本文關(guān)鍵詞： 光伏并網(wǎng) 保護(hù) 重合閘 孤島效應(yīng)　出處：《華北電力大學(xué)》2014年碩士論文　論文類型：學(xué)位論文

【摘要】：隨著全球資源和環(huán)境壓力的增大,能源危機(jī)也日益嚴(yán)峻,可再生能源作為一種清潔環(huán)保的能源,被大力發(fā)展已經(jīng)成為一種趨勢。當(dāng)前配電網(wǎng)中,可再生能源等分布式發(fā)電單元的數(shù)量已在不斷的增加,同時用戶對電能質(zhì)量的要求也不斷的提升,建設(shè)一個安全可靠、環(huán)保經(jīng)濟(jì)的配電網(wǎng)是我們努力的方向。光伏發(fā)電具有可再生、無污染、安裝方便等優(yōu)點,對環(huán)境的適應(yīng)性相對別的可再生性能源也更強(qiáng),一定會成為未來智能配電網(wǎng)中一種重要的微電源。 這篇論文以杭州能源產(chǎn)業(yè)園的并網(wǎng)光伏發(fā)電站為研究對象,主要針對光伏并網(wǎng)后系統(tǒng)中容易產(chǎn)生的問題如發(fā)電量的無規(guī)律的變化、頻率異常、對系統(tǒng)故障電流的影響、孤島效應(yīng)等問題。利用合作單位在實驗室建立的仿真平臺模擬光伏電站的模型,分析這個光伏電站的實際運(yùn)行數(shù)據(jù),模擬公共連接點的電壓和頻率的波動情況,研究分析光伏電站的輸出電流諧波對配電線路其他負(fù)荷的影響,并重點分析了光伏電站并網(wǎng)后故障點短路電流的變化,以及對配電網(wǎng)保護(hù)和重合閘的配置方式的研究應(yīng)用,探索光伏電站發(fā)生供電孤島時電壓和頻率的變化以及光伏電站構(gòu)成可孤島運(yùn)行微電網(wǎng)的方案,為今后結(jié)合并網(wǎng)光伏電站建設(shè)自治可控的微電網(wǎng)提供理論基礎(chǔ)。
[Abstract]:With the increasing pressure of global resources and environment, the energy crisis is becoming more and more serious. As a kind of clean and environmentally friendly energy, renewable energy has been vigorously developed into a trend. The number of distributed power generation units, such as renewable energy, has been increasing, and the demand for power quality has also been rising, so as to build a safe and reliable power generation unit. The distribution network of environmental protection and economy is the direction of our efforts. Photovoltaic power generation has the advantages of renewable, pollution-free, convenient installation and so on, and has stronger adaptability to the environment than other renewable energy sources. It will become an important micro power source in the future smart distribution network. This paper takes the grid-connected photovoltaic power station in Hangzhou Energy Industry Park as the research object. It mainly aims at the problems that are easy to produce in the system after the photovoltaic grid connection, such as the irregular change of the generation quantity, the abnormal frequency, and the influence on the fault current of the system. Using the simulation platform established by the cooperative unit in the laboratory to simulate the model of the photovoltaic power station, analyze the actual operation data of the photovoltaic power station, simulate the fluctuation of the voltage and frequency of the common connection point, The influence of output current harmonics of photovoltaic power station on other load of distribution line is analyzed, and the variation of fault point short-circuit current after connection of photovoltaic power station is analyzed, and the research and application of distribution network protection and reclosure configuration mode are also discussed. This paper explores the variation of voltage and frequency when the photovoltaic power station is isolated from the island and the scheme that the photovoltaic power station can operate on the isolated island, which provides a theoretical basis for the future construction of autonomous and controllable microgrid combined with grid-connected photovoltaic power station.
【學(xué)位授予單位】：華北電力大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2014
【分類號】：TM615

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 楊衛(wèi)東;薛峰;徐泰山;方勇杰;李碧君;;光伏并網(wǎng)發(fā)電系統(tǒng)對電網(wǎng)的影響及相關(guān)需求分析[J];水電自動化與大壩監(jiān)測;2009年04期

2 劉飛;查曉明;周彥;殷進(jìn)軍;段善旭;;基于極點配置與重復(fù)控制相結(jié)合的三相光伏發(fā)電系統(tǒng)的并網(wǎng)策略[J];電工技術(shù)學(xué)報;2008年12期

3 楊水濤;張帆;丁新平;錢照明;;基于輸入-輸出參數(shù)的光伏電池最大功率控制的比較[J];電工技術(shù)學(xué)報;2009年06期

4 陳興峰,曹志峰,焦在強(qiáng),許洪華;基于DSP的20kW單相并網(wǎng)光伏逆變器[J];電氣應(yīng)用;2005年08期

5 王章權(quán);張超;何湘寧;;瞬時電流控制策略在光伏并網(wǎng)發(fā)電系統(tǒng)中的應(yīng)用[J];電氣應(yīng)用;2007年04期

6 王健強(qiáng);;第五講:并網(wǎng)光伏發(fā)電系統(tǒng)[J];電力電子;2009年04期

7 首�？�,黃念慈,竇偉;一種新型的光伏逆變器控制方法[J];電力電子技術(shù);2004年02期

8 王飛,余世杰,蘇建徽,沈玉梁;采用最大功率點跟蹤的光伏并網(wǎng)逆變器研究[J];電力電子技術(shù);2004年05期

9 張超,何湘寧;一種用于光伏發(fā)電系統(tǒng)的新型高頻逆變器[J];電力系統(tǒng)自動化;2005年19期

10 董密;羅安;;光伏并網(wǎng)發(fā)電系統(tǒng)中逆變器的設(shè)計與控制方法[J];電力系統(tǒng)自動化;2006年20期

，

本文編號：1498378