基于IEC61850标准的IED建模分析

IED modeling analysis based on IEC61850 standard

IEC61850标准为不同生产厂商的智能电子设备(IED)之间实现互操作性和系统无缝集成提供了途径,但是IEC61850保护建模在实际工程应用中有不相适应的地方。在介绍IEC61850面向对象建模技术和IED建模思想的基础上,总结了IED建模在工程应用中遇到的难点问题:软压板建模、逻辑节点建模、数据扩展、GOOSE建模和逻辑设备建模,并结合国家电网公司最新发布的《DL/T860实施技术规范》,针对上述难点问题提出了一些有效可行的解决方法。给出了中压线路保护装置的建模实例,能够比较好地满足数字化变电站建设的工程需要。

IEC61850 standard provides a means to implement the interoperability between intelligent electronic devices （IED） from different manufacturers and the systems seamless integration,but protection modeling of IEC61850 is incompatible with the practical engineering application.On the basis of introducing IEC61850 object-oriented modeling techniques and IED modeling ideas, this paper summarizes the encountered problems of the IED modeling in engineering application：soft plate modeling, logic node modeling, data expansion, G OOSE modeling and logical device modelining. Combining with National Grid’s latest release ＂Technical Specifications of DL/T 860 in Engineering＂, some effective and feasible solutions have been proposed to solve these difficult problems, and a middle-voltage line protection model instance is given,which is able to meet the project needs of digital substation construction.