發(fā)布時(shí)間：2018-08-12 10:25

【摘要】：隨著我國(guó)經(jīng)濟(jì)的高速發(fā)展,電網(wǎng)規(guī)模越來(lái)越大,抽水蓄能電站在電網(wǎng)中的作用與地位日趨重要,已從早期的調(diào)峰填谷改善電源品質(zhì)逐步過(guò)渡到電力系統(tǒng)中不可或缺的管理工具。而單導(dǎo)葉調(diào)速器具有先進(jìn)的導(dǎo)葉控制方式,調(diào)節(jié)方式靈活,調(diào)節(jié)精度高,被推廣應(yīng)用于新型抽水蓄能電站。但是,其數(shù)量眾多的控制元件與相對(duì)復(fù)雜的系統(tǒng)結(jié)構(gòu),特別是導(dǎo)葉不同步故障,給抽水蓄能電站的安全穩(wěn)定運(yùn)行帶來(lái)了較大影響,需要有針對(duì)性地加以解決。本文以山東泰山抽水蓄能電站單導(dǎo)葉調(diào)速器系統(tǒng)為研究對(duì)象,針對(duì)其沒(méi)有導(dǎo)葉狀態(tài)實(shí)時(shí)數(shù)據(jù)監(jiān)測(cè)及歷史數(shù)據(jù)查詢功能的問(wèn)題,對(duì)單導(dǎo)葉調(diào)速器的狀態(tài)監(jiān)測(cè)與故障診斷進(jìn)行了研究。論文的主要工作及成果體現(xiàn)在:(1)對(duì)狀態(tài)監(jiān)測(cè)與故障診斷技術(shù)的研究現(xiàn)狀與發(fā)展趨勢(shì)進(jìn)行了歸納和總結(jié),詳細(xì)分析了泰山抽水蓄能電站單導(dǎo)葉調(diào)速器系統(tǒng)的結(jié)構(gòu)和功能,從部件級(jí)分析了導(dǎo)葉不同步故障的產(chǎn)生原因。(2)將FMEA與FTA分析法結(jié)合,從理論研究的角度,在功能層面分析了導(dǎo)葉不同步故障類型和因果關(guān)系;利用BP神經(jīng)網(wǎng)絡(luò)建立故障征兆與故障原因之間的聯(lián)系,以此來(lái)指導(dǎo)機(jī)組檢修人員的故障診斷工作。(3)對(duì)導(dǎo)葉狀態(tài)監(jiān)測(cè)系統(tǒng)進(jìn)行了硬件/軟件設(shè)計(jì),進(jìn)行了設(shè)備選型及系統(tǒng)集成,在LabVIEW平臺(tái)上開(kāi)發(fā)了導(dǎo)葉狀態(tài)監(jiān)測(cè)程序,并將其用于實(shí)際運(yùn)行中,通過(guò)所開(kāi)發(fā)系統(tǒng)在泰蓄電站的實(shí)際運(yùn)行,證明了本文研究成果的可行性與有效性。
[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.
【學(xué)位授予單位】：華北電力大學(xué)(北京)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類號(hào)】：TV743;TV734.4

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 陳鑫;王彬;申思;楊e，

本文編號(hào)：2178766