本文選題：風(fēng)力發(fā)電 + 頻率穩(wěn)定�。� 參考：《華北電力大學(xué)》2014年碩士論文

【摘要】：作為最成熟和最具發(fā)展前景的清潔發(fā)電技術(shù)，風(fēng)力發(fā)電近年來(lái)保持著強(qiáng)勁的發(fā)展勢(shì)頭，大規(guī)模風(fēng)電并網(wǎng)運(yùn)行將成為必然趨勢(shì)。更具規(guī)模化的風(fēng)力發(fā)電不僅順應(yīng)了全球能源結(jié)構(gòu)調(diào)整的戰(zhàn)略目標(biāo)，同時(shí)也對(duì)相關(guān)技術(shù)領(lǐng)域提出了更高的要求和挑戰(zhàn)。 本文在已有的風(fēng)力發(fā)電技術(shù)研究基礎(chǔ)之上，針對(duì)大規(guī)模風(fēng)電并網(wǎng)運(yùn)行后所帶來(lái)的頻率穩(wěn)定性問(wèn)題，以風(fēng)電場(chǎng)的有功功率控制策略為對(duì)象開(kāi)展研究工作。 首先，分析了風(fēng)力發(fā)電的基本原理與風(fēng)電機(jī)組的分類，并詳細(xì)介紹了恒速恒頻風(fēng)力發(fā)電機(jī)組、雙饋異步風(fēng)力發(fā)電機(jī)組和永磁直驅(qū)風(fēng)力發(fā)電機(jī)組的基本結(jié)構(gòu)與運(yùn)行特點(diǎn)；針對(duì)主流機(jī)型（雙饋型風(fēng)力發(fā)電機(jī)組）建立其數(shù)學(xué)模型，并在MATLAB中搭建實(shí)現(xiàn)。在此基礎(chǔ)之上，分析了風(fēng)力發(fā)電并網(wǎng)運(yùn)行給電力系統(tǒng)頻率穩(wěn)定性帶來(lái)的影響。 其次，風(fēng)力發(fā)電機(jī)組有功控制是風(fēng)電場(chǎng)有功控制過(guò)程中的重要環(huán)節(jié)之一，因此介紹了風(fēng)力發(fā)電機(jī)組的有功功率控制策略�；诓煌L(fēng)速的劃分，風(fēng)力發(fā)電機(jī)組有低風(fēng)速、中風(fēng)速和高風(fēng)速三種控制模式，并且在三種控制模式下，風(fēng)力發(fā)電機(jī)組都能夠很好地進(jìn)行有功功率控制，，為發(fā)揮風(fēng)電場(chǎng)的輔助調(diào)頻功能提供了必要條件。 最后，在已有的研究基礎(chǔ)上，針對(duì)規(guī)�；L(fēng)電并網(wǎng)所帶來(lái)的頻率問(wèn)題，從風(fēng)電場(chǎng)側(cè)出發(fā)，介紹了一種具有輔助調(diào)頻功能的風(fēng)電場(chǎng)有功功率控制策略。當(dāng)系統(tǒng)頻率偏差超過(guò)限值時(shí)，風(fēng)電場(chǎng)切換至輔助調(diào)控模式，從而能夠主動(dòng)參與一部分頻率調(diào)節(jié)工作，可以在一定程度上緩解常規(guī)電廠的調(diào)頻壓力，加快頻率恢復(fù)的速度與時(shí)間。
[Abstract]:As the most mature and the most promising clean generation technology, wind power generation has maintained a strong momentum of development in recent years. Large-scale wind power grid operation will become an inevitable trend. More scale wind power generation not only complies with the strategic target of global energy structure adjustment, but also puts forward higher requirements on relevant technical fields in the same time. And challenge.
Based on the research of the existing wind power generation technology, this paper aims at the problem of frequency stability caused by large-scale wind power grid operation, and carries out research work on the active power control strategy of wind farm.
Firstly, the basic principle of wind power generation and the classification of wind turbine are analyzed, and the basic structure and operation characteristics of the constant speed constant frequency wind generator, the doubly fed asynchronous wind turbine and the permanent magnet direct drive wind turbine are introduced in detail, and the mathematical model is established for the mainstream model (double fed wind turbine), and in the MATLAB Based on this, the influence of grid connected wind power generation on the frequency stability of power system is analyzed.
Secondly, the active control of the wind turbine is one of the important links in the active control of the wind farm. Therefore, the active power control strategy of the wind turbine is introduced. Based on the division of the wind speed, the wind turbine has three control modes with low wind speed, middle wind speed and high wind speed, and the wind generator under the three control modes. The whole group can perform active power control well, which provides a necessary condition for giving full play to the auxiliary frequency modulation function of wind farms.
Finally, on the basis of the existing research, in view of the frequency problem brought by the large-scale wind power grid connected to the grid, the active power control strategy of the wind farm with auxiliary FM function is introduced from the wind farm side. When the frequency deviation exceeds the limit value, the wind farm switches to the auxiliary regulation mode, so that it can actively participate in a part of frequency. The adjustment work can relieve the FM pressure of conventional power plants to a certain extent, and speed up the speed and time of frequency recovery.
【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
【分類號(hào)】：TM614

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