ANALYSIS OF AFFECTING FACTORS OF ICE COATING LOAD ON WIND TURBINEBLADE BASED ON RESPONSE SURFACE METHOD

Abstract

Abstract: In this paper, the NACA4412 airfoil blade is taken as the research object. By constructing the wind turbine test bench, the four-factor and three-level test schemes are designed using the response surface analysis method by taking the wind speed, temperature, humidity and running time as the influencing factors. The overall deformation of the iced blade was used as the evaluation index to explore the influence of four factors on the ice load of the wind turbine blade. Using Design-Expert 8.0 mathematics statistics software, a multi-variable response model of blade deformation of ice-covered wind turbine was established. The response surface relationship between the factor and the response deformation was analyzed to predict the deformation of ice-covered blades. The accuracy and reliability of the regression model are verified by experiments, which provides a theoretical basis for the research on wind load of wind turbine blades. This research is of great significance to further improve the stability of wind turbine operation and reduce the operation and maintenance cost.

Key words: icing load, wind turbine blades, response surface method, deformation

CLC Number:

TB332

LI Jiang-chao, CHENG Bin, LI Xi-yang. ANALYSIS OF AFFECTING FACTORS OF ICE COATING LOAD ON WIND TURBINEBLADE BASED ON RESPONSE SURFACE METHOD[J]. Fiber Reinforced Plastics/Composites, 2018, 0(9): 17-22.

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