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Optical system design and experimental evaluation of a coherent Doppler wind Lidar system for the predictive control of wind turbine.

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Title: Optical system design and experimental evaluation of a coherent Doppler wind Lidar system for the predictive control of wind turbine.
Authors: Shinohara, Leilei1 shinohara@kit.edu, Tauscher, Julian1, Beuth, Thorsten1, Heussner, Nico2, Fox, Maik1, Babu, Harsha1, Stork, Wilhelm
Source: Optical Review. Sep2014, Vol. 21 Issue 5, p698-704. 7p.
Subjects: Wind turbines, Electric power production research, LIDAR, Laser Doppler velocimetry, Coherence (Optics)
Abstract: The control of wind turbine blade pitch systems by Lidar assisted wind speed prediction has been proposed to increase the electric power generation and reduce the mechanical fatigue load on wind turbines. However, the sticking point of such Lidar systems is the price. Hence, our objective is to develop a more cost efficient Lidar system to support the pitch control of horizontal axis wind turbines and therefore to reduce the material requirement, lower the operation and maintenance costs and decrease the cost of wind energy in the long term. Compared to the state of the art Lidar systems, a laser with a shorter coherence length and a corresponding fiber delay line is introduced for reducing the costs. In this paper we present the experimental evaluation of different sending and receiving optics designs for such a system from a free space laboratory setup. [ABSTRACT FROM AUTHOR]
Copyright of Optical Review is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: Optical system design and experimental evaluation of a coherent Doppler wind Lidar system for the predictive control of wind turbine.
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  Data: <searchLink fieldCode="DE" term="%22Wind+turbines%22">Wind turbines</searchLink><br /><searchLink fieldCode="DE" term="%22Electric+power+production+research%22">Electric power production research</searchLink><br /><searchLink fieldCode="DE" term="%22LIDAR%22">LIDAR</searchLink><br /><searchLink fieldCode="DE" term="%22Laser+Doppler+velocimetry%22">Laser Doppler velocimetry</searchLink><br /><searchLink fieldCode="DE" term="%22Coherence+%28Optics%29%22">Coherence (Optics)</searchLink>
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  Data: The control of wind turbine blade pitch systems by Lidar assisted wind speed prediction has been proposed to increase the electric power generation and reduce the mechanical fatigue load on wind turbines. However, the sticking point of such Lidar systems is the price. Hence, our objective is to develop a more cost efficient Lidar system to support the pitch control of horizontal axis wind turbines and therefore to reduce the material requirement, lower the operation and maintenance costs and decrease the cost of wind energy in the long term. Compared to the state of the art Lidar systems, a laser with a shorter coherence length and a corresponding fiber delay line is introduced for reducing the costs. In this paper we present the experimental evaluation of different sending and receiving optics designs for such a system from a free space laboratory setup. [ABSTRACT FROM AUTHOR]
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  Data: <i>Copyright of Optical Review is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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