第四代雷电定位系统的应用研究

发布时间：2018-05-02 09:47

本文选题：雷电定位系统 + 电力系统　；参考：《华北电力大学(北京)》2017年硕士论文

【摘要】：雷电定位系统是一套高度自动化,拥有宽阔监测面积并且定位信息精确的实时雷电监测系统。该系统利用探测器和通讯系统实现远程监测,可以计算雷击的时间、地理位置、落雷峰值电流等各类参数,通过雷电信息系统在显示屏上可视化呈现给用户。世界上的许多国家将雷电定位技术应用到电力系统的防雷检测中,帮助维修人员快速定位雷击故障点、鉴别雷击事故,同时可以提供雷电短时预警信息。雷电定位监测技术在电网中的广泛应用,提高了电网的雷击预警与应急处理能力,保障了电网的安全运营。本文针对数字式的第四代雷电定位系统进行了深入的研究。首先概述了雷电定位系统的发展历史及其在世界上的应用与研究情况,梳理了雷电监测系统在我国的发展过程并介绍了北京市电网建设新一代雷电定位系统的原因;接着分析了输电线路遭受雷击受损的原因,这主要是由于输电线路上的绝缘瓷瓶绝缘性被破坏造成的,研究了雷电定位的探测原理,主要包括定向法、时差法和综合法;然后详细研究了第四代雷电定位系统的整体结构,包括探测站部分的电路原理、对云闪地闪信号的判别、误差分析和布站原则,中心站部分的前置处理机、数据服务器和位置分析仪的功能与结构,雷电信息系统部分的用户界面和使用方法;最后对第四代雷电定位系统在北京市电网的实际应用状况做了详细介绍,包括总体建设方案以及各部分的结构设计,为了验证系统的实际效果,通过采集实测数据,分析了新一代雷电定位系统在雷击事故检查率、雷击定位以及落雷情况统计上的表现情况,分析结果表明新系统具有很高的定位精度,同时文末还对三四代系统的区别进行了比较。
[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.
【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】：TM862

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