基于FPGA的电力系统时钟同步技术设计

Design of Power System Clock Synchronization Technology Based on FPGA

根据电力系统地理分布地域广以及对时钟同步要求精度高的原则,提出了一种GPS授时模块和IEEE1588协议相结合的时钟同步方案,该方案按地理因素将整个电力网络划分为若干个子网络,各个网络之间利用GPS接收模块实现时钟的同步,子网络内部采用IEEE1588协议实现时钟的同步,从而实现整电力网络的时钟同步;然后在FPGA平台上对精确时钟模块、GPS信息接收及处理模块、IEEE 1588协议的部分实现模块进行实现;最后通过系统误差验证表明本文所提出的方案切实可行。

According to the wide geographical distribution of power system as well as the principle of high precision clock synchronization requires, this paper puts forward a clock synchronization schema, which is combining GPS timing module and IEEE1588 protacal. In this protocal, the entire power network is divided into several sub- networks in terms of geographical factors, using GPS receiver module to achieve clock synchronization between the various networks and IEEE1588 clock synchronization protocol implementation within the network to achieve the entire power network clock synchronization. Then it achieves accurate clock module, GPS information receiving and processing module, and part of the realization of IEEE 1588 protocol modules in the FPGA platform. At last through the system it shows that the proposed scheme is feasible through validation errors.