Huang Xiaoyun．Discussion on the application of NTP in the time synchronization of power automation devices[J]．Automation of Electric Power Systems，2005，29(15)：93-95(in Chinese)．
[3]
Leonov G A，Seledzhi S M．Programmable phase locked loops for digital signal processors[C]．Proceedings of International Conference on Physics and Control，2003，2：548-554．
[4]
Johannessen S．Time synchronization in a local area network[J]．IEEE Control Systems Magazine，2004，24(2)：61-69．
[5]
Kitaguchi Y，Machizawa A，Tsuru M，et al．Research of advanced time synchronous system with network support[C]．IEEE Pacific Rim Conference on Communications，Computers and Signal Processing，Victoria，Canada，2003，2：1036-1039．
Wang Keyou，Zhang Peichao，Yu Weiyong，et al．Research on a new fault information processing system using IEC61850 communication protocol[J]．Power System Technology，2004，28(10)：55-58(in Chinese)．
Gao Zhiyuan，Liu Changhong，Liu Ruiping．Disscussion on application of network-based timing technology in powerplant and substation automation systems[J]．Electric Power Automation Equipment，2006，26(7)：84-89(in Chinese)．
[21]
黄秉英．时间频率的精确测量[M]．北京：中国计量出版社，1986．
[22]
RFC 1305，network time protocol (version 3) specification, implementation and analysis[S]．1992．
