本文選題：山區(qū)　切入點：高壓輸電線路　出處：《華北電力大學(xué)(北京)》2017年碩士論文

【摘要】：輸電線路是電力系統(tǒng)中的重要組成部分。隨著我國電網(wǎng)技術(shù)的不斷發(fā)展,電網(wǎng)網(wǎng)架不斷調(diào)整和豐富,近年來,建成投運輸電線路逐年增長,輸電線路的運行安全越來越受到重視。統(tǒng)計數(shù)據(jù)表明,電力系統(tǒng)中的諸多事故都由輸電線路故障引起的,而輸電線路的故障又有很大部分是雷擊造成的,而架設(shè)在山區(qū)的線路,該部分占的比例更大。本文針對山區(qū)防雷的幾個關(guān)鍵技術(shù)問題進(jìn)行了分析研究,并應(yīng)用理論研究結(jié)果,以具有代表性的安徽六安文峰-古碑220k V線路工程為例進(jìn)行了設(shè)計。在山區(qū)路徑選擇方面,以合理控制工程投資,有效提升線路安全運行水平為目的,在遵循屬地規(guī)劃部門批準(zhǔn)的路徑主體方案的基礎(chǔ)上,深入分析沿線雷電氣象、特征參數(shù)等基礎(chǔ)數(shù)據(jù),有效避讓不良地質(zhì)區(qū)段、優(yōu)化高海拔線路條件,重點關(guān)注塔位的合理選取、易擊區(qū)避讓等因素。并結(jié)合當(dāng)?shù)囟嗄贻旊娋�路的運行經(jīng)驗,分別對導(dǎo)線、地線、防舞、鳥害和絕緣配置等設(shè)計參數(shù)進(jìn)行分析,并給出推薦的設(shè)計參數(shù)組合。在線路防雷設(shè)計方面,對桿塔進(jìn)行地形地貌、地面傾角、海拔高程等特征參數(shù)統(tǒng)計分析,計算繞擊跳閘率、反擊跳閘率及雷擊跳閘率;開展雷擊閃絡(luò)特性分析、差異化評估雷擊閃絡(luò)風(fēng)險級別,甄選出沿線雷擊閃絡(luò)風(fēng)險級別高的桿塔。針對雷擊閃絡(luò)風(fēng)險級別高的桿塔差異化提出單側(cè)安裝可控避雷針、優(yōu)化桿塔導(dǎo)線排列方式壓縮桿塔全高、增設(shè)垂直接地體降低接地電阻、采用盤型絕緣子提升絕緣配置水平的防雷措施,提高線路運行可靠性。
[Abstract]:Transmission line is an important part of power system. With the continuous development of power network technology in China, the network structure is constantly adjusted and enriched. In recent years, the number of power transmission lines built and put into operation has increased year by year. More and more attention has been paid to the operation safety of transmission lines. The statistical data show that many accidents in power system are caused by transmission line faults, and most of the faults of transmission lines are caused by lightning strikes. In this paper, several key technical problems of lightning protection in mountainous areas are analyzed and studied, and the results of theoretical research are applied. Taking the typical Luan Wenfeng-Gubei 220kV line project in Anhui as an example, the paper designs the route selection in mountain area in order to reasonably control the investment of the project and effectively improve the safe operation level of the line. On the basis of following the main route plan approved by the territorial planning department, the basic data such as lightning meteorology and characteristic parameters along the line are deeply analyzed, the bad geological section is effectively avoided, the condition of high elevation line is optimized, and the reasonable selection of tower position is focused on. Combining with the operation experience of local transmission lines for many years, the design parameters such as wire, ground wire, dance prevention, bird damage and insulation configuration are analyzed respectively. The recommended design parameter combination is given. In the design of lightning protection, the characteristic parameters such as topography and geomorphology, ground inclination angle, elevation and so on are analyzed, and the tripping rate, counter trip rate and lightning tripping rate are calculated. The lightning flashover characteristic analysis is carried out, the lightning flashover risk level is evaluated differently, and the pole tower with high lightning flashover risk level along the line is selected. For the pole tower with high lightning flashover risk level, a controllable lightning rod is installed on one side. In order to improve the reliability of the transmission line, the total height of the tower is compressed by optimizing the arrangement of the conductor, the vertical grounding body is added to reduce the grounding resistance, and the lightning protection measures of the disk type insulator are adopted to enhance the insulation configuration level.
【學(xué)位授予單位】：華北電力大學(xué)(北京)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：TM863

【參考文獻(xiàn)】

相關(guān)期刊論文 前4條

1 莊文柳;蔣傳文;;智能變電站二次設(shè)備的整合方案[J];電力與能源;2013年02期

2 黃斌;徐姍姍;蘇文宇;;輸電線路覆冰研究綜述[J];電瓷避雷器;2012年01期

3 楚彥君;焦邵華;奚志江;;電廠電氣監(jiān)控管理系統(tǒng)[J];電力自動化設(shè)備;2011年05期

4 孫才新,顧樂觀,張建輝,蔣興良;覆冰絕緣子的交流放電機理研究[J];中國電機工程學(xué)報;1989年05期

相關(guān)博士學(xué)位論文 前1條

1 黃道春;超/特高壓絕緣子串污閃、冰閃特性及電位和電場分布研究[D];武漢大學(xué);2009年

相關(guān)碩士學(xué)位論文 前10條

1 汪曉;安徽省超特高壓線路雷擊閃絡(luò)風(fēng)險評估及差異化防雷研究[D];華北電力大學(xué);2014年

2 崔征;北京地區(qū)輸電線路差異化防雷技術(shù)應(yīng)用研究[D];華北電力大學(xué);2013年

3 朱凱;基于江西電網(wǎng)輸電線路防雷治理深化研究[D];南昌大學(xué);2012年

4 康琛;山區(qū)輸電線路避雷器加裝方案研究[D];華北電力大學(xué);2013年

5 劉守剛;110kV智能變電站設(shè)計及其可靠性分析[D];華北電力大學(xué);2012年

6 叢義宏;220kV高壓輸電線路的防雷接地技術(shù)研究[D];華北電力大學(xué)（北京）;2010年

7 楊春波;江淮地區(qū)高壓輸電線路綜合防雷措施的研究[D];華北電力大學(xué)（河北）;2010年

8 劉智睿;大慶油田電網(wǎng)防雷現(xiàn)狀及改進(jìn)措施研究[D];天津大學(xué);2009年

9 樊春雷;重雷區(qū)域輸電線路耐雷水平影響因素的研究[D];西南交通大學(xué);2009年

10 關(guān)宏;輸電線路桿塔防雷指標(biāo)的研究[D];廣西大學(xué);2008年

，

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