Anemometer Positioning Optimization for Flow Field Calculation in Wind Farm
Publication: Journal of Energy Engineering
Volume 143, Issue 5
Abstract
In a wind farm, the wind data of the anemometers are used to evaluate the local wind resource. The position of the anemometer in a wind farm influences the wind resource evaluation significantly. In this paper, the position optimization of the anemometer related to flow field simulation of a wind farm is studied. The computational fluid dynamics method is introduced for airflow simulation. Based on the similarity of the flow field and the wind data of a single anemometer in the wind farm, a residual correction method is introduced to determine the boundary wind speeds and the flow field of the wind farm. Subsequently, a performance index is proposed through analyzing the characteristics of the residual correction method, acting as the optimization principle for anemometer positioning. The effectiveness of the performance index is tested by a case on a randomly generated terrain and a case with measured wind data in a real wind farm. The results indicate that the best anemometer position after optimization is not the one with highest elevation. Furthermore, the wind data of the optimized anemometer position can help to improve the numerical flow field results as well as saving much computational cost compared to the one with highest elevation. It is suggested that the proposed performance index can be used as the guidance for the anemometer positioning when designing a wind farm.
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Acknowledgments
The measured wind data of the anemometers in the real wind farm are provided by China HuaDian Corporation. This research is supported by the National Natural Science Foundation of China (Grant No. 51506056), the Program for Young Excellent Talent in Tongji University (No. 2014KJ025), and the International Scientific and Technological Cooperation Program of China (No. 2011DFG13020).
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Information & Authors
Information
Published In
Journal of Energy Engineering
Volume 143 • Issue 5 • October 2017
Copyright
©2017 American Society of Civil Engineers.
History
Received: Sep 30, 2016
Accepted: Mar 20, 2017
Published online: Jun 14, 2017
Published in print: Oct 1, 2017
Discussion open until: Nov 14, 2017
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