The Research of Precision Time Protocol IEEE 1588

The IEEE standard precision time protocol(PTP) IEEE 1588 is at present a very comprehensive solution for highly precise time synchronization in an Ethernet network for its many advantages over the traditional power station time synchronization protocol,such as the network time protocol(NTP).The core algorithms of the IEEE 1588,the best master clock(BMC) algorithm and the local clock synchronization(LCS) algorithm,are analyzed.A solution is proposed for the situation in which the protocol is incapable of meeting its assumptions in actual application.The protocol is finally realized and tested based on an ARM9200 platform in laboratory surroundings,with evidently better accuracy than NTP.The research is of great significance for actual power system application.