电力系统自动化2011，Vol.35Issue(21)：68-73,6.
考虑网络保护的广域测量系统通信时延分析
Communication Delay Analysis of WAMS Considering Network Protection Mechanisms
摘要
Abstract
Dynamic monitoring and real-time decision-making system have high demand on the real-time property for wide-area measurements.Synchronization algorithm characteristics of phasor data concentrator and delay mechanism of wide-area communication network are analyzed,and a communication delay calculation model for wide area measurement system（WAMS） is proposed.The influence of SDH network＇s fault on real-time communication is studied.The two-fiber bidirectional multiplex section protection ring is used as an example to analyze the relationship between data loss and switching time length.The effect of increasing protection path delay on the overall communication delay of WAMS,and the corresponding countermeasures are given.The test results on practical system verify the correctness of the developed model.The research provides certain references for WAMS service network construction,optimized PMU configuration and PDC optimal placement. This work is supported by National Natural Science Foundation of China（No.50877026）.关键词
广域测量系统/通信时延/等待时限/网络保护/倒换时间Key words
wide area measurement system（WAMS）/communication delay/waiting time/network protection/switching time分类
信息技术与安全科学引用本文复制引用
刘文霞,罗红,陈锦山..考虑网络保护的广域测量系统通信时延分析[J].电力系统自动化,2011,35(21):68-73,6.基金项目
国家自然科学基金资助项目 （）
