本文選題：雷電定位系統(tǒng) + 電力系統(tǒng)��； 參考：《華北電力大學(xué)(北京)》2017年碩士論文

【摘要】：雷電定位系統(tǒng)是一套高度自動(dòng)化,擁有寬闊監(jiān)測(cè)面積并且定位信息精確的實(shí)時(shí)雷電監(jiān)測(cè)系統(tǒng)。該系統(tǒng)利用探測(cè)器和通訊系統(tǒng)實(shí)現(xiàn)遠(yuǎn)程監(jiān)測(cè),可以計(jì)算雷擊的時(shí)間、地理位置、落雷峰值電流等各類參數(shù),通過雷電信息系統(tǒng)在顯示屏上可視化呈現(xiàn)給用戶。世界上的許多國(guó)家將雷電定位技術(shù)應(yīng)用到電力系統(tǒng)的防雷檢測(cè)中,幫助維修人員快速定位雷擊故障點(diǎn)、鑒別雷擊事故,同時(shí)可以提供雷電短時(shí)預(yù)警信息。雷電定位監(jiān)測(cè)技術(shù)在電網(wǎng)中的廣泛應(yīng)用,提高了電網(wǎng)的雷擊預(yù)警與應(yīng)急處理能力,保障了電網(wǎng)的安全運(yùn)營(yíng)。本文針對(duì)數(shù)字式的第四代雷電定位系統(tǒng)進(jìn)行了深入的研究。首先概述了雷電定位系統(tǒng)的發(fā)展歷史及其在世界上的應(yīng)用與研究情況,梳理了雷電監(jiān)測(cè)系統(tǒng)在我國(guó)的發(fā)展過程并介紹了北京市電網(wǎng)建設(shè)新一代雷電定位系統(tǒng)的原因;接著分析了輸電線路遭受雷擊受損的原因,這主要是由于輸電線路上的絕緣瓷瓶絕緣性被破壞造成的,研究了雷電定位的探測(cè)原理,主要包括定向法、時(shí)差法和綜合法;然后詳細(xì)研究了第四代雷電定位系統(tǒng)的整體結(jié)構(gòu),包括探測(cè)站部分的電路原理、對(duì)云閃地閃信號(hào)的判別、誤差分析和布站原則,中心站部分的前置處理機(jī)、數(shù)據(jù)服務(wù)器和位置分析儀的功能與結(jié)構(gòu),雷電信息系統(tǒng)部分的用戶界面和使用方法;最后對(duì)第四代雷電定位系統(tǒng)在北京市電網(wǎng)的實(shí)際應(yīng)用狀況做了詳細(xì)介紹,包括總體建設(shè)方案以及各部分的結(jié)構(gòu)設(shè)計(jì),為了驗(yàn)證系統(tǒng)的實(shí)際效果,通過采集實(shí)測(cè)數(shù)據(jù),分析了新一代雷電定位系統(tǒng)在雷擊事故檢查率、雷擊定位以及落雷情況統(tǒng)計(jì)上的表現(xiàn)情況,分析結(jié)果表明新系統(tǒng)具有很高的定位精度,同時(shí)文末還對(duì)三四代系統(tǒng)的區(qū)別進(jìn)行了比較。
[Abstract]:Lightning location system is a real-time lightning monitoring system with wide monitoring area and accurate location information. The system realizes remote monitoring by using detector and communication system. It can calculate the time, geographical position and peak current of lightning strike, and visualize the lightning information system to the user on the display screen. Many countries in the world apply lightning location technology to lightning protection detection in power system to help maintainers locate lightning fault points quickly, identify lightning strike accidents, and provide short warning information of lightning and lightning. The wide application of lightning location monitoring technology in power grid improves the ability of early warning and emergency handling of lightning strike and ensures the safe operation of power grid. In this paper, the fourth generation lightning location system is studied. Firstly, the development history of lightning location system and its application and research in the world are summarized, the development process of lightning monitoring system in China is combed and the reasons for the construction of a new generation lightning location system in Beijing Power Grid are introduced. Secondly, the paper analyzes the reason of the transmission line being damaged by lightning strike, which is mainly caused by the insulation of the insulator porcelain bottle on the transmission line. The detection principle of lightning location is studied, including orientation method, time difference method and synthesis method. Then the whole structure of the fourth generation lightning location system is studied in detail, including the circuit principle of the detecting station, the discrimination of the cloud flicker signal, the error analysis and the station layout principle, and the preprocessor of the central station part. The function and structure of data server and position analyzer, the user interface and usage method of lightning information system, and the application of the fourth generation lightning location system in Beijing power grid are introduced in detail. In order to verify the actual effect of the system, through collecting the measured data, the paper analyzes the checking rate of the new generation lightning location system in the lightning accident. The results show that the new system has high positioning accuracy. At the end of this paper, the differences of the third and fourth generation systems are compared.
【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)】：TM862

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