IEEE1588协议在智能变电站应用的模型分析及测试研究

为了解决普通对时模式在分布式以太网络中对时精度低或专网施工复杂等问题，在智能变电站以太网络中引入IEEE1588时钟同步协议。分析和研究了IEEE1588普通时钟、边界时钟和透明时钟模型的校准特性和时钟属性，并搭建智能变电站仿真网络结构模型，进行模型验证和校准特性仿真测试验证，仿真测试结果表明IEEE1588协议应用在智能变电站以太网络中提高了时钟同步精度，简化了智能变电站网络结构，具有推广应用的现实价值。

Model analysis and testing of IEEE1588 protocol applied in smart substation

The ordinary synchronization mode in distributed Ethernet network shows low synchronization accuracy and complex network construction, so this paper introduces IEEE1588 clock synchronization protocol to the Ethernet network in smart substation. Calibration characteristics and clock attribute of the IEEE1588 common clock, boundary clock and transparent clock model are analyzed, and the simulation model of network structure of smart substation is built to conduct model verification and calibration characteristic simulation test. Results show that the IEEE1588 protocol used in Ethernet smart substation improves the precision of clock synchronization, simplifies the network structure of smart substation, and has practical value of popularization and application.