文档介绍：第 32 卷第 21 期电网技术 Vol. 32 No. 21 2008 年 11 月 Power System Technology Nov. 2008 文章编号: 1000-3673 ( 2008 ) 21-0097-06 中图分类号: TM711 文献标志码: A 学科代码: 470·4051 基于 IEEE 1588 的数字化变电站时钟同步技术研究赵上林,胡敏强,窦晓波,杜炎森(东南大学电气工程学院,江苏省南京市 210096 ) Research of Time Synchronization in Digital Substation Based on IEEE 1588 ZHAO Shang-lin ,HU Min-qiang ,DOU Xiao-bo ,DU Yan-sen ( School of Electrical Engineering , Southeast University , Nanjing 210096 , Jiangsu Province , China ) ABSTRACT: IEEE 1588 defines a precision time protocol (PTP) worked measuremen t and control systems, which supports systemwide synchronization accuracy in the submicrosecond range. This paper introduces the principle of high precision clock synchronizat ion and the PTP clock models defined in IEEE 1588 standard. According to topological structure of work conforming to IEC 61850 standard, application schemes of IEEE 1588 in digital substation are proposed , and their advantages and disadvantages are also discussed. Then the redundancy configuration method of clock unit and its function implement are given. Clock synchronization error of IEEE 1588 standard is theoretically analyzed. At last, concrete systemwide application strategies of IEEE 1588 standard in area power network are