【摘要】：繼電保護(hù)系統(tǒng)現(xiàn)在已經(jīng)成為了電力系統(tǒng)中不可或缺的一部分,一旦在電力系統(tǒng)的運行過程中出現(xiàn)故障或異常狀況,繼電保護(hù)系統(tǒng)的重要性就會顯露無疑。現(xiàn)階段我國的電網(wǎng)和電廠的運行狀態(tài)都伴隨著電力工業(yè)的飛速發(fā)展而同時發(fā)生著翻天覆地的變化,那么為了保障電力系統(tǒng)的安全可靠運行,實現(xiàn)繼電保護(hù)的四項基本要求,就需要繼電保護(hù)專業(yè)的硬件技術(shù)和技術(shù)理論也同步提高�？梢詫崿F(xiàn)正確合理動作的繼電保護(hù)裝置可以將事故消除在萌芽階段防止其進(jìn)一步擴(kuò)大,也能保護(hù)電氣一次設(shè)備的安全。作為發(fā)電廠內(nèi)最為重要的電氣主設(shè)備,發(fā)電機(jī)的結(jié)構(gòu)顯得十分復(fù)雜且造價高昂,所以對于配置在發(fā)電機(jī)中的相關(guān)保護(hù)配置也一直都是最為復(fù)雜的,只有通過合理的繼電保護(hù)整定計算和對保護(hù)系統(tǒng)的正確配置,才能提高發(fā)電機(jī)的安全運行并在出現(xiàn)事故時將損失降到最低。隨著經(jīng)濟(jì)建設(shè)的發(fā)展,我國電網(wǎng)的單機(jī)裝機(jī)容量也在飛速增大,我國現(xiàn)階段存在于電力系統(tǒng)中的主力發(fā)電機(jī)組里600MW的燃煤機(jī)組依舊占據(jù)主導(dǎo)地位。因此,對于分析裝機(jī)容量為600WM的燃煤式火電廠中所配置的繼電保護(hù)裝置,總結(jié)在其中出現(xiàn)的問題并給出修改建議,仍然具有普遍研究意義。本文以大唐國際王灘電廠在運的兩臺600MW燃煤式火力發(fā)電廠做為研究主體,通過考察其電氣系統(tǒng)參數(shù)與配置情況,討論所涉及到的繼電保護(hù)相關(guān)內(nèi)容。在論文中會先從分析我國現(xiàn)行的火力發(fā)電廠中所使用的繼電保護(hù)系統(tǒng)現(xiàn)狀入手,了解并總結(jié)出火力發(fā)電廠中繼電保護(hù)專業(yè)的基本要求,尤其是關(guān)于發(fā)電機(jī)變壓器組和廠用電系統(tǒng)中對繼電保護(hù)系統(tǒng)的共性配置要求,然后結(jié)合王灘電廠的發(fā)變組系統(tǒng)和廠用電系統(tǒng)的時機(jī)特點,依照相關(guān)繼電保護(hù)整定要求,討論所涉及到的各項保護(hù)的定值計算方法。最后通過對王灘電廠在實際運行過程中發(fā)現(xiàn)的一些問題,提出合理化建議,最后基于對一些難題的思考,對繼電保護(hù)技術(shù)的發(fā)展進(jìn)行一定的猜測和討論。
[Abstract]:The relay protection system has become an indispensable part of the power system. Once there are faults or abnormal conditions in the operation of the power system, the importance of the relay protection system will be revealed. At the present stage, the operation state of power grid and power plant in our country is accompanied by the rapid development of power industry and at the same time has undergone earth-shaking changes. In order to ensure the safe and reliable operation of the power system, the four basic requirements of relay protection are realized. The hardware technology and technical theory of relay protection need to be improved simultaneously. The relay protection device, which can realize the correct and reasonable operation, can prevent the accident from expanding further in the embryonic stage, and can also protect the safety of the electrical primary equipment. As the most important electrical main equipment in the power plant, the structure of the generator is very complex and the cost is very high, so the configuration of the related protection in the generator has always been the most complex. Only through reasonable relay protection setting calculation and the correct configuration of the protection system can the safe operation of the generator be improved and the loss be reduced to the minimum in the event of accident. With the development of economic construction, the installed capacity of power grid in China is increasing rapidly, and the coal-fired units of 600MW still occupy the leading position in the main generating units of power system in our country at the present stage. Therefore, it is of general significance to analyze the relay protection devices in coal-fired power plants with installed capacity of 600WM, summarize the problems and give some suggestions for modification. This paper takes two 600MW coal-fired thermal power plants in operation of Datang International Wangtan Power Plant as the main research body, and discusses the relaying protection related to the electrical system parameters and configuration. In this paper, the author first analyzes the current situation of relay protection system used in thermal power plants in our country, and summarizes the basic requirements of relay protection in thermal power plants. Especially about the common configuration requirements of relay protection system in generator and transformer set and auxiliary power system, and then according to the relevant relay protection setting requirements according to the timing characteristics of generating and transformer group system and auxiliary power system in Wangtan Power Plant. The method of calculating the fixed value of each protection involved is discussed. Finally, through some problems found in the actual operation of Wangtan Power Plant, some reasonable suggestions are put forward. Finally, based on the consideration of some difficult problems, the development of relay protection technology is speculated and discussed.
【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】：TM621;TM77

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 董新洲;曹潤彬;王賓;施慎行;Dominik Bak;;印度大停電與繼電保護(hù)的三大功能[J];電力系統(tǒng)保護(hù)與控制;2013年02期

2 王增平;姜憲國;張執(zhí)超;張晉芳;劉國平;;智能電網(wǎng)環(huán)境下的繼電保護(hù)[J];電力系統(tǒng)保護(hù)與控制;2013年02期

3 何世恩;姚旭;徐善飛;;大規(guī)模風(fēng)電接入對繼電保護(hù)的影響與對策[J];電力系統(tǒng)保護(hù)與控制;2013年01期

4 焦在強(qiáng);;大規(guī)模風(fēng)電接入的繼電保護(hù)問題綜述[J];電網(wǎng)技術(shù);2012年07期

5 畢兆東;王寧;夏彥輝;劉蔚;劉一民;徐彭亮;;基于動態(tài)短路電流計算的繼電保護(hù)定值在線校核系統(tǒng)[J];電力系統(tǒng)自動化;2012年07期

6 尹項根;李振興;劉穎彤;劉寶;;廣域繼電保護(hù)及其故障元件判別問題的探討[J];電力系統(tǒng)保護(hù)與控制;2012年05期

7 陳國炎;張哲;尹項根;;廣域繼電保護(hù)分層系統(tǒng)結(jié)構(gòu)的網(wǎng)絡(luò)拓?fù)湓O(shè)計[J];電力系統(tǒng)保護(hù)與控制;2012年04期

8 丁偉;何奔騰;王慧芳;陳夢驍;許巍;;廣域繼電保護(hù)系統(tǒng)研究綜述[J];電力系統(tǒng)保護(hù)與控制;2012年01期

9 李振興;尹項根;張哲;鄧星;王育學(xué);;分區(qū)域廣域繼電保護(hù)的系統(tǒng)結(jié)構(gòu)與故障識別[J];中國電機(jī)工程學(xué)報;2011年28期

10 李振興;尹項根;張哲;何志勤;;有限廣域繼電保護(hù)系統(tǒng)的分區(qū)原則與實現(xiàn)方法[J];電力系統(tǒng)自動化;2010年19期

，

本文編號：2201061