面向继电保护定值在线校核的综合数据平台的构建及其应用

发布时间：2019-04-01 11:41

【摘要】：电网多次大小事故表明，电网事故的发生或扩大往往与继电保护的不正确动作关系密切。电网规模的扩大化和运行方式的多样化，使继电保护定值在线校核及预警愈发成为电网运行人员工作关注的重点。在继电保护定值在线校核及预警系统的开发应用中，构建集成多个异构信息系统电网参数和图形数据的综合数据平台是实现继电保护定值在线校核及预警的基础，继电保护定值在线监测则是基于该综合数据平台的一个典型应用。本文围绕继电保护定值在线校核及预警系统的研究，对异构信息系统集成接口和综合数据平台数据发布、异构信息系统图形融合、继电保护定值在线监测三方面的内容进行了研究：在异构信息系统集成接口和综合数据平台数据发布方面，提出了基于WebService技术的异构信息系统数据集成方法。该方法在分析继电保护定值在线校核及预警系统的功能和数据要求的基础上，采用WebService技术作为各电力自动化系统集成接口以提高综合数据平台建设的可扩展性，实现了系统之间粗粒度松耦合的连接要求。同时，，综合数据平台提供了继电保护定值在线校核、在线监测的数据发布接口，能实现不同部门所关心数据的自定义，提高了系统建设的实用性。在异构信息系统图形融合方面，提出了基于SVG(Scalable Vector Graphics)的继电保护定值在线校核及预警系统图形建模和融合方法。该方法从整定计算系统中导出SVG的一次接线图形，复用SVG图形的预处理故障信息系统厂站内部图，实现了继电保护定值在线校核及预警系统一二次系统图形建模。最后，通过调用SVG文件中JavaScript函数实现定值在线校核及预警系统图形的动态刷新与可视化。在继电保护定值在线监测方面，提出了基于IEC61850建模的继电保护定值在线监测方法。该方法采用基于IEC61850建模实现从故障信息系统获取定值数据文件，提高了在线监测系统的通用性和扩展性。通过对自定义继电保护整定计算系统定值单进行解析获取下发定值。最后，提出了继电保护定值在线监测策略，总结出继电保护定值在线监测的结果输出方法。
[Abstract]:The multiple-size accident of the power grid indicates that the occurrence or expansion of the power grid accident is often closely related to the incorrect operation of the relay protection. The expansion of the scale of the power grid and the diversification of the mode of operation make the on-line check and early warning of the setting value of the relay protection become the focus of the work of the operation personnel of the power grid. in that development and application of the on-line check and early warning system of the relay protection constant value, the comprehensive data platform for building the network parameter and the graphic data of the integrated multiple heterogeneous information system is the foundation for realizing on-line check and early warning of the relay protection fixed value, The on-line monitoring of relay protection settings is a typical application based on the comprehensive data platform. In this paper, on the basis of the on-line checking and early warning system of relay protection fixed value, the contents of the integrated interface of the heterogeneous information system and the data distribution of the comprehensive data platform, the graphic fusion of the heterogeneous information system and the on-line monitoring of the setting value of the relay protection are studied. The data integration of heterogeneous information system based on WebService technology is presented in the aspects of heterogeneous information system integration interface and comprehensive data platform data release. The method is based on the analysis of the on-line check of the setting value of the relay protection and the function and data requirements of the early warning system, and adopts the WebService technology as the interface of each power automatic system integration to improve the expandability of the construction of the comprehensive data platform, and realizes the connection of loose coupling between the system and the system. At the same time, the comprehensive data platform provides the on-line check and on-line monitoring data distribution interface for relay protection fixed value, which can realize the customization of the data of different departments and improve the utility of the system construction. In the aspect of heterogeneous information system graphics fusion, the on-line check of the setting value of relay protection based on SVG (Scalable Vector Graphics) and the modeling and melting of the early warning system are put forward. The method comprises the following steps of: deriving a primary wiring pattern of the SVG from a setting calculation system, multiplexing an internal diagram of a pre-processing fault information system of the SVG image, and realizing an on-line check of the relay protection fixed value and a secondary system diagram of the early warning system; and finally, realizing the dynamic refreshing and the dynamic refreshing of the fixed value on-line checking and the early warning system graph by calling the JavaScript function in the SVG file, In the aspect of the on-line monitoring of the setting value of the relay protection, the setting value of the relay protection based on the IEC61850 model is put forward. The method adopts the IEC61850 model to realize the acquisition of the fixed value data file from the fault information system, and the general purpose of the on-line monitoring system is improved. Performance and expansibility. The setting value of the self-defined relay protection setting calculation system is analyzed and obtained. Finally, the on-line monitoring strategy of relay protection setting value is put forward, and the on-line monitoring of relay protection setting value is summarized.
【学位授予单位】：华中科技大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TM77

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