【摘要】：隨著我國電網(wǎng)負荷的不斷增加,電網(wǎng)建設(shè)也在迅速發(fā)展。但是由于經(jīng)濟發(fā)展程度的不同,我國供電負荷的區(qū)域性也極為明顯。東部沿海地區(qū)的用電量尤其巨大,以浙江省的電網(wǎng)為例,負荷相對來說較為集中,電網(wǎng)的結(jié)構(gòu)比較緊密,這些原因?qū)е逻@一地區(qū)的短路電流水平也在不斷而且迅速地增大,影響了電力系統(tǒng)的安全穩(wěn)定運仃和國民生產(chǎn)的正常運作。 與此同時,在各種不同種類的短路故障當(dāng)中,位于變壓器近區(qū)的短路故障是危害最為嚴重的。不僅對變壓器的絕緣造成極大地損傷,最后導(dǎo)致的停電范圍更大,影響更為惡劣。因此,限制短路電流首先必須應(yīng)該限制發(fā)生于變壓器近區(qū)故障的短路電流。 本文總結(jié)和分析了幾種限制短路電流的方法,特別針對近區(qū)短路,結(jié)合本人在工作中的實際情況,重點介紹了現(xiàn)場設(shè)備中應(yīng)用較多的短路電流限制開斷器,從原理和使用效果上對這種限流措施進行展開,肯定其達到限制近區(qū)短路電流的目的,確保了發(fā)生故障以后設(shè)備的安全。
[Abstract]:With the continuous increase of power grid load, power grid construction is also developing rapidly. However, due to the difference of economic development, the region of power supply load in China is also very obvious. The power consumption in the eastern coastal areas is especially huge. Taking Zhejiang power grid as an example, the load is relatively concentrated and the structure of the power grid is relatively close. These reasons cause the level of short-circuit current in this area to increase continuously and rapidly. It affects the security and stability of power system and the normal operation of national production. At the same time, among all kinds of short-circuit faults, the short-circuit fault located near the transformer is the most serious. Not only the insulation of transformers is damaged greatly, but also the range of power outages is larger and the influence is worse. Therefore, to limit the short circuit current, the short circuit current occurring in the near region fault of transformer must be limited first. In this paper, several methods of limiting short circuit current are summarized and analyzed. Especially for near area short circuit, combined with the actual situation of my work, the emphasis is put on the application of short circuit current limiting breaker in field equipment. From the aspects of principle and application effect, the current limiting measures are carried out, and the purpose of limiting the short-circuit current in the near region is confirmed, which ensures the safety of the equipment after the failure.
【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】：TM471

【參考文獻】

相關(guān)期刊論文 前10條

1 譚凌云,吳兆麟;橋式固態(tài)短路限流器在電網(wǎng)中的應(yīng)用研究[J];電力系統(tǒng)自動化;2000年18期

2 肖霞,李敬東,葉妙元,唐躍進,程時杰;超導(dǎo)限流器研究與開發(fā)的最新進展[J];電力系統(tǒng)自動化;2001年10期

3 李繼紅,黃良寶,徐謙,李海翔;一種降低短路電流水平的措施——母線分裂運行[J];電力系統(tǒng)自動化;2001年14期

4 費萬民,呂征宇,吳兆麟,譚凌云,江道灼;三相接地系統(tǒng)短路故障限流器及其控制策略[J];電力系統(tǒng)自動化;2002年08期

5 費萬民,呂征宇,譚凌云,江道灼,吳兆麟;三相不接地系統(tǒng)短路故障限流器的研究[J];電力系統(tǒng)自動化;2002年16期

6 趙彩宏,田立軍,鄒貴彬,江世芳;FCL對電力系統(tǒng)暫態(tài)穩(wěn)定性影響的機理分析與仿真[J];電力自動化設(shè)備;2001年02期

7 李明 ,張小青;電力系統(tǒng)故障限流器技術(shù)的研究[J];電氣時代;2005年04期

8 袁娟;劉文穎;董明齊;史可琴;范越;;西北電網(wǎng)短路電流的限制措施[J];電網(wǎng)技術(shù);2007年10期

9 謝應(yīng)祥;變電站電氣設(shè)計需合理采用限流措施[J];廣東電力;2001年01期

10 李品德,劉軍虎,王永紅,王一正;電力系統(tǒng)故障電流限制器的應(yīng)用和研制現(xiàn)狀[J];高壓電器;2000年03期

，

本文編號：2213769