基于概率分配法的含風(fēng)電電力系統(tǒng)概率小擾動(dòng)穩(wěn)定分析
[Abstract]:With the continuous development and utilization of wind power and the continuous improvement of permeability, the randomness and volatility of wind power bring great uncertainties to the power system, which makes its safe and stable operation facing severe challenges. Therefore, the influence of large-scale wind power on the small disturbance stability of power system is worthy of attention. Because the traditional deterministic small disturbance analysis method can not take the uncertainty of wind power into account, it can not truly reflect the safe operation level of the actual power system. Based on the probabilistic collocation method (PCM), this paper presents a probabilistic small disturbance stability analysis method for interconnected power systems taking into account the uncertainty of wind power, which is suitable for studying the influence of wind power access on the stability of interconnected power systems. In this paper, four common probabilistic analysis methods in power system uncertainty assessment, Monte Carlo method, Point estimation method PEM, semi-invariant method and probabilistic distribution method, are introduced in detail. The accuracy and efficiency of the above methods are compared by the probabilistic power flow calculation, and the advantages of PCM compared with other methods in power system uncertainty assessment are summarized. Secondly, the application of PCM in traditional power system probabilistic small disturbance analysis is studied. According to the principle and basic concept of eigenvalue analysis, the PCM model of input variables is established, and the analysis flow of probabilistic small disturbance characteristic of traditional power system based on PCM is introduced in detail. The simulation results show that the oscillation frequency and the probability distribution of damping ratio of dominant oscillation mode are obtained by PCM method. The results are consistent with MC method and have good accuracy, and the calculation efficiency is much higher than that of MC method. The small disturbance characteristics of the system can be obtained accurately and efficiently. Finally, a method of probabilistic small disturbance stability analysis for wind power system based on PCM analysis is proposed. Considering the discontinuity of wind power output in practice, the PCM probability model of wind power output is established, and the evaluation index of probabilistic small disturbance stability for interconnected power system with wind power is proposed. The detailed steps of probabilistic small disturbance stability analysis for wind power interconnected power system based on PCM are given. The simulation analysis of a new England 10-machine 39-bus system with wind power shows that the wind power output PCM model can accurately reflect the operating characteristics of wind power, and with the increase of wind power access capacity, the PCM model can accurately reflect the operating characteristics of wind power. The small disturbance stability of the whole wind power system is decreasing.
【學(xué)位授予單位】:華中科技大學(xué)
【學(xué)位級(jí)別】:碩士
【學(xué)位授予年份】:2015
【分類號(hào)】:TM614;TM712
【相似文獻(xiàn)】
相關(guān)期刊論文 前10條
1 劉憑,羅時(shí)鈞,鄂秦;翼型跨音速小擾動(dòng)勢(shì)流-邊界層計(jì)算[J];空氣動(dòng)力學(xué)學(xué)報(bào);1986年03期
2 房喜;印永華;楊萬開;吳國(guó)偉;史可琴;朱方;范越;崔麗華;;750kV輸變電示范工程系統(tǒng)小擾動(dòng)試驗(yàn)分析[J];電網(wǎng)技術(shù);2006年24期
3 秦超;余貽鑫;;基于安全域的含風(fēng)電電力系統(tǒng)概率小擾動(dòng)穩(wěn)定分析[J];電力系統(tǒng)自動(dòng)化;2014年10期
4 張揚(yáng)軍,陳乃祥,曹智鵬,趙春元;不可壓非定常小擾動(dòng)流場(chǎng)的數(shù)值模擬[J];清華大學(xué)學(xué)報(bào)(自然科學(xué)版);1997年08期
5 潘靜;洪義;;懸掛在做微小擾動(dòng)小船下物體運(yùn)動(dòng)的分析[J];渭南師范學(xué)院學(xué)報(bào);2012年12期
6 伍紅;趙霞;周家啟;;電力系統(tǒng)小擾動(dòng)概率穩(wěn)定性的蒙特卡羅仿真[J];電力系統(tǒng)自動(dòng)化;2009年11期
7 賈宏杰;李聰利;莊劍;;計(jì)及勵(lì)磁系統(tǒng)和原動(dòng)機(jī)動(dòng)態(tài)時(shí)系統(tǒng)小擾動(dòng)穩(wěn)定分析[J];天津電力技術(shù);2004年04期
8 邵銳,劉憲林,王克文;多機(jī)電力系統(tǒng)小擾動(dòng)穩(wěn)定分析的解耦降階法[J];繼電器;2005年08期
9 李秀英,羅時(shí)鈞;跨音速細(xì)長(zhǎng)旋轉(zhuǎn)體零升力時(shí)的壓力和波阻力的有限差分計(jì)算[J];西北工業(yè)大學(xué)學(xué)報(bào);1983年02期
10 李秀英;羅時(shí)鈞;;跨音速細(xì)長(zhǎng)旋轉(zhuǎn)體零升力時(shí)的壓力和波阻力的有限差分計(jì)算[J];西北工業(yè)大學(xué)學(xué)報(bào);1983年S1期
相關(guān)會(huì)議論文 前1條
1 陳李賓;周任軍;湯放奇;葉佳明;;考慮小擾動(dòng)穩(wěn)定約束的最優(yōu)潮流[A];中國(guó)高等學(xué)校電力系統(tǒng)及其自動(dòng)化專業(yè)第二十四屆學(xué)術(shù)年會(huì)論文集(上冊(cè))[C];2008年
相關(guān)重要報(bào)紙文章 前1條
1 ;廣東電網(wǎng)公司提升小擾動(dòng)掌控水平[N];中國(guó)電力報(bào);2006年
相關(guān)博士學(xué)位論文 前2條
1 林姿峰;基于信號(hào)激勵(lì)法的小擾動(dòng)安全在線評(píng)估[D];清華大學(xué);2004年
2 元博;含風(fēng)電的電力系統(tǒng)備用決策及小擾動(dòng)隨機(jī)穩(wěn)定分析[D];華北電力大學(xué);2014年
相關(guān)碩士學(xué)位論文 前9條
1 周楨鈞;六相電勵(lì)磁同步風(fēng)電機(jī)組的簡(jiǎn)化動(dòng)態(tài)模型及小擾動(dòng)穩(wěn)定分析[D];重慶大學(xué);2015年
2 黃瑩;基于概率分配法的含風(fēng)電電力系統(tǒng)概率小擾動(dòng)穩(wěn)定分析[D];華中科技大學(xué);2015年
3 伍紅;基于蒙特卡羅模擬的概率小擾動(dòng)穩(wěn)定分析[D];重慶大學(xué);2009年
4 邵銳;電力系統(tǒng)小擾動(dòng)穩(wěn)定分析與控制的解耦降階法[D];鄭州大學(xué);2005年
5 李曉蕾;基于詳細(xì)模型的多機(jī)電力系統(tǒng)小擾動(dòng)穩(wěn)定降階分析方法研究[D];鄭州大學(xué);2003年
6 鄧學(xué)華;電力系統(tǒng)小擾動(dòng)穩(wěn)定約束下的平衡解與最優(yōu)潮流研究[D];長(zhǎng)沙理工大學(xué);2008年
7 劉喜成;含柔性元件的電力系統(tǒng)小擾動(dòng)穩(wěn)定研究[D];鄭州大學(xué);2009年
8 徐昊;綜合負(fù)荷模型對(duì)多機(jī)系統(tǒng)小擾動(dòng)穩(wěn)定的影響研究[D];華北電力大學(xué)(北京);2011年
9 那廣宇;基于小擾動(dòng)穩(wěn)定域的電力系統(tǒng)概率安全分析[D];天津大學(xué);2007年
,本文編號(hào):2124194
本文鏈接:http://www.sikaile.net/kejilunwen/dianlilw/2124194.html