scholarly journals Evaluation and Stability Analysis of Onshore Wind Turbine Supporting Structures

2018 ◽  
Author(s):  
Chikako Fujiyama ◽  
Yasuhiro Koda ◽  
Noriaki Sento
Keyword(s):  
Stability Analysis ◽  
Wind Turbine ◽  
Onshore Wind ◽  
Supporting Structures

scholarly journals Deterioration of cracks in onshore wind turbine foundations

2018 ◽  
Vol 167 ◽  
pp. 121-131 ◽  
Author(s):  
Jack McAlorum ◽  
Marcus Perry ◽  
Grzegorz Fusiek ◽  
Pawel Niewczas ◽  
Iain McKeeman ◽  
...  
Keyword(s):  
Wind Turbine ◽  
Onshore Wind

Overview of Wind Turbine Field Failure Databases: A Discussion of the Requirements for an Analysis

2018 ◽  
Author(s):  
Roozbeh Bakhshi ◽  
Peter Sandborn
Keyword(s):  
Statistical Analysis ◽  
Wind Turbine ◽  
Wind Turbines ◽  
Wind Farms ◽  
Onshore Wind ◽  
Failure Times ◽  
Reliability Parameters ◽  
Failure Data ◽  
Offshore Installations ◽  
Field Failure

With renewable energy and wind energy in particular becoming mainstream means of energy production, the reliability aspect of wind turbines and their sub-assemblies has become a topic of interest for owners and manufacturers of wind turbines. Operation and Maintenance (O&M) costs account for more than 25% of total costs of onshore wind projects and these costs are even higher for offshore installations. Effective management of O&M costs depends on accurate failure prediction for turbine sub-assemblies. There are numerous models that predict failure times and O&M costs of wind farms. All these models have inputs in the form of reliability parameters. These parameters are usually generated by researchers using field failure data. There are several databases that report the failure data of operating wind turbines and researches use these failure data to generate the reliability parameters through various methods of statistical analysis. However, in order to perform the statistical analysis or use the results of the analysis, one must understand the underlying assumptions of the database along with information about the wind turbine population in the database such as their power rating, age, etc. In this work, we analyze the relevant assumptions and discuss what information is required from a database in order to improve the statistical analysis on wind turbines’ failure data.

Interval stability analysis of power systems with wind turbine based on three-mass shaft model

2019 ◽  
Vol 10 (11) ◽  
pp. 3181-3187
Author(s):  
Zhanhui Lu ◽  
Fanting Xu ◽  
Junqiang Wei ◽  
Fangcheng Lv
Keyword(s):  
Stability Analysis ◽  
Power Systems ◽  
Wind Turbine
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