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At the research group Wind Energy Systems, ForWind - Center for Wind Energy Research, Institute of Physics of the Carl von Ossietzky University of Oldenburg, there is a vacant position starting on 01 November 2019

Research Assistant (m/f/d)
(Salary according to TV-L E13, 100 %)

The focus will be on

Modelling and validation of wind farm control strategies
in high-fidelity simulations

Recently, the topic of wind farm control received a strong attention from both the scientific community and industry. In wind farm control, typically concepts of distributed control are employed to achieve control objectives with respect to mechanical and electrical loads, energy yield and grid code requirements on the individual turbine as well as system level. The complex aerodynamic interaction within a wind farm by wakes is not adequately taken into account in current industrial controllers.

Novel wind farm controllers capable of influencing and utilizing wake interaction could lead to improved operation, such as maximization of energy yield, reduction of turbine loads, or better tracking of a power reference set by a transmission system operator. However, to design wind farm controllers, improvements in modelling as well as in measurement and estimation concepts are required. ForWind - University of Oldenburg utilises its state of the art research infrastructures such as the new large turbulent wind tunnel, lidar windscanners and a dedicated high performance computing cluster. Novel and far reaching research activities are offered by a close link of lab and full-scale experiments with high fidelity simulations and the interdisciplinary cooperation of physicists, engineers and meteorologists. High fidelity simulations are of special importance for further development of wind farm engineering models because they allow testing of different wind farm layouts under various and repeatable inflow conditions.

Job Description
The main goal of this position is to further enhance the numerical methods and models for the development of wind farm control algorithms for different control objectives, including power maximization, active power control and load reduction. High fidelity large eddy simulations (LES) will be deployed to find, analyse and model suitable control strategies (e.g. wake deflection, de-rating, etc.), and to utilise them within control algorithms. A special care will be given to the efficiency of control strategies and their effect on loads in different atmospheric stabilities. Furthermore, LES will be utilised to validate the developed models and control strategies based on them.

Among others, the job will comprise:

  • identification and modelling of suitable wind farm control strategies
  • development of wind farm control algorithms for different control objectives,
  • validation of developed models and control algorithms,
  • analysis of wind turbine structural loads induced by wakes and control actions,
  • dissemination of the research results in high quality journals,
  • supervision of Bachelor, Master and PhD students,
  • support of the project acquisition and other general activities of the research group.

Furthermore, the candidate will be given opportunities to actively improve personal, scientific and teaching skills.

The work is part of the »WIMS-Cluster« project of the Ministry of Economic Affairs and Energy.

Candidate Profile
Prerequisite are a qualifying university degree (diploma or master) and a PhD in engineering, physics, or an equivalent course of studies with a strong focus on control engineering. Further requirements are:

  • at least 3 years of research experience in a relevant field,
  • experience with classical control design techniques,
  • experience with model-based optimal control techniques,
  • good understanding of wind turbine and flow dynamics,
  • experience with wind farm and wind turbine control algorithms,
  • experience with large eddy simulations (experience with PALM is considered a plus),
  • experience with wind turbine aeroelastic codes (e.g. HAWC2, GH Bladed, FAST),
  • experience with Matlab/Simulink,
  • programming experience (preferably in FORTRAN),
  • experience in publishing in peer-reviewed journals and conferences,
  • experience with proposal acquisition is considered a plus,
  • fluently spoken and written English
  • German language skills are desirable,
  • high motivation to work on a complex research topic.

Given the duration of the »WIMS-Cluster« project, the employment is limited until 30th June 2020.

The University of Oldenburg is dedicated to increase the percentage of female employees in the field of science. Therefore, female candidates are strongly encouraged to apply. In accordance to § 21 Section 3 NHG, female candidates with equal qualifications will be preferentially considered. Applicants with disabilities will be given preference in case of equal qualification. Full-time positions can be also turned into part-time ones.

Please send your preferably electronic application referenced #UN53 and appending all the usual documents (motivation letter, curriculum vitae, graduation results, job references) in one single pdf file as well as another pdf of the final thesis of your studies or relevant research papers (if available) to the Carl von Ossietzky University of Oldenburg, Faculty V, Institute of Physics, Research Group Wind Energy Systems, Prof. Dr. M. Kühn, Küpkersweg 70, 26129 Oldenburg, Phone +49 441 798 5061, email wesys.bewec6c6rbundhyvggen@forodtwind.dde4fve, until 23 September 2019.
Applications may be in German or English language.


Christirey+na Oswf/xxpald ( (Stand: 18.09.2019)