基于方位角權(quán)系數(shù)分配的獨立變槳距控制
發(fā)布時間:2018-05-25 19:58
本文選題:氣動載荷 + 方位角。 參考:《控制工程》2014年06期
【摘要】:風(fēng)力發(fā)電機組功率不斷提升,風(fēng)機槳葉隨之增大,風(fēng)機在額定風(fēng)速以上運行時,槳葉所受氣動載荷逐漸增大,為風(fēng)機安全運行埋下了隱患,因此希望減小這一載荷。針對這一問題,在充分分析風(fēng)電機組結(jié)構(gòu)及其運行規(guī)律的基礎(chǔ)上,依據(jù)空氣動力學(xué)原理,提出了一種基于槳葉方位角權(quán)系數(shù)分配的獨立變槳距控制方法。同時,針對風(fēng)機輸出功率要求穩(wěn)定的目標(biāo),設(shè)計了一種模糊-PID控制器。仿真結(jié)果表明,風(fēng)機在高于額定風(fēng)速以上運行時,這種模糊-PID控制下,基于槳葉方位角權(quán)系數(shù)分配的獨立變槳距控制策略,可以改善風(fēng)機輸出功率并有效地減小槳葉氣動載荷。
[Abstract]:As the power of wind turbine increases continuously, the blade of wind turbine increases, and when the wind turbine is running above rated wind speed, the aerodynamic load on the blade increases gradually, which buries a hidden danger for the safe operation of the fan, so it is hoped to reduce this load. In order to solve this problem, an independent variable pitch control method based on the distribution of azimuth weight coefficient of propeller blade is proposed on the basis of fully analyzing the structure of wind turbine and its operation law, and according to the principle of aerodynamics. At the same time, a fuzzy-pid controller is designed for the stable output power of fan. The simulation results show that when the fan is running above the rated wind speed, the fuzzy-PID control strategy based on the allocation of azimuth weight coefficient of the blade can improve the output power of the fan and effectively reduce the aerodynamic load of the blade.
【作者單位】: 遼寧工程技術(shù)大學(xué)電氣與控制工程學(xué)院;遼寧機電職業(yè)技術(shù)學(xué)院黃海汽車工程學(xué)院;
【基金】:遼寧省教育廳科學(xué)技術(shù)研究(2007T075)
【分類號】:TM315
【參考文獻】
相關(guān)期刊論文 前3條
1 何玉林;黃帥;蘇東旭;周宏麗;金鑫;王磊;;變速風(fēng)力發(fā)電機組最大風(fēng)能追蹤與槳距控制[J];控制工程;2012年03期
2 胡巖;劉s,
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