智能变电站二次设备运维关键技术研究

发布时间：2018-09-06 12:08

【摘要】：随着IEC61850标准的应用推广,智能变电站运行水平迈向了更高的层次。在智能变电站中,二次回路由硬接线方式转变为虚回路方式,以过程层信息共享方式解决了原有二次回路的很多问题。然而,当前智能变电站实践主要聚集在新型装置和统一报文规范的技术研究,而针对涉及新型模式下的智能变电站运维模式的影响以及全过程的管控方案研究不足,以致目前的智能变电站无法从根本上带给变电站的运维、安全及经济方面实在的变化,这就是约束当前智能变电站只是处于“试点”环节的根本问题。针对智能变电站取消硬电缆回路的特点,本文对二次虚回路状态监测、SCD文件管控等二次设备运维关键技术进行了深入的探讨和研究。本文首先分析了国内外智能变电站运维的现状,指出了目前变电站的运维模式存在的问题。在此基础上,提出了本课题研究的主要内容和方法以及研究的意义。然后阐述了智能变电站的基本结构,根据智能变电站的架构和功能特点分析了二次设备运维系统体系。通过对二次虚链路组网形式、可视化监视以及二次回路的物理链路拓扑和虚实链路的映射关系进行研究,利用二次设备虚实回路建模和拓扑识别的方法,给二次虚回路状态监视系统的设计提供数据基础。接着在SCD文件记录的与智能变电站安全稳定运行相关的大量关键信息(包括变电站一次设备模型与电气拓扑信息、功能视图、通信视图、产品视图、数据流等)的基础上,根据智能变电站二次虚回路集成配置的SCD文件管控方法,结合实际的模型展开了一定的应用分析。最后,通过现场变电站配置文件对二次设备虚回路状态监测和SCD文件管控系统进行测试,测试结果表明,该系统能够实现智能变电站通信配置过程的可视化。
[Abstract]:With the application of IEC61850 standard, the operation level of intelligent substation moves to a higher level. In intelligent substation, the secondary circuit is changed from hard wiring mode to virtual circuit mode, and many problems of the original secondary circuit are solved by process layer information sharing. However, the current practice of intelligent substation is mainly focused on the technical research of new devices and unified message specification. However, there is a lack of research on the influence of the operation and maintenance mode of intelligent substation under the new mode and the control scheme of the whole process. As a result, the current intelligent substation can not fundamentally bring substation operation and maintenance, safety and economic aspects of the real changes, this is the restriction of the current intelligent substation is only in the "pilot" link of the fundamental problem. In view of the characteristics of canceling hard cable loop in intelligent substation, the key techniques of secondary equipment operation and maintenance, such as secondary virtual loop state monitoring and SCD file control, are deeply discussed and studied in this paper. This paper first analyzes the present situation of intelligent substation operation and maintenance at home and abroad, and points out the problems existing in the operation and maintenance mode of substation at present. On this basis, the main contents and methods of this research and the significance of the research are put forward. Then the basic structure of intelligent substation is expounded, and the system of secondary equipment operation and maintenance is analyzed according to the structure and function of intelligent substation. Based on the study of the network form of the secondary virtual link, the visual monitoring and the mapping relationship between the physical link topology and the virtual link of the secondary loop, the method of modeling and topology identification of the virtual and real circuit of the secondary equipment is used. It provides the data basis for the design of the secondary virtual loop state monitoring system. Then, on the basis of a large number of key information (including substation primary equipment model and electrical topology information, function view, communication view, product view, data flow, etc.) recorded in the SCD file, which are related to the safe and stable operation of the intelligent substation, and so on. According to the SCD file control method of intelligent substation secondary virtual loop integrated configuration, the application analysis is carried out in combination with the actual model. Finally, the virtual loop state monitoring and SCD file control system of secondary equipment is tested by the substation configuration file in the field. The test results show that the system can realize the visualization of communication configuration process in intelligent substation.
【学位授予单位】：湖北工业大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TM63;TM507

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