相比而言,IEC61850—9—2LE更加灵活,适应性也更强,在程序处理难度和软硬件资源开销方面也远大于IEC61850—9—1。作为智能电网基础的数字化变电站有很多有待解决的问题:光电互感器的稳定性和匹配性,合并单元的采样同步和传输同步,IEC61850—9—1/9—2标准的选择和可靠性问题,站内的许多重要数字信号无法进行各种数据流的监控问题,等等。目 In contrast, IEC61850-9-2LE more flexible, more adaptable, in terms of program processing difficulty and hardware and software resource costs is much larger than IEC61850-9-1. There are many problems to be solved in the digital substation as the basis of smart grid: the stability and matching of the photoelectric transformer, the sampling synchronization and transmission synchronization of the merging unit, the selection and reliability of the IEC61850-9-1 / 9-2 standard, Many important digital signals inside the station can not monitor various data streams, and so on. Head