

分 类 号：TH702[机械工程—仪器科学与技术]