本文選題：雙饋風(fēng)電場(chǎng) + 串聯(lián)補(bǔ)償　； 參考：《重慶大學(xué)》2014年碩士論文

【摘要】：隨著風(fēng)電機(jī)組單機(jī)容量和風(fēng)電場(chǎng)規(guī)模的增大，風(fēng)電場(chǎng)與電力系統(tǒng)的相互作用和影響逐漸增強(qiáng)，特別是隨著風(fēng)火打捆的輸送方式的實(shí)施以及遠(yuǎn)距離、高串補(bǔ)度的點(diǎn)對(duì)網(wǎng)輸電系統(tǒng)的規(guī)劃，大容量風(fēng)電場(chǎng)的并網(wǎng)運(yùn)行可能存在加劇系統(tǒng)次同步振蕩事故的風(fēng)險(xiǎn)，為了探究風(fēng)電場(chǎng)并網(wǎng)后系統(tǒng)次同步振蕩機(jī)理，提高大容量風(fēng)電場(chǎng)并網(wǎng)安全穩(wěn)定運(yùn)行能力，本文以并網(wǎng)雙饋風(fēng)電場(chǎng)為例，研究含風(fēng)電場(chǎng)的電力系統(tǒng)次同步振蕩特性及其抑制策略。 本文的研究?jī)?nèi)容主要包括以下幾部分： ①根據(jù)推導(dǎo)的風(fēng)力機(jī)傳動(dòng)鏈、雙饋發(fā)電機(jī)、轉(zhuǎn)子側(cè)變頻器、以及同步發(fā)電機(jī)等小信號(hào)模型，建立含雙饋風(fēng)電場(chǎng)的電力系統(tǒng)小信號(hào)穩(wěn)定性分析的詳細(xì)模型，并在DigSILENT/PowerFactory平臺(tái)上搭建各主要部件模型和控制系統(tǒng)，為進(jìn)一步開(kāi)展次同步振蕩特性研究奠定基礎(chǔ)。 ②為了研究風(fēng)電場(chǎng)并網(wǎng)對(duì)汽輪發(fā)電機(jī)次同步振蕩影響，以IEEE第一標(biāo)準(zhǔn)測(cè)試為例，采用特征值分析方法，分析了含雙饋風(fēng)電場(chǎng)的系統(tǒng)次同步振蕩模態(tài)，并通過(guò)時(shí)域仿真進(jìn)行驗(yàn)證。在此基礎(chǔ)上，研究雙饋風(fēng)電場(chǎng)不同運(yùn)行點(diǎn)、風(fēng)電場(chǎng)參與調(diào)度的無(wú)功大小對(duì)系統(tǒng)次同步振蕩模態(tài)的影響規(guī)律。 ③為了提高大容量風(fēng)電場(chǎng)參與系統(tǒng)次同步振蕩的抑制能力，提出雙饋風(fēng)電場(chǎng)抑制系統(tǒng)次同步振蕩的機(jī)理分析。通過(guò)引入有功-轉(zhuǎn)速型和無(wú)功-轉(zhuǎn)速型傳遞函數(shù)，分別推導(dǎo)了雙饋風(fēng)電場(chǎng)有功和無(wú)功功率對(duì)系統(tǒng)阻尼系數(shù)大小和性質(zhì)的表達(dá)式，并獲得其提供系統(tǒng)正阻尼的條件。 ④為了設(shè)計(jì)在全次同步頻段提供有效正阻尼的附加阻尼控制策略，，根據(jù)獲得的有功-轉(zhuǎn)速型和無(wú)功-轉(zhuǎn)速型傳遞函數(shù)的相角范圍，通過(guò)PID相位補(bǔ)償控制器的參數(shù)優(yōu)化，分別提出了雙饋風(fēng)電場(chǎng)有功和無(wú)功功率附加阻尼控制策略，并與無(wú)抑制措施時(shí)的仿真效果進(jìn)行對(duì)比。 上述研究成果對(duì)風(fēng)電并網(wǎng)后電力系統(tǒng)次同步振蕩現(xiàn)象的分析和電力系統(tǒng)穩(wěn)定運(yùn)行具有重要的參考價(jià)值，將為抑制含風(fēng)電場(chǎng)的電力系統(tǒng)次同步振蕩策略研究奠定理論基礎(chǔ)和決策支持。
[Abstract]:With the increase of wind turbine capacity and wind farm scale, the interaction and influence between wind farm and power system is gradually enhanced, especially with the implementation of wind and fire bundles transportation and long distance. In order to explore the mechanism of sub-synchronous oscillation in wind farm, the planning of point-to-grid transmission system with high series-compensation degree and the connection operation of large capacity wind farm may increase the risk of sub-synchronous oscillation accident of the system, in order to explore the mechanism of sub-synchronous oscillation of the system after the wind farm is connected to the grid. In order to improve the safe and stable operation ability of large capacity wind farm, this paper studies the subsynchronous oscillation characteristics of power system with wind farm and its suppression strategy, taking the grid-connected doubly-fed wind farm as an example. The main research contents of this paper are as follows: 1 according to the small signal model of wind turbine transmission chain, doubly-fed generator, rotor side converter and synchronous generator, etc. The detailed model of small signal stability analysis of power system with doubly-fed wind farm is established, and the main components model and control system are built on the platform of DigSIL / PowerFactory. In order to study the influence of wind farm grid on the subsynchronous oscillation of turbogenerator, the method of eigenvalue analysis is used to test the first standard test of IEEE. The subsynchronous oscillation modes of the system with doubly-fed wind farm are analyzed and verified by time domain simulation. On this basis, the influence of reactive power of wind farm on the mode of sub-synchronous oscillation is studied. 3 in order to improve the suppression ability of large capacity wind farm to participate in the sub-synchronous oscillation of the system, the influence of reactive power of wind farm on the mode of sub-synchronous oscillation is studied. In this paper, the mechanism of suppressing the sub-synchronous oscillation in a doubly-fed wind farm is presented. By introducing the transfer function between active power and rotational speed and reactive power and rotating speed, the expressions of the damping coefficient and the property of the active power and reactive power on the system are derived, respectively. In order to design an additional damping control strategy to provide effective positive damping in the full synchronous frequency band, according to the phase angle range of the active power-rotational speed transfer function and the reactive power-rotational speed transfer function, Through the parameter optimization of pid phase compensation controller, an additional damping control strategy for active and reactive power of doubly-fed wind farm is proposed, and the simulation results are compared with the simulation results without restraining measures. The above research results have important reference value for the analysis of sub-synchronous oscillation phenomenon of power system after wind power grid connection and the stable operation of power system. It will lay a theoretical foundation and decision support for the study of subsynchronous oscillation strategy of power system with wind farm.
【學(xué)位授予單位】：重慶大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：TM614

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 蔣平;王貫義;;抑制次同步諧振的并聯(lián)結(jié)構(gòu)PSS參數(shù)優(yōu)化[J];電工技術(shù)學(xué)報(bào);2009年10期

2 高本鋒;肖湘寧;趙成勇;郭春林;趙洋;;混合串聯(lián)補(bǔ)償裝置抑制次同步諧振的研究[J];電工技術(shù)學(xué)報(bào);2010年11期

3 吳熙;蔣平;;SEDC與TCSC聯(lián)合抑制次同步振蕩的研究[J];電工技術(shù)學(xué)報(bào);2012年04期

4 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

5 余穎輝,張保會(huì);汽輪發(fā)電機(jī)組軸系扭振研究的發(fā)展與展望[J];電力系統(tǒng)自動(dòng)化;1999年10期

6 張東輝;謝小榮;劉世宇;楊庭志;;串補(bǔ)輸電系統(tǒng)中次同步諧振的模態(tài)阻尼推導(dǎo)[J];電力系統(tǒng)自動(dòng)化;2008年06期

7 顧威;李興源;王渝紅;穆子龍;魏巍;;UPFC對(duì)風(fēng)電場(chǎng)次同步諧振的抑制作用[J];電力系統(tǒng)自動(dòng)化;2010年08期

8 朱凌志;陳寧;韓華玲;;風(fēng)電消納關(guān)鍵問(wèn)題及應(yīng)對(duì)措施分析[J];電力系統(tǒng)自動(dòng)化;2011年22期

9 朱旭凱;周孝信;田芳;劉敏;李亞樓;張星;;基于本地測(cè)量信號(hào)的TCSC抑制次同步振蕩附加控制[J];電力系統(tǒng)自動(dòng)化;2011年23期

10 周長(zhǎng)春,徐政,王冠;多機(jī)電力系統(tǒng)扭振相互作用的研究綜述[J];電網(wǎng)技術(shù);2004年06期

相關(guān)博士學(xué)位論文 前1條

1 郝正航;雙饋風(fēng)電機(jī)組的暫態(tài)行為及其對(duì)電力系統(tǒng)穩(wěn)定性影響[D];天津大學(xué);2011年

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