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This Post-doctoral research position will be part of the R&D project AIMWind – Analytics for asset Integrity Management of Wind Farms (WFs). AIMWIND is a collaboration between TU Delft in The Netherlands, and the University of Agder and NORCE in Norway. Large, offshore wind farms are gaining prominence due to the increasing interest and dependence on renewable energy. The harsh operating conditions of offshore Wind Turbines (WTs) favour the occurrence of faults to key electric and mechanical components such as pitch actuator, gearbox and converter, as well as fatigue and failures in structural components including blades and tower. As these phenomena may lead to costly failures of WTs, there is a need for control systems algorithms that can consider the current health status of the WT and keep structural loads and stress or wear on components below an acceptable level. In this way, a WT residual useful life can be optimized, thus leading to lower operating costs and lower cost of energy.
The PostDoc position will be offered at the Delft University of Technology (TUD), at the Delft Center for Systems and Control, which is part of the Maritime, Mechanical and Materials Engineering Faculty. The position is initially for one year but can be extended to a total of three years upon a successful evaluation.
The position will focus on developing and combining both so-called fault-tolerant control laws, as well as structural load-limiting ones for individual WTs. At WF level, the information on each WT health status would allow to develop novel power dispatch algorithms. Such algorithms would allow to maximize the WF power production while preventing to over-stress damaged WTs, thus increasing their Residual Useful Life (RUL) with respect to a non-health-aware control strategy. While the proposed WT and WF control strategy would be developed using reduced-order mathematical models, it will later be tested and validated in medium or high-fidelity simulators, such as FAST Farm or SOWFA. Due to the intrinsic uncertainty introduced by the use of reduced order models, and the stochastic nature of the operating conditions faced by WTs, the work will also focus on quantifying and propagating the effects of such uncertainties over medium to long time horizons.
In particular, the following main tasks will be part of the intended work program:
Study the effect of stochastic uncertainties on the developed algorithms, by employing suitable uncertainty-propagation techniques, and make them robust in a stochastic sense.
The department Delft Center for Systems and Control (DCSC) of the faculty Mechanical, Maritime and Materials Engineering, coordinates the education and research activities in systems and control at Delft University of Technology. The Centers' research mission is to conduct fundamental research in systems dynamics and control, involving dynamic modelling, advanced control theory, optimisation and signal analysis. The research is motivated by advanced technology development in physical imaging systems, renewable energy, robotics and transportation systems.
Applicants should have the following qualifications:
The candidate will be working closely with other PhD and post-doctoral fellows under the project AIMWind.
Fixed-term contract: 1 year, but can be extended to a total of three upon a successful evaluation.
TU Delft offers a customisable compensation package, a discount for health insurance and sport memberships, and a monthly work costs contribution. Flexible work schedules can be arranged. An International Children’s Centre offers childcare and an international primary school. Dual Career Services offers support to accompanying partners. Salary and benefits are in accordance with the Collective Labour Agreement for Dutch Universities (salary indication: €3491-€4402 per month).
Delft University of Technology is built on strong foundations. As creators of the world-famous Dutch waterworks and pioneers in biotech, TU Delft is a top international university combining science, engineering and design. It delivers world class results in education, research and innovation to address challenges in the areas of energy, climate, mobility, health and digital society. For generations, our engineers have proven to be entrepreneurial problem-solvers, both in business and in a social context. At TU Delft we embrace diversity and aim to be as inclusive as possible (see our Code of Conduct). Together, we imagine, invent and create solutions using technology to have a positive impact on a global scale.
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The Faculty of 3mE carries out pioneering research, leading to new fundamental insights and challenging applications in the field of mechanical engineering. From large-scale energy storage, medical instruments, control technology and robotics to smart materials, nanoscale structures and autonomous ships. The foundations and results of this research are reflected in outstanding, contemporary education, inspiring students and PhD candidates to become socially engaged and responsible engineers and scientists. The faculty of 3mE is a dynamic and innovative faculty with an international scope and high-tech lab facilities. Research and education focus on the design, manufacture, application and modification of products, materials, processes and mechanical devices, contributing to the development and growth of a sustainable society, as well as prosperity and welfare.
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