Engineering & Science – Wind Power

Master’s thesis in engineering


Country: Denmark
Working hours: Fulltime
Application deadline: 2019-01-31T23:59:59.0000000
Workplace: Gentofte

Do you want to kickstart your career and turn complex challenges into innovative renewable solutions? 
 
Write your master’s thesis with us and face a wide range of complex engineering and scientific challenges. You’ll get the opportunity to develop and deploy some of the world’s largest renewable infrastructure assets, solving complex challenges that require innovative solutions in close cooperation with other leading specialists, leveraging each other’s know-how and expertise. 
 
Overall project description  
Project name: Characterising extreme load conditions offshore: identification and interpretation of gust events 
 
As the rotor sizes keep increasing, gust load cases are becoming design drivers for wind turbine support structures. However, the spatial distribution, shape of gusts and the way gusts are modelled in the standards have never been thoroughly challenged. Therefore, this project aims to analyse a set of high-frequency offshore wind measurement data sets in order to identify gust events, interpret and characterise gusts based on the identified events, and challenge the interpretation suggested by the standards based on the outcome of the data analysis.  
 
Detailed project description 
In this project description, the term ‘gust’ designates and covers the following events: 
  • Extreme Operating Gust (EOG) 
  • Extreme Direction Change (EDC) 
  • Extreme Coherent gust with Direction change (ECD) 
  • Extreme Wind Shear (EWS). 
 
The objectives of the project can be split into two categories and listed as follows: 
 
Primary: 
  • Investigation of spatial distribution of gust events (EOG, EDC, ECD and EWS) over rotor in both size and shape  
  • Assessment of size and spatial coherence of gusts at different locations using different high-frequency data sets. 

Secondary: 
  • Revisiting the terminology behind the current IEC standards and rethinking their interpretation 
  • Proposing updates to the standards on quantifying gust size and shape.  
 
The project will include the following analysis and can be split into the following work packages: 
 
Work package 1 (WP1): 
Literature review (both standards and publications) regarding gust modelling. Characterise and define the different type of gust events (EOG, EDC, ECD and EWS). 
 
WP2: 
Scan and perform data analyses on the provided data sets to identify gust events. 
 
WP3: 
Based on the events identified in WP2, assess the spatial and temporal distribution (coherence) of gusts over a typical rotor size within the available data sets (consider gust size and occurrence dependency on localisation). 
 
WP4: 
Validate/challenge models gathered in WP1 against gust events identified in WP2 and the outcome of the analyses in WP3. 
 
WP5: 
Revisit the interpretation of the standards and propose updates to standards on quantifying gust event size, shape and distribution. 
 
Your competences include that you 
  • have strong data analysis skills  
  • have knowledge and experience with wind data and wind data analysis 
  • are familiar with wind energy from an engineering point of view 
  • have a structured and enthusiastic approach to the challenge of doing a master’s thesis in an industry setting 
  • speak and write English fluently. 
 
Functional area: Engineering – foundations 
 
Number of students: One or two 
Academic level: MSc 
 
Working hours: 37 hours/week 
 
Project supervisor(s)/department(s) 
Lucas Marion, Load Engineer in Loads, Aerodynamics & Control, telephone: +45 99 55 49 72 
 
Would you like to help shape the renewable technologies of the future? 
Send your application to us as soon as possible and no later than 31 January 2019 as we’ll be conducting interviews on a continuous basis. 
 
Desired start date: February or March 2019 
Additional info: You’ll conduct most of your studies at our office in Gentofte 
 
Please don’t hesitate to contact windthesis@orsted.dk if you’d like to know more about the position. 
 
About Ørsted 
Headquartered in Denmark, Ørsted’s 6,000 employees develop, construct and operate offshore wind farms, bioenergy plants and innovative waste-to-energy solutions and provide smart energy products to its customers. Ørsted Offshore Wind’s 2,000 employees have developed and constructed the largest portfolio of offshore wind farms in Northern Europe, and we’re expanding with international activities in the US and Asia-Pacific. For more information on Ørsted, visit orsted.com. 
 
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