Methods for regulating wind power's variability under development by electrical engineer

Oct 16, 2007

As Texas’ electric grid operator prepares to add power lines for carrying future wind-generated energy, an electrical engineer at The University of Texas at Austin is developing improved methods for determining the extent to which power from a wind farm can displace a conventional power plant, and how best to regulate varying wind power.

“The cost of wind energy has become competitive with that of energy from fossil fuels because of technology improvements,” said Assistant Professor Surya Santoso. “Unfortunately, electric power generated from wind energy is intermittent and variable. That means we need to have better measurements of wind power plants’ output as we integrate wind energy into existing power systems. We also need to develop a way of managing wind power so it can be more readily called upon when needed.”

Texas has outstripped California since 2006 as the leading national producer of wind power, with most of the state’s renewable energy goal by 2025 focused on wind power. To help meet this goal, the state’s Electric Reliability Council of Texas is expected to add about 1,500 megawatts of new wind generation this year alone. In late September, Texas also awarded four offshore tracts along the Gulf Coast for wind power projects with a generating capacity of 1,150 megawatts.

Santoso is developing two strategies to manage and overcome the intermittent and variable behavior of wind power. With a two-year, $200,000 grant from the National Science Foundation, he and his students are developing computational methods to measure the actual capacity contribution of wind farms. This will allow system planners to calculate how much a wind farm can contribute to meeting expected power needs.

Santoso’s lab is also using the funding to establish the technical requirements of energy storage systems that would serve as temporary ”batteries” for releasing stored wind energy at optimal times.

“Having a proper energy storage system would allow you to harness free wind when it’s available, but release that energy at the time of your choosing with a desired power profile,” Santoso said. He noted that a wind energy storage system would also increase wind farms’ overall capacity contribution and reduce the likelihood of overloading transmission power lines that must carry energy from different power sources.

Source: University of Texas at Austin

Explore further: FAA's Airworthiness Directive issued to avoid power loss

Related Stories

Ears, grips and fists take on mobile phone user ID

12 hours ago

A research project has been under way to explore a biometric authentication system dubbed Bodyprint, with interesting test results. Bodyprint has been designed to detect users' biometric features using the ...

More than 2,200 confirmed dead in Nepal earthquake

12 hours ago

A powerful aftershock shook Nepal on Sunday, making buildings sway and sending panicked Kathmandu residents running into the streets a day after a massive earthquake left more than 2,200 people dead.

Nepal quake: Nearly 1,400 dead, Everest shaken (Update)

23 hours ago

Tens of thousands of people were spending the night in the open under a chilly and thunderous sky after a powerful earthquake devastated Nepal on Saturday, killing nearly 1,400, collapsing modern houses and ...

Recommended for you

FAA's Airworthiness Directive issued to avoid power loss

May 02, 2015

A fix for a software problem that could possibly result in power loss in Boeing 787s has been ordered. Federal Aviation Administration officials adopted a new airworthiness directive (AD), effective as of ...

Recycling aluminium, one can at a time

May 01, 2015

Producing pure aluminium from ore accounts for as much as 1 per cent of all greenhouse gas emissions worldwide. Recycling is the best way to reduce that carbon footprint – but manufacturers and recycling ...

Bringing hypersonic flight closer to reality

May 01, 2015

Two University of Sydney aeronauticalengineering PhD researchers have been invited by the European Space Agency (ESA) to help realise the dream of travelling across the globe at 7 times the speed of sound.

User comments : 0

Please sign in to add a comment. Registration is free, and takes less than a minute. Read more

Click here to reset your password.
Sign in to get notified via email when new comments are made.