Smart load control on large-scale wind turbine blades due to extreme coherent gust with direction change

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	Smart load control on large-scale wind turbine blades due to extreme coherent gust with direction change
	Zhang, M. M.; Tan, B.; Xu, J. Z.
刊名	JOURNAL OF RENEWABLE AND SUSTAINABLE ENERGY
	2015-03-01
卷号	7 期号:2
英文摘要	The control of a typical extreme load with varying velocity and direction, i.e., International Electro-technical Commission Extreme Coherent Gust with Direction Change (ECD) load, was investigated on an Upwind/National Renewable Energy Laboratory 5MW reference wind turbine using a newly developed smart blade system. The control action was implemented through the local perturbation of the Deformable Trailing Edge Flap (DTEF) on the blade surface and thus flow-blade system. The investigations were separately conducted within four time zones, depending on the complex yaw or/and pitching functions of the turbine. It was found that, without DTEF control, the flapwise root moment and tip deflection of the blades experienced rather complicated fluctuations due to the ECD load, together with the influence of blade yaw and pitching. On the other hand, the smart rotor control was very effective to reduce both blade flapwise root moment and tip deflection up to 30% and even more. The good control performance lied in the altered nature of the flow-blade interactions by the local controllable DTEF perturbation to change the in-phased fluid-structure synchronization into anti-phased collision at dominant load frequencies, thus significantly enhancing the damping of fluid-structure system and impairing their correlations. Consequently, the ECD load on the rotor and even drive-chain components would be greatly suppressed. (C) 2015 AIP Publishing LLC.
WOS标题词	Science & Technology ; Technology
类目[WOS]	Energy & Fuels
研究领域[WOS]	Energy & Fuels
关键词[WOS]	TRAILING-EDGE FLAPS ; MODEL-PREDICTIVE CONTROL ; ROTOR CONTROL ; REDUCTION
收录类别	SCI
语种	英语
WOS记录号	WOS:000353834300010
公开日期	2015-12-22
内容类型	期刊论文
源URL	[http://ir.etp.ac.cn/handle/311046/98950]
专题	工程热物理研究所_中国科学院工程热物理所（论文库）_期刊论文（SCI）
作者单位	Chinese Acad Sci, Inst Engn Thermophys, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Zhang, M. M.,Tan, B.,Xu, J. Z.. Smart load control on large-scale wind turbine blades due to extreme coherent gust with direction change[J]. JOURNAL OF RENEWABLE AND SUSTAINABLE ENERGY,2015,7(2).
APA	Zhang, M. M.,Tan, B.,&Xu, J. Z..(2015).Smart load control on large-scale wind turbine blades due to extreme coherent gust with direction change.JOURNAL OF RENEWABLE AND SUSTAINABLE ENERGY,7(2).
MLA	Zhang, M. M.,et al."Smart load control on large-scale wind turbine blades due to extreme coherent gust with direction change".JOURNAL OF RENEWABLE AND SUSTAINABLE ENERGY 7.2(2015).