IEC61850信息建模的反思与变通

信息建模是IEC61850的关键部分,该标准采用抽象逻辑节点及面向对象建模等全新技术,完全不同于传统的信息分类处理及二维表方法.根据目前电力系统的实际情况,认为IEC61850信息建模方法的适用性值得反思,传统的二维表方法对应了现阶段电力系统专业划分的垂直管理模式,且具备关系型数据库理论的完备支撑;而IEC61850的面向对象抽象建模方法更适用于将来的数字化变电站领域.提出在当前应用中应该进行必要的变通,在装置中结合物理模块组成合理使用通用输入输出(GGIO)模型逻辑节点,面向对象抽象建模的功能和信息模型的表达以逻辑节点实现.这样就能兼顾IEC61850的互操作性与实施方便性2个方面的需求,是当前较好的建模解决方案.

Reconsideration and compromise of IEC61850 information modeling

Information modeling is the essential part of IEC61850,which adopts the abstract logical node and object - oriented modeling,different from the traditional classified message processing and two - dimensional table. Under the conditions of present power systems,it is worth to reconsider the applicability of IEC61850 information modeling. The traditional two - dimensional table suits for the specialized management pattern of power system and is completely supported by the relational database theory. The IEC61850 object - oriented abstract modeling is more suitable for future digitization substations. Compromises are necessary:rational use of GGIO logical nodes according to the physical device modules;and realization of object - oriented abstract modeling function and information modeling expression by logical nodes. It would be,at present,a better modeling solution to meet the requirements for both interoperability and convenient implementation of IEC61850.