Research on On-Line Monitoring Scheme of Power Time Synchronization System

doi:10.11930/j.issn.1004-9649.2015.12.12.3

Abstract

Abstract: In order to solve problem of lacking of control measures of time synchronization system and timed devices in substations, the applicability of relative and absolute monitoring methods are analyzed. The relative monitoring method is suitable for time synchronization system with Precision Time Protocol(PTP) signal, while absolute monitoring method is suitable for independent time synchronization systems. A time synchronization monitoring system architecture is proposed in order to transfer monitoring signal in electric power dispatching data network based on current system situation and absolute monitoring method. The proposed method uses time monitoring unit equipment to monitor timed devices status in plant, station and secondary equipment. An implementation plan of northern Hebei power grid is also presented.

Key words: time synchronization, on-line monitoring, time monitoring unit, data network, implementation plan

CLC Number:

TN76

LI Xin, TENG Ling, XIONG Hongzhang, GAO Qiang, LU Lifeng, WANG Yang. Research on On-Line Monitoring Scheme of Power Time Synchronization System[J]. Electric Power, 2015, 48(12): 12-15.

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URL: https://www.electricpower.com.cn/EN/10.11930/j.issn.1004-9649.2015.12.12.3

https://www.electricpower.com.cn/EN/Y2015/V48/I12/12

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