Searched for: contributor:"van Wingerden, J.W. (mentor)"
(1 - 20 of 29)

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Kok, J. (author)
This thesis studies ways of broadening the range of a piezoelectric flow induced vibration harvester. The proposed device consists of a flap connected with a hinge to a spring. Existing harvesters are designed to replace or charge batteries for low power systems in the range of milliwatts. These systems produce low amounts of power, but for low...
master thesis 2017
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van der Hoek, D.C. (author)
Increasing the capacity of offshore wind energy is a necessary step in the transition from fossil fuels to renewable energy sources. In order to accelerate this process, the costs of wind energy should be reduced to make it more competitive with traditional energy sources. Cost reduction could be achieved by increasing the lifetime of an...
master thesis 2017
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Wilson, B.A.H. (author)
Wind turbines are often sited together in wind farms as it is economically advantageous. However, the wake inevitably created by every turbine will lead to an aerodynamic interaction between the individual turbines. Common practice in industry has been to control turbines individually and ignore this interaction while optimizing the power and...
master thesis 2017
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van de Leijgraaf, M. (author)
Clients and vessel manufacturers are always looking for ways to increase the performance of their fleet. Therefore, a novel modelling strategy for the propulsion plant of naval vessels is explored here. This has been done by using the Linear Parameter Varying (LPV) framework. On one hand, a non-linear description is needed to fully understand...
master thesis 2017
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De Ruyter, R.B. (author)
master thesis 2017
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Frederik, J.A. (author)
Renewable energy is becoming more and more important in today's society. Wind energy plays an important role in the production of renewable energy. Due to economic advantages, wind turbines are often sited close together, creating wind farms. As a result, the wind turbines in the farm become interconnected due to the wakes of the turbines. In...
master thesis 2017
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Jager, S.M. (author)
In an effort to reduce the Levelized Cost Of Energy (LCOE) of offshore wind energy to a market competitive level, a new wind turbine prototype with hydraulic drive train has been introduced by the start-up company Delft Offshore Turbine (DOT). In the DOT concept, a seawater pump is directly connected to the rotor shaft. The pump pressurizes sea...
master thesis 2017
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Keemink, H. (author)
With the advent of smart thermostats like Toon®, detailed information about operation and usage of central heating boilers has become easily available. However, this information is not used in a systematic way by most companies including Eneco, and the wealth of information within is not available to the users. This has a few drawbacks. For...
master thesis 2016
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de Carvalho Cruz, D. (author)
With the current view on sustainability and global warming, renewable energy sources are becoming more and more important. One of these environmental friendly energy sources is wind energy. To make the price of wind energy more competitive compared to other energy sources, the current trend in the industry is to increase the rotor diameter of...
master thesis 2016
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Bautista Gauna, J.E. (author)
New system identification methods are developing constantly to come up with solutions that can take into account all of the factors that real-time systems have. These factors affect the analysis of the system’s behavior, particularly noise, non-linearities, system’s complexity, time varying changes, among others. This thesis is concerned with...
master thesis 2016
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Parthasarathy, H. (author)
Photo-lithographic stepper systems are used for manufacturing of integrated chips(IC). For incorporating more functionality and having more space chip manufacturing industries invest heavily to reduce the size of the structures on the chips. This directly requires the stepper system to operate in nanometer scale resolution. To achieve such high...
master thesis 2016
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van Dijk, M.T. (author)
Climate change gives incentive for the transition to sustainable energy sources such as wind energy. To make wind energy cost competitive with fossil fuel sources, wind turbines are commonly placed in groups. As wind turbines extract energy from the wind, a wake occurs behind the turbine characterized by reduced a wind speed and increased...
master thesis 2016
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Telsang, B. (author)
The main contribution of this thesis is the development of an inherently adaptive controller which recursively implements a system identification and control routine. The main idea here, is that if system identification techniques can be made computationally light, and if they can be combined efficiently with a controller formulation, such a...
master thesis 2016
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Doekemeijer, B.M. (author)
Wind turbines are often grouped together for financial reasons, but due to wake development this usually results in decreased turbine lifetimes and power capture, and thereby an increased levelized cost of energy (LCOE). Wind farm control aims to minimize this cost by operating turbines at their optimal control settings. Most state-of-the-art...
master thesis 2016
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Kramers, H.C. (author)
In order for wind energy to become a well established source of alternative energy that is able to compete with the traditional forms of energy production, the costs of (offshore) wind energy should be lowered. This can be achieved by either increasing the energy output of a turbine or by reducing its production and maintenance costs. Current...
master thesis 2016
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Dimitrova, I.D. (author)
The natural frequency of wind turbine towers can be more than 10% off from the designed frequency. This frequency is important for control because it sets bandwidth limits to some of the control loops. Improving the model will result in better control and load reduction that will in turn contribute to the decrease of the cost of wind energy. The...
master thesis 2016
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Willemstein, N. (author)
In this thesis the usage of the LPV-ARX representation of a LPV system for extending the applicability of the Iterative Feedback Tuning (IFT) framework from LTI control to LPV control was investigated. Two methods for extending the IFT framework were researched, both based on the LPV-ARX representation, namely; the extended regressor and the...
master thesis 2016
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Mathios, V.A. (author)
The decommissioning market expenditure is expected to grow further in the years to come due to increasing number of platforms that near the end of their production cycle, mainly being xed steel structures (<4,000 [Te]) positioned in shallow waters (30 to 75 [m]). The risks of such operation emerged the need for semi-submersible, heavy-lift...
master thesis 2015
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Gunnink, T. (author)
Tidal energy converters are an emerging technology with the potential to expand the portfolio of renewable energy sources. Bluewater is developing the BlueTEC, a floating tidal energy converter with two variable pitch turbines. From research on floating wind turbines, it is known that control is fundamentally limited due to right hand plane...
master thesis 2015
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Visser, M. (author)
Flutter-induced vibrations can easily cause large structures like airplanes and bridges to fail, which even today makes flutter prediction an important topic of research. To predict flutter, recursive system identification can be used to capture the time-varying behavior using time-invariant techniques combined with the forgetting of old data....
master thesis 2015
Searched for: contributor:"van Wingerden, J.W. (mentor)"
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