IEEE1588v2时间同步技术在新一代电力骨干网中应用研究

Application and Research of IEEE1588v2 Time Synchronization Technology in New Generation of Power Backbone Network

摘要:

针对传统的时钟同步方法已经无法适应新一代电力系统对时钟同步提出的更高要求,引入了一种能达到亚微秒级同步精度的1588v2时间同步技术,可以完全满足新一代电力系统中数字化变电站等电力二次终端设备高精度时间同步的要求;在对OTN和PTN进行同步技术分析的基础上,提出了基于OTN+PTN统一同步网络组网模型的应用场景,探讨了1588v2时钟信号在混合网络中的传递方式,并在现网中进行了时间同步性能测试验证,时间精度优于±100 ns;研究结果表明,基于1588v2时间同步技术的OTN+PTN组网模型能够满足电力系统业务的同步需求。

Abstract:

As the traditional clock synchronization technique has been unable to meet higher requirements of clock synchronization in new generation of power system, this paper introduces a method of 1588v2 time synchronization technology,which could reach sub-microsecond level of synchronization accuracy and completely meet the requirements of higher time synchronization precision proposed by power two terminal equipments such as digital substation in new generation of power system. Based on Synchronization Technology Analysis of OTN and PTN, it puts forward the application of the unified synchronous network model based on OTN and PTN,discusses the transmission mode of 1588v2 clock signal in the hybrid network, tests and verifies the synchronization performance of the existing network,time accuracy is better than ±100 ns. The research results show that OTN and PTN network model based on 1588v2 time synchronization technology can satisfy the synchronization requirements of power system operation.