外文翻譯--變速恒頻交流勵磁雙饋風力發(fā)電系統(tǒng)及其控制技術研究-其他專業(yè)-免費閱讀
【正文】 并以我國北方某風電場為例，仿真分析了該控制策略下，風速發(fā)生擾動變化和系統(tǒng)側發(fā)生故障時，單臺變速恒頻風電機組運行特性及風電機群與接入系統(tǒng)中關鍵節(jié)點的電壓特性。在穩(wěn)態(tài)特性方面，分析了變速恒頻雙饋風力發(fā)電機組的有功功率特性、無功功率特性和 PQ容量極限。為開發(fā)我國風電領域的新 技術，國家高技術研究發(fā)展計劃 (863)中資助了《兆瓦級變速恒頻風電機組》項目。 在分析了現(xiàn)有風力發(fā)電機并網(wǎng)技術的基礎 上，討論了交流勵磁變速恒頻異步雙饋風力發(fā)電機的并網(wǎng)控制，建立了基于磁場定向矢量控制、不受轉速變化影響的空載，負載和孤島并網(wǎng)三種并網(wǎng)控制方案。 第三、首次提出了由整流和逆變部分的調制比和相位差四個控制參數(shù)表征的用于雙饋機組的變頻器數(shù) 學模型，并依據(jù)變速恒頻雙饋風力發(fā)電機組組成構件的物理特性，建立了能表征變速恒頻風電機組特性的整體動態(tài)數(shù)學模型。 第六、創(chuàng)新性地提出了變速恒頻雙饋風電機群并網(wǎng)的分段分層實時優(yōu)化運行控制策略。 參考文獻 [1] F. Giraud and Z. M. Salameh, “ Winddriven variablespeed, variable frequency, doubleoutput, induction generators,” Electric Mach. Power Syst. , vol. 26, pp. 287297, 1998. [2] M. N. Eskander and M. T. ElHagry, “Optimal performance of double output induction generator used in WECS,”Electric Mach. Power Syst.,vol. 25, pp. 10351046, 1997. [3] E. Akpinar and P. Pillay, “Modeling and performance of slip energy recovery induction motor drives,”IEEE Trans. Energy Conversion, vol. 5, pp. 203210, Mar. 1990. [4]E. Akpinar and P. Pillay, “A puter program to predict he performance of slip energy recovery induction motor drives,”IEEE Trans. Energy Conversion , vol. 5, pp. 357365, June 1990. [5]J. B. Ekanayake, L. Holdsworth, X. Wu, N. Jenkins,“ Dynamic Modelling of Doubly Fed Induction Generator Wind Turbines” ,IEEE Trans. On power systems , No .2,May 2021,. [6] L. Refoufi, B. A. T. Alzahawi, A. G. Jack, “ (R)Analysis and modeling of the steady state behavior of the static Kramer induction generator,” IEEE Trans. On Energy Conversion , Vol. 14, No. 3, September 1999, pp. 333339. Research on VSCF AC Excitation Doubly fed Wind Energy Generation System and Its Control Technology R. Pen , J . , G. ABSTRACT:with the great development in manufacture of power electronic converter and its application technology， the variable speed wind turbine(VSWT)with large capacity has bee one primary technology directions of wind turbines． The VSWT with doubly—fed induction generator(DFIG)which can flexibly join wind turbio power system has turned into mainstream machine in the field of exploring wind energy in the world now． It is therefore important to study the technology， operation characteristics， safety and
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