|Wind-Science - 28/02/2014 à 23:14||
In Germany it will soon be possible to test entire nacelles for wind turbines with outputs of up to 10 megawatts. For this purpose, Fraunhofer IWES laid the foundation stone for the DyNaLab testing facility last Friday. This is scheduled to begin operation in 2014.
|Wind-Science - 28/02/2014 à 23:04||
The rotor and mast of a wind turbine can oscillate even in normal operation. The analysis of these oscillations plays an important role when the equipment is being developed and maintained. Up to now, this analysis has only been possible at discrete points located directly on equipment. The Fraunhofer Institute of Optronics, System Technologies and Image Exploitation IOSB uses modern information technology to remotely measure the oscillatory pattern over the entire structure of the facility from several hundred meters away.
|Wind-Science - 28/02/2014 à 23:00||
Research into the best ways to arrange wind turbines has produced staggering results -- quite literally.The University of Delaware's Cristina Archer and her Atmosphere and Energy Research Group found that staggering and spacing out turbines in an offshore wind farm can improve performance by as much as 33 percent. "Staggering every other row was amazingly efficient," said Archer, associate professor of physical ocean science and engineering and geography in UD's College of Earth, Ocean, and Environment.
|Wind-Science - 28/02/2014 à 22:54||
Renewable energy sources such as wind-powered generators can be more reliable and efficient by better controlling the process of getting electricity onto the power grid, according to a United States patent based on research by Dr. Shuhui Li, associate professor of electrical and computer engineering at The University of Alabama.
|Wind-Science - 28/02/2014 à 22:50||
The Energy Department's National Renewable Energy Laboratory (NREL), along with partners from the Electric Power Research Institute and the University of Colorado have completed a comprehensive study to understand how wind power technology can assist the power grid by controlling the active power output being placed onto the system. The rest of the power system's resources have traditionally been adjusted around wind to support a reliable and efficient system. The research that led to this report challenges that concept.
wind turbines can remain productive for up to 25 years, making wind farms an attractive long-term choice for energy investors, according to new research.
|Wind-Science - 28/02/2014 à 22:43||
The UK has a target of generating 15 per cent of the nation's energy from renewable resources such as wind farms by 2020. There are currently 4,246 individual wind turbines in the UK across 531 wind farms, generating 7.5 per cent of the nation's electricity. There has been some debate about whether...
|Wind-Science - 28/02/2014 à 22:34||
We’ve all heard the warnings about how intermittent renewables could “crash” the grid if for instance all of a sudden the wind stops blowing and grid operators are left in the lurch for power when they need it. But what if wind turbines actually improve grid reliability?
May sound far-fetched to some people, but that’s exactly what the U.S. Department of Energy’s National Renewable Energy Laboratory (NREL) reports in the new study Active Power Controls from Wind Power: Bridging the Gaps.
Previous studies have focused on wind energy forecasting as the key to balancing wind’s availability and the power grid’s demand, but this new hypothesis could vastly expand the relationship between wind turbines and the grid.