發(fā)布時(shí)間：2018-01-19 15:35

  本文關(guān)鍵詞： 輸電線路 雷擊故障 雷電 故障定位 數(shù)據(jù)庫　出處：《電子科技大學(xué)》2014年碩士論文　論文類型：學(xué)位論文

【摘要】：隨著現(xiàn)代信息處理技術(shù)等綜合智能系統(tǒng)近年來的快速發(fā)展,使得輸電線路設(shè)備在線監(jiān)測成為可能,監(jiān)測雷擊活動(dòng),從而準(zhǔn)確定位故障點(diǎn)位,也變成了一種可行性操作途徑。雷擊導(dǎo)致的跳閘障礙往往造成巨大的經(jīng)濟(jì)損失和不良的社會(huì)影響。既給電力部門造成了直接的經(jīng)濟(jì)損失,也給居民用電及工農(nóng)業(yè)生產(chǎn)帶來不良影響。一旦線路遭受雷擊跳閘,如何盡快的查找到故障點(diǎn)位,快速進(jìn)行處置,及時(shí)恢復(fù)送電,降低損失,成為一個(gè)重要的課題。相關(guān)資料統(tǒng)計(jì)顯示超過80%的線路故障是由單相短路接地引起的。概率緊隨其后的是兩相短路接地故障,其所占的比例為2%到3%之間,而三相短路接地故障發(fā)生的概率僅為1%到3%左右,在很長一段時(shí)間內(nèi)都無法通過技術(shù)手段去詳細(xì)的定位雷擊故障的位置。我國的電網(wǎng)發(fā)展非常的迅速,電網(wǎng)中的線路和其他元器件設(shè)備的檢查和更新任務(wù)會(huì)越來越繁重。所以一個(gè)高可靠性的電網(wǎng)必將是線路出現(xiàn)問題的概率低,并且一旦出現(xiàn)事故,該電網(wǎng)負(fù)責(zé)公司能夠立馬準(zhǔn)確定位故障來源,并且迅速消除故障,恢復(fù)電網(wǎng)供電功能。雷電數(shù)據(jù)系統(tǒng)的功能是給客戶提供及時(shí)的雷電數(shù)據(jù)、線路故障的搜查、范圍和回路各種數(shù)據(jù)的統(tǒng)計(jì)、回路的編輯等各種功能。最終客戶是利用雷電網(wǎng)絡(luò)來獲取雷電信息的。雷電網(wǎng)站使用信息技術(shù)來得到客戶的需求,再把客戶的需求傳送到雷電服務(wù)系統(tǒng)。雷電服務(wù)系統(tǒng)將雷電信息從信息庫中提取,再結(jié)合有關(guān)的地理數(shù)據(jù),變成客戶需求的格式,利用IIS變成網(wǎng)頁的方式傳遞給最終客戶。本文搭建的電網(wǎng)雷電監(jiān)測系統(tǒng)主要是對(duì)電力公司的電網(wǎng)進(jìn)行實(shí)時(shí)監(jiān)測,期望在該系統(tǒng)的積極作用下,能夠準(zhǔn)確實(shí)時(shí)地記錄下該地區(qū)雷電對(duì)電網(wǎng)的影響情況,如雷打造成事故的概率,定位線路故障源等問題。同時(shí)也根據(jù)該處的實(shí)際情況制定出一系列的應(yīng)對(duì)措施,盡力減小因雷電因素造成電網(wǎng)故障的概率,提高該處電網(wǎng)的可靠性和高維修性。本系統(tǒng)的設(shè)計(jì)與實(shí)現(xiàn)能夠很好的實(shí)現(xiàn)對(duì)輸電線路雷擊故障的定位,為在電網(wǎng)中排除雷擊故障提供了全方位的支持,能夠使電網(wǎng)雷擊故障的管理走向信息化。
[Abstract]:With the rapid development of integrated intelligent systems such as modern information processing technology in recent years, it is possible for on-line monitoring of transmission line equipment, monitoring lightning strike activities, so as to accurately locate fault points. It has also become a feasible way of operation. Tripping barriers caused by lightning often cause huge economic losses and adverse social impact, which have caused direct economic losses to the power sector. Once the line is struck and tripped by lightning, how to find the fault point as soon as possible, to deal with it quickly, to restore the power supply in time, and to reduce the loss. It has become an important subject. Statistics show that more than 80% of the line faults are caused by single-phase short-circuit grounding, followed by the probability of two-phase short-circuit grounding fault. Its proportion is between 2% and 3%, while the probability of three-phase short-circuit grounding fault is only about 1% to 3%. In a very long period of time, it is impossible to locate the location of lightning fault in detail by technical means. The development of power grid in China is very rapid. The task of checking and updating the line and other components in the power network will be more and more heavy. Therefore, a high reliability power network will have a low probability of line problems, and once there is an accident. The power grid is responsible for the company to locate the source of the fault immediately and quickly eliminate the fault and restore the power supply function of the grid. The function of the lightning data system is to provide customers with timely lightning data and line fault search. Range and circuit of various data statistics, circuit editing and other functions. The ultimate customer is to use the lightning network to obtain lightning information. Lightning website uses information technology to obtain customer needs. Then the customer's needs are transmitted to the lightning service system, which extracts the lightning information from the information base, and then combines the related geographical data, and becomes the format of the customer's demand. The lightning monitoring system built in this paper is mainly used to monitor the power grid in real time, in the hope of the active role of the system. It can record the impact of lightning on the power grid accurately and real-time, such as the probability of the lightning accident, locating the fault source of line, etc. At the same time, a series of countermeasures are worked out according to the actual situation of the area. Try to reduce the probability of power network failure caused by lightning factors, improve the reliability and high maintainability of the power system. The design and implementation of the system can achieve a good location of transmission line lightning fault. It provides omni-directional support for the elimination of lightning strike fault in power grid, and can make the management of lightning strike fault in power grid information.
【學(xué)位授予單位】：電子科技大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：TM75;TM863

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本文編號(hào)：1444810