【摘要】：隨著社會(huì)經(jīng)濟(jì)和科學(xué)技術(shù)的不斷發(fā)展，電力系統(tǒng)已經(jīng)從傳統(tǒng)的獨(dú)立封閉的“發(fā)-用”結(jié)構(gòu)演變成復(fù)雜的社會(huì)化網(wǎng)絡(luò)，通過區(qū)域性電網(wǎng)互聯(lián)來實(shí)現(xiàn)資源的優(yōu)化配置，成為各國電網(wǎng)未來發(fā)展的趨勢。在此背景下，當(dāng)系統(tǒng)中的薄弱環(huán)節(jié)發(fā)生故障時(shí)，如果不能及時(shí)采取正確的措施，將致使故障連鎖性擴(kuò)大，造成大面積停電事故的發(fā)生。 輸電斷面作為聯(lián)結(jié)電網(wǎng)兩相同區(qū)域的重要部分，集中體現(xiàn)了電網(wǎng)的薄弱環(huán)節(jié)，其安全穩(wěn)定與否對系統(tǒng)的安全穩(wěn)定運(yùn)行具有直接影響，通常是電網(wǎng)運(yùn)行人員予以監(jiān)視和控制的重點(diǎn)。然而，現(xiàn)有關(guān)于輸電斷面的研究工作理論化和系統(tǒng)化程度不高，針對斷面搜索識別方法的實(shí)用性較弱，并且對輸電斷面安全性方面研究過少。鑒于以上不足，本文主要從以下三個(gè)方面開展了研究。 首先，對現(xiàn)有文獻(xiàn)關(guān)于輸電斷面的研究內(nèi)容進(jìn)行了系統(tǒng)化和理論化的整理�？偨Y(jié)歸納了現(xiàn)有文獻(xiàn)關(guān)于輸電斷面識別的4種搜索方法。此外，基于輸電斷面安全性對系統(tǒng)安全可靠運(yùn)行的重要性，對輸電斷面的安全穩(wěn)定性分析作了細(xì)致說明。 其次，提出一種利用線路電氣介數(shù)指標(biāo)值來辨識得到系統(tǒng)中的關(guān)鍵支路，并由這些支路來形成系統(tǒng)的關(guān)鍵輸電斷面的方法。引入了實(shí)用化的系統(tǒng)狀態(tài)分區(qū)模型及關(guān)鍵斷面排序方法，建立了一套利用電氣介數(shù)搜索系統(tǒng)關(guān)鍵輸電斷面的方法流程。最后在IEEE-39節(jié)點(diǎn)系統(tǒng)上，和已有搜索方法的作了對比分析；并且運(yùn)用本文方法對我國特高壓電網(wǎng)進(jìn)行斷面搜索，研究結(jié)果驗(yàn)證了本文所提方法的可行性和有效性。 最后，結(jié)合本文研究工作的課題來源，，以我國“三華”特高壓電網(wǎng)未來某規(guī)劃期的初始網(wǎng)架和目標(biāo)網(wǎng)架為基礎(chǔ)，利用PSD-BPA電力系統(tǒng)計(jì)算分析程序，重點(diǎn)研究了鄂爾多斯/山西電源基地送出斷面安全穩(wěn)定性、華東電網(wǎng)受端負(fù)荷中心受入斷面的安全穩(wěn)定性以及川西外送直流斷面的安全穩(wěn)定性，研究結(jié)果對制定規(guī)劃期內(nèi)過渡階段電網(wǎng)的穩(wěn)定控制措施，確保系統(tǒng)安全可靠運(yùn)行具有重要參考價(jià)值。
[Abstract]:With the continuous development of social economy and science and technology, the power system has evolved from the traditional independent closed "hair-use" structure into a complex social network, which realizes the optimal allocation of resources through the interconnection of regional power grids. It has become the trend of the future development of the power grid in various countries. In this context, when the weak links in the system failure, if the correct measures can not be taken in time, it will lead to the expansion of fault cascading, resulting in a large area of power failure. As an important part of connecting the two same areas of the power network, the transmission section embodies the weak link of the power network, and its safety and stability have a direct impact on the safe and stable operation of the system. It is usually the focus of monitoring and control for power grid operators. However, the existing research work on transmission section is not theoretical and systematic, the feasibility of searching and identifying the transmission section is weak, and the research on transmission section safety is too little. In view of the above deficiencies, this paper mainly from the following three aspects of research. Firstly, the research contents of transmission section are systematized and theorized. In this paper, four searching methods of transmission section identification in existing literature are summarized. In addition, based on the importance of the safety of transmission section to the safe and reliable operation of the system, the analysis of the safety stability of the transmission section is explained in detail. Secondly, a method is proposed to identify the key branches of the system and form the key transmission sections of the system by using the electrical intermediate index values of the system. A practical system state partition model and a key section sorting method are introduced, and a set of key transmission sections searching method flow is established by using electrical medium. Finally, the IEEE-39 node system is compared with the existing search methods, and the cross-section search of UHV power grid in China is carried out by using this method. The results show that the proposed method is feasible and effective. Finally, based on the initial grid and target grid of "Sanhua" UHV power grid in China, the PSD-BPA power system calculation and analysis program is used. The safety and stability of the feed section of the Ordos / Shanxi power supply base, the safety and stability of the receiving section of the receiving end load center of East China Power Grid and the safety stability of the DC section of the west Sichuan power supply are studied emphatically. The results of the study have important reference value for formulating the stability control measures of the power network in the transition stage of the planning period and ensuring the safe and reliable operation of the system.
【學(xué)位授予單位】：華中科技大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2014
【分類號】：TM732

【相似文獻(xiàn)】

相關(guān)期刊論文 前10條

1 劉曉賢;;對銀南電網(wǎng)開展“六復(fù)核”工作的探討[J];寧夏電力;2004年03期

2 陳彥鋒;;創(chuàng)新電網(wǎng)安全經(jīng)濟(jì)運(yùn)行的對策[J];中國高新技術(shù)企業(yè);2007年15期

3 林森;;2008年3月華東電網(wǎng)電網(wǎng)運(yùn)行總體情況[J];華東電力;2008年04期

4 ;電網(wǎng)運(yùn)行培訓(xùn)部[J];山東電力高等專科學(xué)校學(xué)報(bào);2010年02期

5 吳敏;;冰凍威脅電網(wǎng)安全 廣西電網(wǎng)調(diào)度中心積極防控[J];廣西電業(yè);2011年01期

6 姜瑞峰;;加強(qiáng)電網(wǎng)運(yùn)行維護(hù)安全工作的措施[J];農(nóng)村電氣化;2013年06期

7 蒙定中;大電網(wǎng)與大機(jī)組的協(xié)調(diào)(一)[J];電力系統(tǒng)自動(dòng)化;1986年05期

8 ;提高認(rèn)識、狠抓落實(shí)，努力開創(chuàng)我局電網(wǎng)運(yùn)行工作的新局面──張惠清總工程師在青海電網(wǎng)運(yùn)行工作會(huì)議上的總結(jié)講話[J];青海電力;1996年03期

9 諸兵;;淺談電網(wǎng)運(yùn)行技術(shù)的優(yōu)化[J];科技與企業(yè);2013年24期

10 唐長春;;電網(wǎng)運(yùn)行中自動(dòng)化程度的探究[J];電子技術(shù)與軟件工程;2013年23期

相關(guān)會(huì)議論文 前10條

1 ;全國電網(wǎng)運(yùn)行與控制標(biāo)準(zhǔn)化技術(shù)委員會(huì)成立[A];《電站信息》2009年第1期[C];2009年

2 閔勇;魯宗相;喬穎;徐飛;;風(fēng)電從“并網(wǎng)”到“融入”大電網(wǎng)運(yùn)行的轉(zhuǎn)變[A];2010年電力系統(tǒng)自動(dòng)化學(xué)術(shù)研討會(huì)論文集[C];2010年

3 韓自奮;;甘肅電網(wǎng)氣象信息服務(wù)系統(tǒng)應(yīng)用功能探討[A];水電站梯級調(diào)度及自動(dòng)控制技術(shù)研討會(huì)論文集[C];2008年

4 吳琛;李玲芳;張丹;張杰;程e

本文編號：2184569