Support Structure Optimization of High-Pile Cap Supported Horizontal Axis Wind Turbine System Based on BESO Algorithm

doi:10.16183/j.cnki.jsjtu.2022.182

Abstract

Abstract:

The study of reliable support structure is of great significance to the safety of large-scaled horizontal axis wind turbine (HAWT) system. In this paper, for cap-supported HAWT with high pile, the bidirectional evolutional structure optimization (BESO) algorithm based on inversely proportional deletion rate was used to optimize its support structure. Using computational fluid dynamics (CFD) and the principle of pile-soil interaction, the finite element model of HAWT was established, where the wind load and pile-soil interaction were taken into consideration. The reliability of the structural optimization method was verified through the comparison of the dynamic response characteristics between the initial and the optimized model. The results show that the current BESO algorithm can effectively generate a novel support structure form for high-pile HAWT, whose dynamic response is significantly reduced. The results can provide useful references for HAWTs designs.

Key words: horizontal axis wind turbine (HAWT), high-pile cap foundation, bidirectional progressive structural optimization algorithm (BESO), wind-induced dynamic response

CLC Number:

P751
O 352

ZHAN Lingyu, HE Wenjun, ZHOU Dai, HAN Zhaolong, ZHU Hongbo, ZHANG Kai, TU Jiahuang. Support Structure Optimization of High-Pile Cap Supported Horizontal Axis Wind Turbine System Based on BESO Algorithm[J]. Journal of Shanghai Jiao Tong University, 2023, 57(8): 939-947.

Figures/Tables 12

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参数	数值	参数	数值
塔筒底部外径,D/m	6	额定输出功率/MW	5
塔筒顶部外径/m	3.87	叶片长度,L/m	61.5
塔架高度,H₀/m	90	额定风速/(m·s^-1)	11.4
转子质量/kg	110000	额定叶尖速度/(m·s^-1)	80
机舱质量/kg	240000	塔架质量/kg	591942