【摘要】：大跨越工程水面上層容易形成層流風(fēng),其產(chǎn)生的微風(fēng)振動(dòng)可使導(dǎo)線(xiàn)線(xiàn)股產(chǎn)生交變的應(yīng)力和應(yīng)變。當(dāng)振動(dòng)水平很大時(shí),容易引起架空線(xiàn)疲勞斷線(xiàn),威脅輸電線(xiàn)路的運(yùn)行安全。因此,必須采取防振措施。由于輸電線(xiàn)路微風(fēng)振動(dòng)的非線(xiàn)性,目前尚不能完全通過(guò)理論計(jì)算制定防振方案,因此,為了保證導(dǎo)地線(xiàn)的運(yùn)行安全,有必要進(jìn)行導(dǎo)地線(xiàn)的微風(fēng)振動(dòng)模擬試驗(yàn),從中優(yōu)選出理想的防振方案。本文基于實(shí)際工程背景和國(guó)內(nèi)外對(duì)于輸電線(xiàn)微風(fēng)振動(dòng)防治方面理論與試驗(yàn)研究現(xiàn)狀,以大埔電廠(chǎng)—嘉應(yīng)站、大埔電廠(chǎng)—長(zhǎng)沙站輸電線(xiàn)路工程梅江河跨越段為研究對(duì)象,論述了工程采用的大截面導(dǎo)線(xiàn)、地線(xiàn)及OPGW光纜微風(fēng)振動(dòng)試驗(yàn)研究的過(guò)程和原理。主要從防振錘防振、阻尼線(xiàn)防振、阻尼線(xiàn)與防振錘聯(lián)合防振三個(gè)方面對(duì)大跨越的多種不同的防振方案進(jìn)行了設(shè)計(jì)與試驗(yàn)研究,通過(guò)試驗(yàn)數(shù)據(jù)得到工程采用的三種型號(hào)輸電線(xiàn)自阻尼特性表達(dá)式和導(dǎo)線(xiàn)采用各防振方案時(shí)的頻響特性曲線(xiàn)。通過(guò)對(duì)各組頻響特性曲線(xiàn)的對(duì)比判定其防振效果的優(yōu)劣,得出其變化規(guī)律,并根據(jù)試驗(yàn)結(jié)果優(yōu)選出合理的防振方案。試驗(yàn)結(jié)果表明:防振錘的個(gè)數(shù)對(duì)導(dǎo)線(xiàn)的振動(dòng)水平影響很大,能夠改變輸電線(xiàn)的振動(dòng)特性,擴(kuò)大防振裝置的頻率保護(hù)范圍。長(zhǎng)阻尼線(xiàn)花邊對(duì)低頻的防振效果較短阻尼線(xiàn)花邊顯著,阻尼線(xiàn)對(duì)高頻的防振效果良好。防振錘與阻尼線(xiàn)聯(lián)合防振可以發(fā)揮防振錘與阻尼線(xiàn)的特點(diǎn),防振效果比較理想。防振鞭同防振錘和阻尼線(xiàn)的防振效果相比還有差距,不推薦使用其作為本線(xiàn)路的防振裝置。優(yōu)選出的防振方案滿(mǎn)足技術(shù)要求,具有良好的防振效果,可以顯著降低導(dǎo)地線(xiàn)的微風(fēng)振動(dòng)水平,保證輸電線(xiàn)路的安全運(yùn)行。
[Abstract]:The upper layer of the water surface of the large-span engineering is easy to form a flow wind, and the generated breeze vibration can lead the wire strand to generate alternating stress and strain. When the vibration level is large, the fatigue of the overhead line can be easily caused, and the operation safety of the power transmission line is threatened. Therefore, anti-vibration measures must be taken. Because of the non-linearity of the breeze vibration of the power transmission line, the anti-vibration scheme can not be established completely by the theory calculation. Therefore, in order to ensure the operation safety of the guide wire, it is necessary to conduct the simulation test of the breeze vibration of the earth guide wire, from which the ideal anti-vibration scheme is preferred. In this paper, based on the actual engineering background and the research status of the theory and test on the control of the breeze vibration of the transmission line at home and abroad, the paper discusses the large-section conductor adopted in the project by taking the crossing section of the Meijiang River crossing section of the power transmission line project of the Tai Po Power Plant at the station, the Tai Po Power Plant and the Changsha Station of the Tai Po Power Plant as the research object. The process and principle of the research on the wind vibration test of ground wire and OPGW optical cable. The design and test of a large span of different anti-vibration schemes are carried out mainly from three aspects, such as anti-vibration of the anti-vibration hammer, the anti-vibration of the damping line, the combination of the damping wire and the anti-vibration hammer, The self-damping characteristic expression of three types of transmission lines adopted by the project and the frequency response characteristic curve when the wires are used for each anti-vibration scheme are obtained through the test data. Through the comparison of the frequency response characteristic curves of each group, the anti-vibration effect is determined, and the variation law is obtained, and a reasonable anti-vibration scheme is preferably obtained according to the test result. The test results show that the number of the anti-vibration hammer has great influence on the vibration level of the wire, can change the vibration characteristic of the transmission line and enlarge the frequency protection range of the anti-vibration device. The effect of the long-damping line on the low-frequency vibration-proof effect is shorter than that of the short damping line, and the damping line has good anti-vibration effect on the high-frequency. The anti-vibration hammer and the damping wire can be used for anti-vibration, and the vibration-proof hammer and the damping wire can be used for preventing the vibration-proof effect from being more ideal. Compared with the anti-vibration effect of the anti-vibration hammer and the damping wire, the anti-vibration whip is not recommended to use as the anti-vibration device of the circuit. The preferred anti-vibration scheme meets the technical requirement, has good anti-vibration effect, can remarkably reduce the breeze vibration level of the guide wire and ensure the safe operation of the power transmission line.
【學(xué)位授予單位】：東北電力大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類(lèi)號(hào)】：TM75

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 劉習(xí)軍;周安琪;劉鵬;張西強(qiáng);李想;相林杰;;架空輸電線(xiàn)防振錘阻尼特性實(shí)驗(yàn)研究[J];實(shí)驗(yàn)力學(xué);2014年05期

2 孟遂民;郭昊;劉昊;楊爽;;架空線(xiàn)微風(fēng)振動(dòng)特性實(shí)驗(yàn)裝置研究[J];三峽大學(xué)學(xué)報(bào)(自然科學(xué)版);2012年05期

3 周超;芮曉明;柳亦兵;齊芊楓;;輸電線(xiàn)路風(fēng)雨激振分析模型及數(shù)值分析[J];振動(dòng).測(cè)試與診斷;2012年03期

4 徐亮;秦加林;宋立軍;李寧;;寧東直流輸電線(xiàn)路黃河大跨越導(dǎo)、地線(xiàn)防振試驗(yàn)研究[J];科技創(chuàng)新導(dǎo)報(bào);2011年36期

5 侯景鵬;吳興宏;孫自堂;;防振錘-輸電線(xiàn)體系微風(fēng)振動(dòng)的研究與進(jìn)展[J];合肥工業(yè)大學(xué)學(xué)報(bào)(自然科學(xué)版);2011年05期

6 孔德怡;王鵬;周長(zhǎng)征;;安裝防振錘輸電線(xiàn)微風(fēng)振動(dòng)試驗(yàn)研究[J];水電能源科學(xué);2011年01期

7 白樺;;500kV江陰長(zhǎng)江大跨越OPGW防振改造方案試驗(yàn)研究[J];機(jī)電信息;2010年30期

8 李黎;陳元坤;葉志雄;尹鵬;;架空輸電線(xiàn)微風(fēng)振動(dòng)的室內(nèi)模擬試驗(yàn)[J];華中科技大學(xué)學(xué)報(bào)(自然科學(xué)版);2010年08期

9 李黎;葉志雄;江宜城;方秦漢;;阻尼線(xiàn)的耗能計(jì)算及其在輸電線(xiàn)防振中的應(yīng)用[J];振動(dòng)與沖擊;2009年08期

10 劉勝春;朱寬軍;王洪;劉超群;;1000kV輸電線(xiàn)路防振研究[J];高電壓技術(shù);2008年04期

相關(guān)博士學(xué)位論文 前3條

1 陳元坤;分裂導(dǎo)線(xiàn)的微風(fēng)振動(dòng)與次檔距振蕩研究[D];華中科技大學(xué);2011年

2 王洪;大跨越架空輸電線(xiàn)路分裂導(dǎo)線(xiàn)的微風(fēng)振動(dòng)及防振研究[D];華北電力大學(xué)（北京）;2010年

3 孔德怡;基于動(dòng)力學(xué)方法的特高壓輸電線(xiàn)微風(fēng)振動(dòng)研究[D];華中科技大學(xué);2009年

相關(guān)碩士學(xué)位論文 前2條

1 余淑慧;輸電線(xiàn)防振錘系統(tǒng)微風(fēng)振動(dòng)特性研究[D];華北電力大學(xué);2012年

2 楊振華;大跨越輸電線(xiàn)路微風(fēng)振動(dòng)分析[D];重慶大學(xué);2010年

，

本文編號(hào)：2506874