基于图谱理论的变电站二次系统图纸活化技术研究与应用实践

Research and application of drawing activation technology of substation secondary system based on graph theory

针对目前变电站二次系统原始图纸信息单一、数字化程度不高等问题,提出了基于图谱理论的变电站二次图纸活化技术。该方法将电气图元拓扑化,建立图元的拉普拉斯矩阵来表征图的结构特征,通过相似矩阵算法实现图元匹配识别,利用广度优先搜索算法实现元件连接关系提取,从而确定二次图纸元件特征、回路属性和逻辑连接。以在线监视与诊断、模型文件辅助设计以及仿真培训三方面的应用为例,详细探讨了变电站二次系统活化图纸在运维检修中的应用实践,进一步证明了该方法的创新性和有效性。

Aiming at the problems that the original drawing information is single and digitization of secondary system of substation is low,the activation technology of secondary drawing of substation based on the graph theory is proposed in this paper.This method topologies the electrical elements,establishes the Laplace matrix of the elements to represent the structural features of the diagram,realizes the matching and recognition of the elements by the similarity matrix algorithm,and realizes the extraction of the connection relation of the elements by the breadth first search algorithm.And the component features,circuit attributes and logical connection of the secondary drawing are determined.Taking the application of online monitoring and diagnosis,model file aided design and simulation training as an example,this paper discusses the application practice of activation drawing of secondary system in operation and maintenance in detail,and further proves the innovation and effectiveness of the proposed method.