基于边缘计算的变电站风险预警管控系统设计

Design of substation risk early warning and control system based on edge calculation

为实现变电站风险预警的实多维度管控,设计基于边缘计算的变电站风险预警管控系统。感知层通过物联网设备采集变电站设备的运行相关数据,利用边缘设备和外部设备之间的通信传送数据至边缘层;边缘层接收数据后,通过通信协议解析该数据,完成数据的一致性,包装云服务下行数据传送至云计算层;云计算层利用云计算计算和分析变电站设备数据并传送至应用层;应用层采用支持向量机算法建立风险预警机制划分风险数据的属性、获取预警值,在此基础上,通过Logistic回归风险预测模型预测预警值对应的风险情况,得出故障发生概率完成变电站风险预警,同时将预警结果呈现在可视化界面,并由控制通道管控相应的风险预警。测试结果显示:系统的通信抖动结果均在15 ms以下,能够实现风险概率的计算,获取变电站各类风险预警数量,具备良好的工作能效,能多维度实现变电站风险预警管控。

In order to realize real-time and multi-dimensional control of substation risk early warning,a substation risk early warning and control system based on edge computing is designed.The sensing layer collects the operation data of substation equipment through the Internet of Things equipment,and transmits the data to the edge layer through the communication between edge equipment and external equipment.After receiving data,edge layer parses the data through the communication protocol to complete data consistency,and packages cloud services downstream data sending to the cloud computing layer.The layer uses cloud computing to compute and analyze substation equipment data and transmit it to the application layer.The application layer adopts support vector machine(SVM)algorithm to establish a risk early warning mechanism,divide the risk data attribute,and obtain warning value.Based on this,the risk situation corresponding to the early warning value is predicted by the logistic regression risk prediction model,and the probability of failure is obtained to complete the substation risk warning.Meanwhile,the early warning results are presented on the visual interface,and the corresponding risk warning is controlled and controlled by the control channel.The test results show that the communication jitter results of the system are all below 15 ms,which can realize the calculation of risk probability,obtain the number of various risk warnings of the substation,have good work energy efficiency,and realize the multi-dimensional risk warning and control of the substation.