抽水蓄能电站单导叶控制调速器的导叶状态监测与故障诊断
发布时间：2018-08-12 10:25
【摘要】：随着我国经济的高速发展,电网规模越来越大,抽水蓄能电站在电网中的作用与地位日趋重要,已从早期的调峰填谷改善电源品质逐步过渡到电力系统中不可或缺的管理工具。而单导叶调速器具有先进的导叶控制方式,调节方式灵活,调节精度高,被推广应用于新型抽水蓄能电站。但是,其数量众多的控制元件与相对复杂的系统结构,特别是导叶不同步故障,给抽水蓄能电站的安全稳定运行带来了较大影响,需要有针对性地加以解决。本文以山东泰山抽水蓄能电站单导叶调速器系统为研究对象,针对其没有导叶状态实时数据监测及历史数据查询功能的问题,对单导叶调速器的状态监测与故障诊断进行了研究。论文的主要工作及成果体现在:(1)对状态监测与故障诊断技术的研究现状与发展趋势进行了归纳和总结,详细分析了泰山抽水蓄能电站单导叶调速器系统的结构和功能,从部件级分析了导叶不同步故障的产生原因。(2)将FMEA与FTA分析法结合,从理论研究的角度,在功能层面分析了导叶不同步故障类型和因果关系;利用BP神经网络建立故障征兆与故障原因之间的联系,以此来指导机组检修人员的故障诊断工作。(3)对导叶状态监测系统进行了硬件/软件设计,进行了设备选型及系统集成,在LabVIEW平台上开发了导叶状态监测程序,并将其用于实际运行中,通过所开发系统在泰蓄电站的实际运行,证明了本文研究成果的可行性与有效性。
[Abstract]:With the rapid development of economy in our country, the scale of power grid is becoming larger and larger, and the role and status of pumped storage power station in power network is becoming more and more important. It has been gradually transferred from the early peak-shaving and valley filling to the indispensable management tool in power system. The single guide vane governor has advanced guide vane control mode, flexible regulation mode and high regulation precision, so it is widely used in new type pumped storage power station. However, the large number of control elements and the relatively complex system structure, especially the non-synchronous fault of the guide vane, have brought great influence to the safe and stable operation of the pumped storage power station, which need to be solved pertinently. This paper takes the single guide vane governor system of Shandong Taishan pumped Storage Power Station as the research object, aiming at the problem that it does not have the function of real-time monitoring of guide vane state and querying historical data. The condition monitoring and fault diagnosis of single guide vane governor are studied. The main work and achievements are as follows: (1) the research status and development trend of condition monitoring and fault diagnosis technology are summarized and summarized, and the structure and function of single guide vane governor system in Taishan pumped storage power station are analyzed in detail. The causes of the asynchronous fault of the guide vane are analyzed from the component level. (2) combining the FMEA and FTA analysis, the types and causality of the asynchronous fault of the guide vane are analyzed from the angle of theoretical research. BP neural network is used to establish the relationship between fault symptoms and fault causes to guide the fault diagnosis of unit maintenance personnel. (3) the hardware / software design of the guide vane condition monitoring system is carried out, and the equipment selection and system integration are carried out. A guide vane condition monitoring program is developed on the LabVIEW platform and used in practical operation. The feasibility and effectiveness of the research results are proved by the actual operation of the developed system in Tai storage power station.
【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】：2017
【分类号】：TV743;TV734.4
[Abstract]:With the rapid development of economy in our country, the scale of power grid is becoming larger and larger, and the role and status of pumped storage power station in power network is becoming more and more important. It has been gradually transferred from the early peak-shaving and valley filling to the indispensable management tool in power system. The single guide vane governor has advanced guide vane control mode, flexible regulation mode and high regulation precision, so it is widely used in new type pumped storage power station. However, the large number of control elements and the relatively complex system structure, especially the non-synchronous fault of the guide vane, have brought great influence to the safe and stable operation of the pumped storage power station, which need to be solved pertinently. This paper takes the single guide vane governor system of Shandong Taishan pumped Storage Power Station as the research object, aiming at the problem that it does not have the function of real-time monitoring of guide vane state and querying historical data. The condition monitoring and fault diagnosis of single guide vane governor are studied. The main work and achievements are as follows: (1) the research status and development trend of condition monitoring and fault diagnosis technology are summarized and summarized, and the structure and function of single guide vane governor system in Taishan pumped storage power station are analyzed in detail. The causes of the asynchronous fault of the guide vane are analyzed from the component level. (2) combining the FMEA and FTA analysis, the types and causality of the asynchronous fault of the guide vane are analyzed from the angle of theoretical research. BP neural network is used to establish the relationship between fault symptoms and fault causes to guide the fault diagnosis of unit maintenance personnel. (3) the hardware / software design of the guide vane condition monitoring system is carried out, and the equipment selection and system integration are carried out. A guide vane condition monitoring program is developed on the LabVIEW platform and used in practical operation. The feasibility and effectiveness of the research results are proved by the actual operation of the developed system in Tai storage power station.
【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】：2017
【分类号】：TV743;TV734.4
【参考文献】
相关期刊论文 前10条
1 陈鑫;王彬;申思;杨e，
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