电力信息化系统时间同步技术研究与分析  

Research and analysis on time synchronizationtechnology of electric power information system

作　　者：林钰杰 吴丽贤 Lin Yujie;Wu Lixian(Foshan Power Supply Bureau of Guangdong Power Grid Co.,Ltd.,Guangdong Foshan,528051,China;Guangdong Zhuowei Network Co.,Ltd.,Guangdong Foshan,528299,China)

机构地区：[1]广东电网有限责任公司佛山供电局,广东佛山528051 [2]广东卓维网络有限公司,广东佛山528299

出　　处：《机械设计与制造工程》2022年第5期111-116,共6页Machine Design and Manufacturing Engineering

摘　　要：为解决电力信息化系统的显示模块运行不同步的问题,提升电力信息化系统模块工作的同步性,研究与分析了全新的电力信息化系统时间同步技术。首先通过提取影响电力信息化系统不同步的因素,确定晶振脉冲信号之间存在较大的时间差异;其次通过补偿晶振优化时间同步误差,基于双向时间同步法设置时间同步方案;再次用实验证明所提时间同步技术满足系统同步报文通信要求;最后从对比实验可知,使用文中所提技术的电力信息化系统的主时钟与从时钟之间的信号相位差在300 ns左右,与两种传统时间同步方法相比,时间同步效果分别提升了近2.67倍和2.00倍。可见新的时间同步技术,更能满足电力信息化系统的使用要求。In order to solve the problem of asynchronous operation of the display modules of the power information system and improve the synchronization of the power information system modules,a new time synchronization technology of the power information system is researched and analyzed.First,by extracting the factors that affect the asynchronous power information system,it is determined that there is a large time difference between the crystal oscillator pulse signals.Secondly,the time synchronization error is optimized by compensating the crystal oscillator,and the time synchronization scheme is set based on the bidirectional time synchronization method.It is proved by experiment again that the proposed time synchronization technology can meet the requirements of system synchronization message communication.Finally,it can be seen from the comparative experiments that the signal phase difference between the master clock and the slave clock of the power information system using the method proposed in this paper is about 300 ns.Compared with the two groups of traditional time synchronization methods,the time synchronization effect is improved by nearly 2.67 times and 2.00 times.It can be seen that the new time synchronization technology can better meet the requirements of the power information system.

关 键 词：电力信息化系统 时间同步技术 晶振补偿 时间同步误差 

分 类 号：TM76[电气工程—电力系统及自动化]