Development of a wind farm power forecast model

The assessment of dynamic wake effects on loading: Dynamic wake modeling and comparison of methods for wake loading assessment

The wake effect from upstream wind turbines is a hot topic recently and many researches on wake modeling have been carried out in the past few years. The wake models have evolved from the simple semi-empirical approach to the dynamic meandering model using the Computational Fluid Dynamics (CFD) codes. However, some of current wake models cannot...

Predicting the rooftop wind climate for urban wind energy in the Rotterdam - Delft - Zoetermeer region: New approaches for implementing urban height data in the wind atlas method

Investigation into reduction of the Cost-Of-Energy of the Upwind 5.0 MW Wind Turbine using Higher- Harmonic Individual Pitch Control

Individual Pitch Control has been a topic of study in the field of wind turbine engineering for more than a decade. It has been shown that a load reducing controller can be designed that makes use blade root moment measurements. Various authors have performed simulations to estimate the extent to which Individual Pitch Control can reduce fatigue...

Urban Wind Map for Delft, Rotterdam and Zoetermeer

Urban wind turbines fall within the scope of the green energy goal of municipalities in the Netherlands. For feasibility and potential green energy contribution assessment of these turbines, realistic wind speed prediction method is essential. The objective of this thesis is to develop urban wind resource mapping methodology and apply it to...

Conceptual Design and Evaluation of Economic Feasibility of Floating Vertical Axis Wind Turbines

An increasing interest arises to harvesting the strong winds in deeper water offshore locations. In deep waters, a floating foundation is required. A problem is that these floating foundations must be large and are expensive to build. Another problem is the cost of wind turbine maintenance. Vertical Axis Wind Turbines are of interest as a...

Validation of NewGust and a comparison with other wind gust simulation methods with respect to the load response of a wind turbine

As wind turbines become larger and larger, optimization of material usage becomes relatively more important. The reason lies in the direct connection of material use with investment costs, which are becoming more important with larger turbines. For this optimization, proper fatigue analysis and assessment of the extreme loads is highly important...

Systems and Knowledge Engineering Design of an Urban Vertical Axis Wind Turbine

The development of wind energy in the built environment is nowadays a growing industry, with several small companies developing different wind turbine designs. However, most of the designs introduced so far were proven to be unsuitable because of the complex urban wind conditions and because of the fact that the design of urban wind turbines is...

Feasibility study of a new type of wind turbine with a single blade, wagging in a vertical plane

The Windstem is a horizontal axis wind turbine for the urban environment that flaps back and forth like a bird’s wing instead of turning full circles. A successful wind turbine of this type has not yet been made. It was investigated whether a wind turbine with a wagging blade, the Windstem, can be competitive at any location with other wind...