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Published on March 30th, 2012 | by Zachary Shahan

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Wind Turbines to Improve Efficiency by Acting More Like Humans?



 
clean energy

 

Wind turbines may get a bit of an efficiency boost (eventually) by mimicking human memory systems, thanks to the thinking and work of some Chinese researchers.

As you well know, the wind changes frequently, and wind turbines have to adjust as it changes in order to maximize their efficiency. They can only do that as well as their control systems allow them to. Some Chinese researchers think they have found a ‘simple’ way to improve those control systems by making them act more like humans and memorize previous changes.

Here’s more information from the American Institute of Physics, via Science Daily:

Most turbines are designed to produce maximum allowable power once winds reach a certain speed, called the rated speed. In winds above or below the rated speed, control systems can make changes to the turbine system, such as modifying the angle of the blades or the electromagnetic torque of the generator.

These changes help keep the power efficiency high in low winds and protect the turbine from damage in high winds. Many control systems rely on complex and computationally expensive models of the turbine’s behavior, but the Chinese group decided to experiment with a different approach.

The researchers developed a biologically inspired control system, described in the American Institute of Physics’ Journal of Renewable and Sustainable Energy, that used memory of past control experiences and their outcomes to generate new actions. In simulations, the controller showed initially poor results, but quickly learned how to improve, matching the performance of a more traditional control system overall. The memory-based system is attractive because of its simplicity, the researchers write, concluding that “the human-memory-based method holds great promise for enhancing the efficiency of wind power conversion.”

So, apparently, this new method hasn’t resulted in better wind turbine efficiencies yet, but it’s expected to in the future. Yet another technological advancement likely to bring down wind power’s already low costs.

Source: Science Daily
Image: wind turbines courtesy shutterstock.

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About the Author

is the director of CleanTechnica, the most popular cleantech-focused website in the world, and Planetsave, a world-leading green and science news site. He has been covering green news of various sorts since 2008, and he has been especially focused on solar energy, electric vehicles, and wind energy for the past four years or so. Aside from his work on CleanTechnica and Planetsave, he's the Network Manager for their parent organization – Important Media – and he's the Owner/Founder of Solar Love, EV Obsession, and Bikocity. To connect with Zach on some of your favorite social networks, go to ZacharyShahan.com and click on the relevant buttons.



  • mano

    “thanks to the thinking and work of some Chinese researchers.”
    I am sorry I could not get this. since when the chinx did any research except copying and stealing from others.

    • http://cleantechnica.com/ Zachary Shahan

      that’s quite a stereotype for a country of over 2 billion, and one that is quickly coming to dominate the global economy.

  • WindOption

    There are certainly a lot of problems with today’s wind turbines but some of them will be solved in our near future. For example the control problem was almost solved by some Chinese scientists who have created a system that make turbines act like humans. I have posted more about it on my personal blog if you’re interested: http://windoption.com

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