电力变压器故障分析及智能维修决策

发布时间：2018-12-17 16:27

【摘要】：我国电力系统的发展已经步入了大电网、大机组、特高压的时代,电力供应的好坏直接影响着我国经济的发展速度。因此,保证电力供应的可靠性是目前电力系统的热点研究问题。而对电力系统稳定性和可靠性影响最大的就是设备故障,设备故障不仅会造成极大的经济损失,还会严重影响人们的生产和生活安全。针对这一问题,目前较为有效的解决办法就是以设备风险评估为基础,制定合理有效的维修策略。本文在分析现有电力变压器风险评估和维修决策理论的特点及存在的问题的基础上,充分考虑电力变压器运行过程中风险因素的相互影响,从故障模式和失效性分析方法、模糊数学方法、层次分析方法、风险计算和评估等不同角度深入研究了大型变压器的风险评估和维修决策的方法问题,并在理论研究成果的基础上展开应用研究,期望达到完善大型变压器风险评估理论的目的,并能为变压器的安全运行提供理论参考。
[Abstract]:The development of power system in our country has entered the era of large power grid, large unit and UHV, the quality of power supply directly affects the development speed of our country's economy. Therefore, to ensure the reliability of power supply is a hot research issue in power system. The most important influence on the stability and reliability of power system is the equipment failure, which will not only cause great economic losses, but also seriously affect the production and life safety of people. To solve this problem, the more effective solution is to establish a reasonable and effective maintenance strategy based on the equipment risk assessment. On the basis of analyzing the characteristics and problems of the existing power transformer risk assessment and maintenance decision theory, this paper fully considers the mutual influence of the risk factors in the operation of power transformer, and analyzes the failure mode and failure of power transformer. Fuzzy mathematics method, analytic hierarchy process (AHP) method, risk calculation and evaluation are used to study the risk assessment and maintenance decision of large transformer, and the application research is carried out on the basis of theoretical research results. It is expected to perfect the risk assessment theory of large transformers and provide theoretical reference for the safe operation of transformers.
【学位授予单位】：华北电力大学(北京)
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：TM41

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