There is an increasing amount of wind farms that need to be connected to the AC transmission network. Offshore wind farms will be connected to the ac system via long submarine cables. Integration of offshore wind farms with HVDC transmission based on Voltage Source Converters (VSC), such as HVDC Light, is an advantage due to regulating properties of HVDC Light. The purpose with the Tjæreborg pr...

The demand for renewable energy has led to construction of offshore wind farms with high-power turbines, and many more wind farms are being planned for the shallow waters of the world’s marine habitats. The growth of offshore wind farms has raised concerns about their impact on the marine environment. Marine mammals use sound for foraging, orientation and communication and are therefore possibl...

Large wind farms require modeling and simulation in their planning and construction process to provide a basis for grid planning. As a large wind farm is comprised of hundreds or even thousands of wind generators, the detailed-model building of wind farms is difficult, which are associated with slow simulation speeds and heavy workloads. In this paper, an improved K-means algorithm-based aggreg...

Currently, many wind farms exist throughout the world and, in some cases, supply a significant portion of energy to networks. However, numerous uncertainties remain with respect to the amount of energy generated by wind turbines and other sophisticated operational aspects, such as voltage and reactive power management, which requires further development and consideration. To fix the problem of ...

Based on measured and forecasted wind power output it is possible to perform an analysis to assess the fluctuations of wind power generation in power systems. This report consists of two approaches for the analysis and assessment of wind power fluctuations. The first approach consists of a statistical analysis in which the power fluctuations of wind power output were determined by the calculati...

With the increasing penetration of wind power, not only the uncertainties but also the correlation among the wind farms should be considered in the power system analysis. In this paper, Clayton-Copula method is developed to model the multiple correlated wind distribution and a new point estimation method (PEM) is proposed to discretize the multi-correlated wind distribution. Furthermore, combin...

This paper focuses on the analysis of prediction of wind speed in the wind farms. The performance of modeling can be analyzed by using the real time data with different heights of the wind mill. Artificial Neural Network is used here to develop models for predicting wind speed in wind farms. The models are mainly based on back propagation neural network and radial basis function neural network....

5.1 INTRODUCTION Nowadays wind farms contributing to the energy production is continuously growing because of their economical and environmental protection attraction. However, large wind farms have higher reactive power demand that may not be easily satisfied. Therefore, connecting the wind farms to the power network becomes a more challenging task and their impacts are likely to be more wides...

Nowadays, propagation of wind turbines make challenges to supply safe power to the grid. Because of wind speed changes, supervisors are concerned to wind turbines, be able to produce appropriate electric power during the wind speed changes. As a matter of fact, investors are mostly like to invest on offshore wind farms, because of their more stable and continuous wind speed rather than onshore ...

This paper uses the empirical orthogonal function (EOF) analysis to decompose satellite-derived nighttime land surface temperature (LST) for the period of 2003–11 into spatial patterns of different scales and thus to identify whether (i) there is a pattern of LST change associated with the development of wind farms and (ii) the warming effect over wind farms reported previously is an artifact o...