基于层次分析法的继电保护专家系统研究

发布时间：2018-04-20 03:10

本文选题：继电保护 + 层次分析法　；参考：《浙江大学》2014年硕士论文

【摘要】：继电保护系统是电力系统的重要组成部分,对保证电力系统安全稳定运行和系统中重要组件的正常工作有重要意义。在继电保护系统的运行过程中会出现一些缺陷,使系统不能有效工作,有些甚至直接影响到电力系统的可靠运行,快速可靠的消除这些缺陷,是继电保护日常维护中的重要任务之一。本文首先对继电保护系统的组成进行了简要介绍,其次对消缺过程进行详细分析,通过对典型缺陷的各个属性：故障名称、故障现象、故障原因分析、安全注意事项以及处理步骤之间关系的分析和梳理,根据相互之间的依赖关系搭建数据模型,作为专家系统的数据源。其次在传统消缺工作的基础上引入层次分析法,建立了基于层次分析法的优化模型。该模型针对消缺工作的特点,以消缺最优化为目标、消缺中需要考虑的各因素为准则、待排查故障部位为方案,最后得到各可能发生故障部位的综合权重排序,即为消缺排查的最优排序。该方法将传统消缺过程的随机逐个排查转变为按照考虑各影响因素的优化结果排查,提高了消缺效率。最后根据数据模型以及优化模型开发出一套继电保护专家系统,实现该优化方法的可视化操作和快速计算,根据数据库中的数据直接生成消缺的最优结果,有利于该方法的使用和推广。
[Abstract]:Relay protection system is an important part of power system. It is of great significance to ensure the safe and stable operation of power system and the normal operation of important components in the system. During the operation of the relay protection system, there will be some defects, which will make the system work effectively, and some will directly affect the reliable operation of the power system, and eliminate these defects quickly and reliably. Is the relay protection in the daily maintenance of an important Ren Wuzhi. In this paper, the composition of relay protection system is introduced briefly, and then the process of eliminating defects is analyzed in detail. Through the analysis of each attribute of typical defect: fault name, fault phenomenon, fault cause, Based on the analysis and combing of the relationship between the security matters and the processing steps, the data model is built to be the data source of the expert system. Secondly, on the basis of the traditional work of eliminating defects, the analytic hierarchy process (AHP) is introduced, and the optimization model based on AHP (Analytic hierarchy process) is established. According to the characteristics of the work, the model takes the optimization of the elimination as the goal, the factors to be considered in the elimination as the criterion, and the fault location to be checked as the scheme. Finally, the comprehensive weight ranking of the possible fault sites is obtained. In other words, it is the optimal order of eliminating deficiency and checking. In this method, the random search of the traditional elimination process is changed to the optimization result considering various factors, and the efficiency of elimination is improved. Finally, according to the data model and optimization model, a relay protection expert system is developed, which realizes the visual operation and fast calculation of the optimization method, and directly generates the optimal result of elimination according to the data in the database. It is beneficial to the use and popularization of this method.
【学位授予单位】：浙江大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TM77

【参考文献】