the wind as one of the manifestations of renewable energies is very important for tabernacle instead of fossil fuels. the sistan and baluchestan province, according to its topography and position is one of the best places to build wind power plant. in this research, for potential evaluating of the wind power plants construction were considered different criteria and sub-criteria in the province...

The wind turbine technology is now a developed technology. Modern wind technology incorporates each aspect of grid integration, stability and power quality issues in the arena of reliable power production to user end or utility. The paper provides cumulative modernization of wind turbine technology through literature survey of wind turbine configurations followed by discussion of different cont...

The Implementing Agreement This report on long-term R&D needs for wind energy was produced by the Implementing Agreement for Cooperation in the Research and Development of Wind Turbine Systems (IEA R&D Wind), which forms part of a programme of international energy technology collaboration which is undertaken under the auspices of the International Energy Agency (IEA). The IEA is the energy foru...

This paper proposes the development of an appropriate control system for the real-time management of large offshore Doubly-Fed Induction Generator (DFIG) based wind farms, connected to the transmission network by Voltage Source Converter High Voltage Direct Current (VSC-HVDC) link. In this plant layout, variable frequency operation lets wind turbines to work on a wider range of wind speed value...

The worldwide demand for green energy systems is evident. In this context, wind energy converters will play a paramount role. Extending the service life of a wind energy converter translates into significant economic savings as well as ecological earnings. New opportunities for the management and operation of the wind energy converters make it beneficial to know the structural condition and the...

Every year the number of installed wind power plants in the world increases. The horizontal axis wind turbine is the most common type of turbine but there exist other types. Here, three different wind turbines are considered; the horizontal axis wind turbine and two different concepts of vertical axis wind turbines; the Darrieus turbine and the H-rotor. This paper aims at making a comparative s...

Modern wind farms comprised of horizontal-axis wind turbines (HAWTs) require significant land resources to separate each wind turbine from the adjacent turbine wakes. This aerodynamic constraint limits the amount of power that can be extracted from a given wind farm footprint. The resulting inefficiency of HAWT farms is currently compensated by using taller wind turbines to access greater wind ...

BACKGROUND Wind farms have shown a spectacular growth during the last 15 years. Avian mortality through collision with moving rotor blades is well-known as one of the main adverse impacts of wind farms. In Spain, the griffon vulture incurs the highest mortality rates in wind farms. METHODOLOGY/PRINCIPAL FINDINGS As far as we know, this study is the first attempt to predict flight trajectories...

the purpose of this study was to estimate relative potential hazards to birds and bats from wind developments in texas. we compiled lists of rare, threatened, or endangered species, along with their respective ranges in texas. using a geographic information system (gis), we calculated a potential hazard index (phi) for 31 bird and ten bat species based upon the percentage of known or observed s...