OPCUA及其事件模型在调度全域事件分析中的研究应用

Application of OPC UA and its event model in event analysis of dispatch domain

研究在调度全域事件分析中全面应用OPC UA标准。分析当前系统中使用的GES信息模型、服务接口及调度事件分类,研究通过OPC UA告警和条件等规范定义的OPC UA事件模型描述调度全域事件,及通过OPC UA事件服务提供事件访问支持。对OPC UA事件服务与GES在事件定义和服务能力方面的差异给出了说明。以CIM模式、OPC UA事件分类为基础,建立事件分析应用的地址空间模型。建立基于OPC UA规范的事件分析应用,在统一地址空间中管理电网模型及事件等数据,完成事件综合分析。调度全域事件分析遵循OPC UA规范,提升了标准化程度、通信效率和安全性。

The focus of this paper is on applying OPC UA specifications in event analysis of dispatch domain. GES information model, service interfaces used in current system and categories of dispatching events are analyzed first. Then using event model defined in OPC UA alarm and conditions specification to describe power dispatching events, and providing data access support through OPC UA event service are studied. The differences of event definition and capability of service between GES and OPC UA event services are also discussed. Based on CIM and OPC UA event categories, the address space model of event analysis application is set up. Then the event analysis application is developed to analyze events synthetically, with power grid model and event model managed in unified address space. The event analysis application conforms the OPC UA specification and the communication efficiency and security has been improved.