ICOPE-15-C026 Research of Wind Turbine Blade Surface Fault Diagnosis Based on Computer Vision Method

2015 ◽  
Vol 2015.12 (0) ◽  
pp. _ICOPE-15--_ICOPE-15-
Author(s):  
Zhang Lei ◽  
Yang Tao ◽  
Shuhong Huang
Keyword(s):  
Computer Vision ◽  
Fault Diagnosis ◽  
Wind Turbine ◽  
Turbine Blade ◽  
Wind Turbine Blade ◽  
Blade Surface

Research on Wind Turbine Blade Surface Damage Fault On-Line Monitoring and Diagnosis System

2013 ◽  
Author(s):  
Yongxin Feng ◽  
Tao Yang ◽  
Xiaowen Deng ◽  
Qingshui Gao ◽  
Chu Zhang ◽  
...  
Keyword(s):  
Wind Turbine ◽  
Turbine Blade ◽  
Wind Farm ◽  
Turbine Blades ◽  
Surface Damage ◽  
Wind Turbine Blade ◽  
Offshore Wind ◽  
Blade Surface ◽  
Diagnosis System ◽  
On Line

The basic fault types of wind turbine blades are introduced, a novel blade surface damage detection method based on machine vision is being suggested. The network of wind turbine blade surface damage fault on-line monitoring and fault diagnosis system has already been developed. The system architecture, software modules and functions are described, and given application example illustrates the usefulness and effectiveness of this system. The result shows that this system can monitor the surface damage failure of the blade in real time, and can effectively reduce the blade’s maintenance costs for wind farms, especially offshore wind farm.

Performance Investigation of Non-Linear Insulator against Surface Tracking on Wind Turbine Blade Surface

2014 ◽  
Vol 911 ◽  
pp. 190-194
Author(s):  
Watthanapong Sasimma ◽  
Amnart Suksri
Keyword(s):  
Zinc Oxide ◽  
Wind Turbine ◽  
Turbine Blade ◽  
Saline Solution ◽  
Research Work ◽  
Aluminium Oxide ◽  
Wind Turbine Blade ◽  
Blade Surface ◽  
Surface Tracking ◽  
Modified Epoxy

This research work investigates the surface degradation of wind turbine blade surface insulator which is made from modified epoxy resin mixed with Zinc oxide (ZnO) and Aluminium oxide (Al2O3) in different percentage as a filler elements. Accelerated test with AC voltage of 4.5 kV 50 Hz with NH4Cl saline solution using flow rate of contaminant equals to 0.6 ml/min according to IEC 60587 standard. It was found that, the solid insulators which has 30 % of Zinc oxide (ZnO) and 20% of Aluminium oxide (Al2O3) fillers prolong the process of surface tracking to the order of 5.41 for Zinc oxide (ZnO) filler and also to the order of 30.68 for Aluminium oxide (Al2O3) filler. On the other hand, if the amount of Aluminium oxide (Al2O3) filler is more than 20% by weight, it will lead to a rapid tracking phenomena.

scholarly journals Design and Analysis of Dimple Arrangement on a Small Wind Turbine Blade

2019 ◽  
Vol 9 (2) ◽  
pp. 3552-3557
Keyword(s):  
Wind Turbine ◽  
Turbine Blade ◽  
Aerodynamic Performance ◽  
Wind Turbine Blade ◽  
Performance Estimation ◽  
Cfd Analysis ◽  
Blade Surface ◽  
Ansys Fluent ◽  
Small Wind Turbine ◽  
Overall Performance

This article predominantly focuses on the performance estimation of a small wind turbine blade when a dimple arrangement is made along its upper surface. The dimple arrangement is grooved at two locations: 0.25c and 0.5c, where c is the chord length of the turbine blade. A CFD analysis using the k-ε turbulence model is carried out on the selected blade sections NREL S823 and S822. The continuity and momentum equations are solved using ANSYS Fluent Solver to assess the aerodynamic performance of the proposed design. The effect of introducing a dimple on the blade surface has shown to delay the flow separation, with the formation of vortices. Further, the overall performance of the blade is simulated using GH BLADED and the results acquired are discussed.

scholarly journals Defect Monitoring of a Wind Turbine Blade Surface by using Surface Wave Damping

2017 ◽  
Vol 23 (1) ◽  
pp. 90-94
Author(s):  
Kyung-Hwan Kim ◽  
Young-Jin Yang ◽  
Hyun-Bum Kim ◽  
Hyung-Chan Yang ◽  
Jong-Hwan Lim ◽  
...  
Keyword(s):  
Surface Wave ◽  
Wind Turbine ◽  
Turbine Blade ◽  
Wind Turbine Blade ◽  
Blade Surface ◽  
Wave Damping

The Study of the Aerodynamic Force of Wind Turbine Blade by Using FLUENT and MATLAB

2011 ◽  
Vol 225-226 ◽  
pp. 794-797
Author(s):  
He Huang ◽  
Sheng Jun Wu ◽  
Zhuo Qiu Li ◽  
Jin Fan Fei
Keyword(s):  
Wind Turbine ◽  
Turbine Blade ◽  
Cross Section ◽  
Large Scale ◽  
Aerodynamic Force ◽  
Wind Turbine Blade ◽  
Wind Pressure ◽  
Solid Model ◽  
Blade Surface ◽  
Analytical Work

In this paper, large scale wind turbine blade has been taken for example and two harmful conditions have been chosen as the study targets. Taking a 25 m long wind turbine blade, its solid model is built in CAE. Then take advantage of Computational Fluid Dynamics software-FLUENT to analyze and simulate wind pressure of blade surface acted by aerodynamic force. By means of the numerical method to make curve fitting to bring wind pressure to bear on each cross section of blade accurately, and import it into ANSYS to do further analytical work. It shows that the work should be the firm foundation for further analysis of the wind turbine blade.

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