数字化变电站中闭锁逻辑自动生成专家系统

An expert system of automatic interlocking schemes generation for digital substations

IEC61850中提出的变电站配置语言SCL是变电站专用描述语言,变电站配置文件SCD实现了对变电站一次系统拓扑、功能拓扑和通信拓扑的完整描述。提出了一种适用于数字化变电站的闭锁逻辑自动生成专家系统,以SCD文件为输入并从中获取变电站一次拓扑信息,基于专家系统开发工具CLIPS实现逻辑推理,采用面向对象的知识表示方法。系统中知识库独立于推理机,并实现了领域规则和控制规则的分离,这些使得本专家系统具有良好适应性并易于维护。通过大量典型变电站主接线的验证,证明了本专家系统的正确性和可行性。

The substation configuration language defined in the IEC 61850 is used to describe the primary system topology,function topology as well as communication topology of the overall substation.An expert system of automatic interlocking schemes generation for digital substations is proposed. T he expert system takes the SCD file as its input ,a nd extracts the primary system topology from the file. T he expert system development platform——CLIPS,i s used as the inference engine. T he object-oriented knowledge paradigm is adopted in the system. The knowledge base is independent of the inference engine,a nd the control rules are independent of the domain rules as well ,w hich make the expert system more adaptive and simple to maintain. The tests using many typical primary system topologies demonstrate the correctness and feasibility of the proposed expert system.