According to a report released by the U.S. Department of Energy (DOE), Wind power is now the largest source of renewable energy in the U.S. Social media posts that have been widely shared have alleged that wind power is inefficient and unnecessarily expensive.
Wind power has experienced fast growth within China during the past decade, but many wind farms are being built within regions of high seismic activity. In Journal of Renewable and Sustainable Energy, researchers present their work exploring the dynamic behaviors of wind turbines subjected to combined wind-earthquake loading. The group discovered that changes in the wind increase and decrease the response amplitude of the wind turbine under weak and strong earthquakes, respectively.
For wind farms, it is important to control upstream turbines in an efficient manner so downstream turbines are not adversely affected by upstream wake effects. In the Journal of Renewable and Sustainable Energy, researchers show that by designing controllers based on viewing the wind farm system as a coupled network, it is possible to extract power more efficiently.
Researchers at Sandia National Laboratories have a new tool that allows them to study wind power and see whether it can be efficiently used to provide power to people living in remote and rural places or even off the grid, through distributed energy.