Generated output increase control with consideration of the influence of wake for wind farm

Presently, many wind turbine generators (WTGs) are connected to the power grid. While the penetration of wind power to the power system is increasing, FIT price is decreasing. Therefore, wind generation companies want to increase the electric power output from wind farms (WFs). In this article, we p...

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Bibliographic Details
Published in:Electrical engineering in Japan 2019-09, Vol.208 (3-4), p.39-47
Main Authors: Kondo, Shinichi, Inage, Shinichi
Format: Article
Language:English
Subjects:
Electric power
Electricity distribution
generation power improvement
Optimization
Optimization techniques
Turbogenerators
wake effect
wind farm
Wind power
Wind power generation
wind turbine generation system
Wind turbines
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Summary:Presently, many wind turbine generators (WTGs) are connected to the power grid. While the penetration of wind power to the power system is increasing, FIT price is decreasing. Therefore, wind generation companies want to increase the electric power output from wind farms (WFs). In this article, we propose a control technique to reduce the influence of the wake by changing a power coefficient of each WTG in a WF for the purpose of improving electric power output of WFs. We showed the optimization technique of a power coefficient of each WTG and the effect of reducing the influence of the wake using measurement data from WFs. In addition, we formulated the wake effect as a function of distance between WTGs. We verified 1% improvement of generated energy in a year compared to the conventional control method by simulation. Furthermore, we quantified the improvement of generated energy output, using the distance between WTGs and the occurrence rate of the direction of the wind as a variable.
ISSN:0424-7760
1520-6416
DOI:10.1002/eej.23170