本文選題：風(fēng)電場集群 + Hopf分岔��； 參考：《西安理工大學(xué)》2017年碩士論文

【摘要】：大規(guī)模風(fēng)力集群發(fā)電是解決環(huán)境污染和能源危機(jī)的有效途徑,山于我國能源和負(fù)荷的逆向分布,風(fēng)電接入電網(wǎng)多采用風(fēng)電場集群,高壓輸送模式。隨著大容量風(fēng)電場接入高電壓等級輸電網(wǎng)中,風(fēng)風(fēng)屯接入對主網(wǎng)的電壓穩(wěn)定性產(chǎn)生了顯著影響。本文基于大規(guī)模風(fēng)電場集群無功電壓支撐能力弱,系統(tǒng)抗擾動能力差等特點(diǎn),著重從系統(tǒng)無功源的運(yùn)行特性、電壓穩(wěn)定分析、風(fēng)電集群系統(tǒng)低頻振蕩現(xiàn)象以及無功優(yōu)化控制策略四個(gè)方面介紹了當(dāng)前風(fēng)電集群系統(tǒng)接入電網(wǎng)電壓穩(wěn)定性研究概況。木文首先分析了風(fēng)電集群系統(tǒng)常見動態(tài)無功補(bǔ)償設(shè)備動態(tài)特性，基于新疆哈密實(shí)際風(fēng)電集群系統(tǒng)在DlgSILENT/Power Factory中建立了計(jì)及風(fēng)功率波動特性的風(fēng)電場動態(tài)模型，改進(jìn)了傳統(tǒng)微分代數(shù)方程(differcntial algcbra equation, DAE)模型,為克服傳統(tǒng)潮流計(jì)算僅基于單斷面運(yùn)行信息的不足,提出一種基于Hopf分岔的改進(jìn)連續(xù)潮流法(Continuation Power Flow,CPF)與時(shí)域仿真相結(jié)合的動態(tài)分析法。其次,本文基于實(shí)測風(fēng)功率信息,采用一種快速計(jì)算系統(tǒng)穩(wěn)定裕度算法,該方法提供了一個(gè)接近系統(tǒng)最終收斂點(diǎn)的估計(jì)值，，提高了算法收斂速度,保證所得分岔點(diǎn)即為最先導(dǎo)致系統(tǒng)失穩(wěn)的極限點(diǎn)。然后通過雙參數(shù)“兩步法”追蹤系統(tǒng)二維Hopf分岔曲線,以此分析風(fēng)電集群地區(qū)無功補(bǔ)償設(shè)備動態(tài)響應(yīng)特性及電壓控制效果。最后,針對新疆哈密地區(qū)風(fēng)電場異常振蕩事故,本文通過考慮多時(shí)間尺度無功源運(yùn)行特性,探尋風(fēng)電集群系統(tǒng)異常振蕩的可能誘發(fā)因素。提出一種新型改進(jìn)果蠅尋優(yōu)算法(modified fruit fly optimization algorithm，，MFOA)協(xié)調(diào)優(yōu)化靜止無功補(bǔ)償器(Static Var Compensator,SVC)陰尼控制器參數(shù)以提高風(fēng)電集群系統(tǒng)穩(wěn)定性,對新疆哈密風(fēng)電場集群的仿真計(jì)算結(jié)果表明所提方法的有效性。
[Abstract]:Large-scale wind power cluster power generation is an effective way to solve the environmental pollution and energy crisis. Wind farm cluster and high-voltage transmission mode are used to connect wind power to the power grid. With the large capacity wind farm connected to the high voltage transmission network, the wind wind access has a significant effect on the voltage stability of the main network. Based on the characteristics of the large scale wind farm cluster, such as weak reactive power and voltage supporting ability and poor system anti-disturbance ability, this paper focuses on the analysis of the operation characteristics and voltage stability of the system reactive power source. Four aspects of wind power cluster system low frequency oscillation and reactive power optimal control strategy are introduced in this paper. The current research situation of wind power cluster system access voltage stability is introduced. Firstly, the paper analyzes the dynamic characteristics of common dynamic reactive power compensation equipment in wind power cluster system. Based on the actual wind power cluster system in Xinjiang Hami, a wind farm dynamic model considering the fluctuation characteristics of wind power is established in DlgSILENT/Power Factory. In this paper, the traditional differential algebraic equation differcninitial algcbra equation, DAE) model is improved. In order to overcome the shortcoming of traditional power flow calculation based on single section operation information, a dynamic analysis method based on Hopf bifurcation is proposed, which combines continuous Power flow method with time domain simulation. Secondly, based on the measured wind power information, a fast stability margin algorithm is used to calculate the stability margin of the system. This method provides an estimate close to the final convergence point of the system, and improves the convergence speed of the algorithm. The guaranteed bifurcation point is the first limit point which leads to the instability of the system. Then, the two-parameter "two-step method" is used to trace the two-dimensional Hopf bifurcation curve of the system, so as to analyze the dynamic response characteristics and voltage control effect of reactive power compensation equipment in wind power cluster area. Finally, in view of the abnormal oscillation accident of wind farm in Hami area, Xinjiang, this paper explores the possible inducing factors of abnormal oscillation of wind power cluster system by considering the operation characteristics of reactive power source in multi-time scale. In order to improve the stability of wind power cluster system, a new modified fruit fly optimization algorithm (modified fruit fly optimization algorithm) is proposed to optimize the parameters of static Var compensator (SVC) controller in order to improve the stability of wind power cluster system. The simulation results of Hami wind farm cluster in Xinjiang show the effectiveness of the proposed method.
【學(xué)位授予單位】：西安理工大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：TM614;TM712;TM714.3

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 薛安成;王清;畢天姝;;雙饋風(fēng)機(jī)與同步機(jī)小擾動功角互作用機(jī)理分析[J];中國電機(jī)工程學(xué)報(bào);2016年02期

2 盧錦玲;何振民;何同祥;魏方園;徐超;;計(jì)及暫態(tài)電壓安全性的風(fēng)電場無功電壓協(xié)調(diào)控制[J];電網(wǎng)技術(shù);2015年10期

3 嚴(yán)干貴;孫兆鍵;穆鋼;鄭太一;;面向集電系統(tǒng)電壓調(diào)節(jié)的風(fēng)電場無功電壓控制策略[J];電工技術(shù)學(xué)報(bào);2015年18期

4 崔楊;徐蒙福;唐耀華;彭龍;嚴(yán)干貴;;基于集電系統(tǒng)無功靈敏度的雙饋風(fēng)電場無功控制策略[J];電網(wǎng)技術(shù);2015年09期

5 崔楊;彭龍;仲悟之;嚴(yán)干貴;尹佳楠;蒲睿;;雙饋型風(fēng)電場群無功分層協(xié)調(diào)控制策略[J];中國電機(jī)工程學(xué)報(bào);2015年17期

6 姚波;樊艷芳;;集群風(fēng)電區(qū)域振蕩原因分析及對策研究[J];可再生能源;2015年08期

7 呂思昕;申旭輝;陳得治;劉觀起;趙曉偉;高峰;;大規(guī)模風(fēng)電并網(wǎng)對寧夏電網(wǎng)失步振蕩的影響[J];可再生能源;2015年08期

8 崔正湃;王皓靖;馬鎖明;劉輝;劉海濤;;大規(guī)模風(fēng)電匯集系統(tǒng)動態(tài)無功補(bǔ)償裝置運(yùn)行現(xiàn)狀及提升措施[J];電網(wǎng)技術(shù);2015年07期

9 夏安俊;魯宗相;閔勇;阮佳陽;趙俊屹;楊超穎;;雙饋異步發(fā)電機(jī)風(fēng)電場聚合模型研究[J];電網(wǎng)技術(shù);2015年07期

10 張琛;李征;蔡旭;高強(qiáng);汪寧勃;;雙饋風(fēng)電機(jī)組軸系扭振的穩(wěn)定與控制[J];電工技術(shù)學(xué)報(bào);2015年10期

相關(guān)博士學(xué)位論文 前1條

1 李鵬;從平衡點(diǎn)到振蕩[D];天津大學(xué);2004年

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