智能变电站网络与二次设备状态评估研究

发布时间：2018-04-04 12:31

本文选题：状态检修　切入点：智能电网　出处：《华北电力大学》2014年硕士论文

【摘要】：在二次设备自检能力日趋完善的新形势下，采用常规的定期检验制度对设备进行维护开始变得不合时宜，由预防性计划检修向预知性的状态检修过渡已经成为发展方向。本文阐述了智能化变电站的二次系统呈现出的新特点和传统检修方式存在的弊端。结合江西智能变电站继电保护设备的检修现状，详尽分析了当前检修策略存在的突出问题及影响二次设备正常运行主要因素。构建了合理的设备状态评价模型，为准确地掌握设备的运行状况以及发展趋势和制定有针对性地检修策略提供了有力支撑。本文采用基于模糊数学的二次设备健康状态综合评价方法，根据模糊数学的隶属度理论将定性评价转化为定量评价，对继电保护设备的运行性能进行综合评定，为设备运行、维护和检修提供依据。本文在构建单个设备失效风险模型的基础上，，结合智能变电站的运行实际，深入开展了对智能化变电站的业务回路和整体的功能失效风险的评价工作，以求更为完整和全面地评价智能化变电站风险。
[Abstract]:Under the new situation that the self-examination ability of the secondary equipment is becoming more and more perfect, it is untimely to use the routine periodic inspection system to maintain the equipment, and the transition from preventive planned maintenance to predictive condition maintenance has become the development direction.This paper expounds the new features of the secondary system of intelligent substation and the disadvantages of the traditional maintenance mode.Combined with the maintenance status of relay protection equipment in Jiangxi intelligent substation, this paper analyzes in detail the outstanding problems existing in the current maintenance strategy and the main factors affecting the normal operation of the secondary equipment.A reasonable equipment condition evaluation model is constructed, which provides a strong support for accurately mastering the equipment's running condition and developing trend and making the relevant maintenance strategy.In this paper, the comprehensive evaluation method of secondary equipment health condition based on fuzzy mathematics is adopted. According to the membership degree theory of fuzzy mathematics, the qualitative evaluation is transformed into quantitative evaluation, and the operation performance of relay protection equipment is evaluated synthetically for the operation of the equipment.Provide basis for maintenance and maintenance.On the basis of constructing the failure risk model of single equipment, combined with the actual operation of intelligent substation, the evaluation of the service loop and the whole function failure risk of intelligent substation is carried out in this paper.In order to evaluate the risk of intelligent substation more completely and comprehensively.
【学位授予单位】：华北电力大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TM63;TM76

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