【摘要】：智能電網(wǎng)是當(dāng)今世界電力系統(tǒng)發(fā)展變革的最新動向,被認(rèn)為是21世紀(jì)電力系統(tǒng)的重大科技創(chuàng)新和發(fā)展趨勢。隨著大批智能變電站試點(diǎn)工程投入建設(shè),智能組件的需求急劇增加,其應(yīng)用前景十分廣闊。智能組件的安全運(yùn)行對于智能電網(wǎng)至關(guān)重要,而智能組件的推廣和使用面臨變電站復(fù)雜電磁環(huán)境的挑戰(zhàn)。雷電放電會對周圍空間,包括控制室內(nèi)造成傳導(dǎo)或幅射的電磁干擾。本文主要內(nèi)容為雷擊對變電站的智能組件影響的計算方法以及影響規(guī)律的研究。變電站會受到直擊雷、感應(yīng)雷、侵入波的影響。智能變電站里的智能組件通過光纜連接傳輸信號,弱電系統(tǒng)通過電纜和現(xiàn)場連接,會受到直擊雷的影響。若為低幅值雷電直擊站內(nèi)的金屬架構(gòu),會在地網(wǎng)形成干擾電壓,并在空間形成輻射場影響智能組件。通過研究直擊雷和侵入波兩種形式對智能變電站內(nèi)智能組件影響的建模和計算方法與影響規(guī)律,最終提出降低智能組件端口處的浪涌電壓為目標(biāo)開展工作。本文的研究成果為通過計算雷電對智能組件的影響,總結(jié)研究不同避雷針位置、避雷器位置、電纜長短和走向?qū)χ悄芙M件端口電壓的影響規(guī)律,獲得不同因素對智能組件端口浪涌干擾電壓的影響規(guī)律。結(jié)合現(xiàn)有標(biāo)準(zhǔn)給出了智能組件的抗擾度限值,依據(jù)實例中的雷電概率設(shè)定智能變電站的耐雷水平,使智能組件端口特性不超標(biāo)。并提出了智能設(shè)備雷害風(fēng)險評估方法。
[Abstract]:Smart grid is the latest trend of power system development and transformation in the world. It is regarded as a major scientific and technological innovation and development trend of power system in the 21st century. With a large number of intelligent substation pilot projects put into construction, the demand for intelligent components increases rapidly, and its application prospect is very broad. The safe operation of smart components is very important for smart grid, and the promotion and use of intelligent components face the challenge of complex electromagnetic environment of substation. Laser discharge can cause conduction or radiation electromagnetic interference in the surrounding space, including the control room. The main content of this paper is the research on the calculation method and the influence law of the lightning strike on the intelligent component of substation. Substations will be affected by direct lightning, inductive lightning, and invading waves. Intelligent components in intelligent substations transmit signals through optical cables, and weak power systems are connected by direct lightning strikes through cables and field connections. If it is a metal structure in a low-amplitude lightning direct strike station, interference voltage will be formed in the ground grid and the radiation field will affect the intelligent module in space. By studying the modeling and calculating methods and the law of influence of direct strike lightning and intrusion wave on intelligent components in intelligent substations, it is proposed to reduce the surge voltage at the ports of intelligent components for the purpose of carrying out the work. The research results of this paper are as follows: through calculating the influence of lightning on intelligent assembly, the influence of different lightning rod position, arrester position, cable length and direction on the port voltage of intelligent assembly is summarized and studied. The influence of different factors on the surge interference voltage of intelligent module port is obtained. Based on the existing standards, the immunity limit of intelligent components is given, and the lightning resistance level of intelligent substations is set according to the lightning probability in an example, so that the port characteristics of intelligent components do not exceed the standard. A method of lightning hazard risk assessment for intelligent equipment is put forward.
【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】：TM63

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 肖保明;傅靜波;;智能變電站智能組件電磁干擾分析與測試[J];安全與電磁兼容;2014年03期

2 劉鐵;江淵;王旭;韓志文;;對湖北建設(shè)500kV智能變電站的思考[J];通信電源技術(shù);2013年05期

3 許興濤;王松;王海燕;;智能高壓開關(guān)設(shè)備的發(fā)展與應(yīng)用[J];電氣制造;2012年09期

4 周小勇;蘇麟;;智能變電站中采樣值傳輸方式的研究[J];電工電氣;2012年07期

5 馮艷萍;陳洋;李鑫;;淺談智能變電站的分析與研究[J];科技與企業(yè);2011年15期

6 陳維江;顏湘蓮;王紹武;王承玉;李志兵;戴敏;李成榕;劉衛(wèi)東;陳海波;張喬根;魏光林;張猛;;氣體絕緣開關(guān)設(shè)備中特快速瞬態(tài)過電壓研究的新進(jìn)展[J];中國電機(jī)工程學(xué)報;2011年31期

7 馬天祥;徐巖;;基于電流故障分量比相法的變壓器后備保護(hù)[J];陜西電力;2011年07期

8 張曉華;劉躍新;劉永欣;孫嘉;邱俊宏;;智能變電站二次設(shè)備的狀態(tài)監(jiān)測技術(shù)研究[J];電氣技術(shù);2011年04期

9 曹楠;李剛;王冬青;;智能變電站關(guān)鍵技術(shù)及其構(gòu)建方式的探討[J];電力系統(tǒng)保護(hù)與控制;2011年05期

10 張禹芳;宋繼明;;500kV交流輸變電工程啟動調(diào)試中斷路器分合分試驗的探討[J];電網(wǎng)技術(shù);2007年17期

相關(guān)博士學(xué)位論文 前1條

1 程利軍;微機(jī)繼電保護(hù)裝置電磁兼容研究[D];華北電力（北京）大學(xué);2001年

，

本文編號：2303547