A significant number of wind turbines will reach the end of their planned service life in the
near future. A decision on lifetime extension is complex and experiences to date are limited …

The existence of environmental concerns and constraints has led to a much greater
necessity for the development of renewable energy resources. Wind energy resources are …

Continuous assessment of wind turbine performance is a key to maximising power
generation at a very low cost. A wind turbine power curve is a non-linear function between …

The power generation of wind turbines varies depending on external environmental
conditions. To present universal correlations between conditions that affect wind speed and …

Numerous studies have shown that atmospheric conditions affect wind turbine performance;
however, some findings have exposed conflicting results for different locations and diverse …

Wind direction variation with height (wind veer) plays an essential role in the inflow wind
field as the wind turbine enlarges. We explore the wind veer characteristics and their impact …

Presently small wind turbines are receiving greater attention, due to the extensive promotion
of decentralized power generation in a sustainable way by national and international …

This work deals with the development of a real-time wind turbine emulator (WTE) for
laboratory purpose using a robust sliding mode controller (SMC). The application of power …

If the wind speed that passed through a wind turbine rotor disk area is constant, the hub
height wind speed (HHWS) could be representative of the wind speed over the rotor disk …

To clarify the wind veer characteristics with height and their effect on the wind turbine power
outputs, an investigation was carried out at the wind farms with complex and simple terrains …