【摘要】：隨著風(fēng)電場(chǎng)建設(shè)日趨大型化、規(guī)�；�,以及風(fēng)電在電力結(jié)構(gòu)中的比例不斷提高,風(fēng)力發(fā)電問(wèn)題已經(jīng)不再是單獨(dú)的發(fā)電技術(shù)問(wèn)題。風(fēng)力發(fā)電與電力系統(tǒng)之間的聯(lián)系越來(lái)越緊密,相互之間的作用也越來(lái)越復(fù)雜。為了準(zhǔn)確分析接入電力系統(tǒng)后,風(fēng)電場(chǎng)所表現(xiàn)出來(lái)的動(dòng)態(tài)特性以及給系統(tǒng)帶來(lái)的影響,需要對(duì)風(fēng)電場(chǎng)模型進(jìn)行深入研究�；陲L(fēng)電場(chǎng)本身具有的多時(shí)空尺度特性,本文分別對(duì)變速風(fēng)電機(jī)組的時(shí)間尺度和風(fēng)電場(chǎng)的空間尺度進(jìn)行研究,并建立了多尺度風(fēng)電場(chǎng)動(dòng)態(tài)聚合模型。 本文首先針對(duì)變速風(fēng)電機(jī)組,提出了多時(shí)間尺度建模方法,即按照其快慢動(dòng)態(tài)行為將風(fēng)電機(jī)組建模劃分為分鐘級(jí)時(shí)間尺度和秒級(jí)時(shí)間尺度。通過(guò)分析變速風(fēng)電機(jī)組各環(huán)節(jié)數(shù)學(xué)模型及其運(yùn)行控制特性,對(duì)變速風(fēng)電機(jī)組模塊化結(jié)構(gòu)下的每個(gè)模塊在不同時(shí)間尺度下的控制策略進(jìn)行研究,并在DIgSILENT/Power Factory仿真平臺(tái)上搭建實(shí)現(xiàn)。仿真結(jié)果表明了本文所建立的多時(shí)間尺度變速機(jī)組模型的準(zhǔn)確性及全面性,為風(fēng)電場(chǎng)建模提供了單機(jī)模型基礎(chǔ)。 其次,建立了考慮尾流效應(yīng)的風(fēng)速分布模型作為風(fēng)電場(chǎng)的風(fēng)能輸入模塊,并基于MATLAB編程實(shí)現(xiàn)形成不同時(shí)刻的風(fēng)速分布矩陣,為風(fēng)電場(chǎng)詳細(xì)模型的風(fēng)速輸入模塊提供參數(shù)矩陣,并為機(jī)組空間尺度劃分提供數(shù)據(jù)樣本。 最后,建立了變空間尺度的風(fēng)電場(chǎng)動(dòng)態(tài)聚合模型。通過(guò)分析風(fēng)電機(jī)組的運(yùn)行特性,提出了由風(fēng)速、機(jī)組有功出力、無(wú)功功率參考值、機(jī)組類(lèi)型以及出口電壓組成的風(fēng)電場(chǎng)的空間尺度劃分指標(biāo)體系�；谠撝笜�(biāo)體系采用改進(jìn)的κ-均值聚類(lèi)算法對(duì)同一空間關(guān)系中的機(jī)組群進(jìn)行聚類(lèi),并按照功率守恒定律對(duì)機(jī)組參數(shù)進(jìn)行等值計(jì)算。綜合上述計(jì)算結(jié)果,在DIgSILENT上建立了變空間尺度的風(fēng)電場(chǎng)動(dòng)態(tài)聚合模型并進(jìn)行仿真分析,結(jié)果表明本文建立的多尺度動(dòng)態(tài)聚合風(fēng)電場(chǎng)模型能夠很好地反映風(fēng)電場(chǎng)的出口特性,具有更接近于實(shí)際風(fēng)電場(chǎng)的動(dòng)態(tài)響應(yīng)。
[Abstract]:With the construction of wind farm becoming larger and the proportion of wind power in power structure increasing the problem of wind power generation is no longer a separate technical problem of power generation. The relationship between wind power generation and power system is more and more close, and the interaction between wind power generation and power system is becoming more and more complex. In order to accurately analyze the dynamic characteristics of wind farm and its influence on the power system, it is necessary to study the wind farm model deeply. Based on the multi-scale characteristics of wind farm, the time scale of wind turbine and the spatial scale of wind farm are studied in this paper, and the dynamic aggregation model of multi-scale wind farm is established. In this paper, a multi-time scale modeling method for variable-speed wind turbine is proposed. According to its fast and slow dynamic behavior, wind turbine modeling is divided into minute time scale and second time scale. By analyzing the mathematical model of each link of the variable speed wind turbine and its operation control characteristics, the control strategy of each module under the modular structure of the variable speed wind turbine under different time scales is studied. And build the implementation on the DIgSILENT/Power Factory simulation platform. The simulation results show the accuracy and comprehensiveness of the multi-time scale transmission unit model established in this paper, which provides a single model foundation for wind farm modeling. Secondly, the wind velocity distribution model considering wake effect is established as wind power input module of wind farm, and the wind speed distribution matrix at different times is realized based on MATLAB programming, which provides parameter matrix for wind speed input module of wind farm detailed model. Data samples are provided for the space scale partition of the unit. Finally, the dynamic aggregation model of wind farm with variable spatial scale is established. Based on the analysis of the operating characteristics of wind turbines, a spatial scale classification index system of wind farms composed of wind speed, unit active power, reactive power reference value, unit type and outlet voltage is proposed. Based on this index system, the improved 魏 -means clustering algorithm is used to cluster the units in the same spatial relationship, and the unit parameters are calculated according to the conservation law of power. Based on the above calculation results, the dynamic aggregation model of wind farm with variable spatial scale is established on DIgSILENT and simulated. The results show that the multi-scale dynamic aggregate wind farm model can well reflect the export characteristics of wind farm. The dynamic response of the wind farm is closer to that of the actual wind farm.
【學(xué)位授予單位】：華北電力大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類(lèi)號(hào)】：TM614

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 嚴(yán)干貴;李鴻博;穆鋼;崔楊;劉玉;;基于等效風(fēng)速的風(fēng)電場(chǎng)等值建模[J];東北電力大學(xué)學(xué)報(bào);2011年03期

2 黃梅;萬(wàn)航羽;;在動(dòng)態(tài)仿真中風(fēng)電場(chǎng)模型的簡(jiǎn)化[J];電工技術(shù)學(xué)報(bào);2009年09期

3 李輝;葉仁杰;高強(qiáng);趙猛;;傳動(dòng)鏈模型參數(shù)對(duì)雙饋風(fēng)電機(jī)組暫態(tài)性能影響[J];電機(jī)與控制學(xué)報(bào);2010年03期

4 米增強(qiáng);蘇勛文;余洋;王毅;吳濤;;雙饋機(jī)組風(fēng)電場(chǎng)動(dòng)態(tài)等效模型研究[J];電力系統(tǒng)自動(dòng)化;2010年17期

5 栗然;唐凡;劉英培;柯?lián)砬?張孝乾;;基于自適應(yīng)變異粒子群算法的雙饋風(fēng)電機(jī)組等值建模[J];電力系統(tǒng)自動(dòng)化;2012年04期

6 付勛波;郭金東;趙棟利;許洪華;;直驅(qū)式風(fēng)力發(fā)電系統(tǒng)的仿真建模與運(yùn)行特性研究[J];電力自動(dòng)化設(shè)備;2009年02期

7 楊曉波;岳程燕;謝海蓮;;用于電磁暫態(tài)仿真分析的永磁同步發(fā)電機(jī)風(fēng)電場(chǎng)模型聚合方法[J];電網(wǎng)技術(shù);2011年02期

8 高峰;周孝信;朱寧輝;蘇峰;安寧;;直驅(qū)式風(fēng)電機(jī)組機(jī)電暫態(tài)建模及仿真[J];電網(wǎng)技術(shù);2011年11期

9 江岳文;陳沖;溫步瀛;;雙饋風(fēng)力發(fā)電機(jī)組穩(wěn)態(tài)運(yùn)行特性分析[J];福州大學(xué)學(xué)報(bào)(自然科學(xué)版);2009年02期

10 陳浩;胡曉波;嚴(yán)干貴;李亞樓;張星;;直驅(qū)永磁風(fēng)力發(fā)電機(jī)組低電壓穿越的協(xié)調(diào)控制策略[J];電網(wǎng)技術(shù);2013年05期

，

本文編號(hào)：2428140