智能电网继电保护在线整定计算系统设计与实现

发布时间：2018-05-02 00:13

本文选题：继电保护 + 在线整定　；参考：《电子科技大学》2015年硕士论文

【摘要】：继电保护定值的准确性对维持电网安全稳定运行具有重要意义,保护定值的在线整定是智能电网发展的必然要求。本文基于电网调度普遍采用的能量管理系统(EMS),提出了一种智能电网继电保护在线整定计算系统的工程化设计方法。结合成都电网开展了工程实践,验证了所提出的智能电网继电保护在线整定计算系统工程化设计方法的可行性和可推广性。论文主要工作及创新点如下:1)采用面向对象技术和C/S结构,研究了基于能量管理系统的智能电网继电保护在线整定计算系统的工程化设计方法。保护定值在线整定的前提和基础是要能获取实时、准确的电网拓扑图,EMS现已在国内各级电网调度中普遍采用,其能为继电保护定值整定提供良好的数据平台,有利于保证定值的正确性。本文研究的工程化设计方法直接从EMS获取数据,避免了电网基础数据的繁琐的录入工作,更能满足在线运行的需要。2)探讨了基于面向对象技术的整定计算系统和EMS的数据接口开发方法,实现了整定计算系统与EMS系统进行接口,从而获取EMS系统中电网模型及实时运行数据;同时能够实现整定计算系统与故障信息系统联系的接口,完成定值整定系统和故障信息系统之间的通讯,实现定值的在线整定。3)提出了配合运行方式调整的多套定值自动切换方法。为了使自动切换更加实用与易于维护,基于C/S结构在本地客户端中穷举起所有可能的拓扑结构,来表示开环点、计划检修、系统故障等情况,产生式的表现了各个情况下的不同内容,并传输到服务器,以备相同运行方式出现时可以快速调用,并以图形化的方式将各个方式生成配置图,供用户使用。
[Abstract]:The accuracy of relay protection setting is of great significance to maintain the safe and stable operation of power network. The on-line setting of protection setting is the inevitable requirement of the development of smart grid. Based on the energy management system (EMSS) which is widely used in power grid dispatching, an engineering design method of on-line setting calculation system for smart grid relay protection is presented in this paper. Based on the engineering practice of Chengdu Power Grid, the feasibility and extensibility of the proposed engineering design method for on-line setting calculation system of smart grid relay protection are verified. The main work and innovation of this paper are as follows: (1) based on the object-oriented technology and C / S structure, the engineering design method of the intelligent power grid relay protection on-line setting calculation system based on the energy management system is studied. The premise and foundation of on-line setting of protection and value is to obtain real-time, accurate topology diagram EMS is widely used in all levels of power network dispatching in China, which can provide a good data platform for setting the value of relay protection. It is helpful to ensure the correctness of the fixed value. The engineering design method studied in this paper obtains the data directly from EMS, which avoids the tedious input work of the basic data of the power network. The development method of data interface between setting computing system based on object-oriented technology and EMS is discussed, and the interface between setting computing system and EMS system is realized. In order to obtain the power network model and real-time operation data in EMS system, the interface between the setting calculation system and the fault information system can be realized at the same time, and the communication between the value setting system and the fault information system can be completed. On-line tuning. 3) A multi-set automatic switching method is proposed to adjust the operation mode. In order to make automatic switching more practical and easy to maintain, based on the C / S structure, all possible topologies are lifted in the local client to represent open loop points, scheduled overhaul, system failures, etc. The generative representation of the different content in each case, and transferred to the server, in case the same running mode can be quickly called, and graphically generated configuration diagram for the user to use.
【学位授予单位】：电子科技大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TM77;TP311.52

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