發(fā)布時間：2018-07-03 11:39

  本文選題：雷擊 + 同塔多回線路　； 參考：《華北電力大學》2015年碩士論文

【摘要】：本文緊密結合浙江省電力公司所轄輸電線路實際情況,從防雷基礎理論方面和工程應用實踐方面開展同塔多回路架空線路雷擊同跳模型研究與防雷技術設計。本文研究了線路雷擊分析方法,建立了適用于輸電線路繞擊過程分析的雷電先導分形模型,同時提出了一種計算分析復雜地形下輸電線路繞擊防雷性能的方法；本文對同塔多回線路雷擊同跳模型進行研究,根據同塔多回線路不同回路各相絕緣子先導發(fā)展機理及其與絕緣擊穿間隙之間的關系,在電磁暫態(tài)計算分析平臺上實現(xiàn)同塔多回線路雷擊同時閃絡發(fā)展過程；利用110kV和220kV復合絕緣子并聯(lián)間隙電弧的運動特性仿真,本文研究輸電線路防雷措施；還對新建和已投運同塔多回線路的防雷配置提出了建議。主要研究雷電活動數(shù)據統(tǒng)計方法、雷電通道發(fā)展機理、雷電流入地散流優(yōu)化及雷擊同跳機理和雷擊同跳特征等基礎理論；基于典型線路的實際運行情況研究同塔多回輸電線路耐雷水平影響因素,分析雷電流在桿塔中的傳播和絕緣子擊穿過程,結合同塔多回輸電線路差異化防雷擊同跳技術原理和雷擊閃絡風險等級大小,根據不同防雷措施的綜合防護效果研究制定了典型線路的差異化防防雷擊同跳技術方案。本文緊密結合浙江省電力公司所轄輸電線路實際運行情況,從防雷基礎理論方面和工程應用實踐方面開展同塔多回架空輸電線路同跳模型研究與防雷技術設計研究。
[Abstract]:Based on the actual situation of transmission lines under the jurisdiction of Zhejiang Electric Power Company, this paper carries out the research and design of lightning protection technology from the aspects of basic lightning protection theory and engineering application. In this paper, the lightning strike analysis method of transmission line is studied, and the fractal model of lightning forerunner is established, which is suitable for the analysis of transmission line around failure process. At the same time, a method to calculate and analyze the lightning protection performance of transmission line under complex terrain is put forward. In this paper, the lightning stroke and jump model of the same tower multicircuit line is studied. According to the development mechanism of the different phase insulators in different circuits of the same tower multicircuit line and the relationship between the lead of the insulator and the insulation breakdown gap, The development process of lightning strike and flashover of multi-circuit transmission lines in the same tower is realized on the platform of electromagnetic transient calculation and analysis, and the lightning protection measures of transmission lines are studied by using the simulation of the parallel gap arc motion characteristics of 110kV and 220kV composite insulators. Some suggestions on the lightning protection configuration of the newly built and operated multi-circuit lines of the same tower are also put forward. The basic theories such as the statistical method of lightning activity data, the development mechanism of lightning channel, the optimization of lightning current dispersion, the mechanism of lightning stroke and the characteristics of lightning stroke are studied. Based on the actual operation of typical transmission lines, the factors affecting the lightning resistance of multi-circuit transmission lines with the same tower are studied, and the propagation of lightning current in the tower and the process of insulator breakdown are analyzed. Combined with the principle of differential lightning protection and the risk level of lightning flashover of multi-circuit transmission lines of the same tower, according to the comprehensive protective effect of different lightning protection measures, a typical technical scheme of line differential lightning protection and simultaneous jump protection is established. Based on the actual operation of transmission lines under the jurisdiction of Zhejiang Electric Power Company, this paper develops the research on the same jump model and lightning protection technology of multi-circuit overhead transmission lines in the same tower from the aspects of basic lightning protection theory and engineering application.
【學位授予單位】：華北電力大學
【學位級別】：碩士
【學位授予年份】：2015
【分類號】：TM75;TM863

【參考文獻】

相關期刊論文 前6條

1 吳承恩,邰能靈,郁惟鏞,范春菊,滕樂天,周韞杰;超高壓電纜-架空線混合線路故障測尋方法[J];電力系統(tǒng)自動化;2005年10期

2 錢冠軍,王曉瑜,丁一正,劉兆林,包建強;500kV 線路直擊雷典型事故調查研究[J];高電壓技術;1997年02期

3 易輝;同桿雙回 500kV 輸電線路防雷特性分析及改進措施[J];高電壓技術;1998年02期

4 楊凌輝;祝瑞金;楊增輝;傅晨釗;鮑偉;;平行輸電線路對電網運行的影響及對策[J];華東電力;2011年03期

5 劉廣清;;架空避雷線在10kV架空絕緣導線上的防雷應用[J];自動化博覽;2006年05期

6 張元卿;劉興宇;;新型復合材料結構防雷擊膠膜性能驗證及運用[J];科技創(chuàng)新導報;2012年27期

相關碩士學位論文 前2條

1 王堅敏;10kV架空絕緣導線防雷擊斷線裝置——穿刺型防雷金具研究[D];浙江大學;2007年

2 張銳;屏蔽線技術在10KV架空絕緣導線防雷擊斷線中應用的研究[D];華北電力大學;2012年

，

本文編號：2093513