Journal cover Journal topic
Wind Energy Science The interactive open-access journal of the European Academy of Wind Energy
https://doi.org/10.5194/wes-2018-8
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
Research articles
12 Feb 2018
Review status
This discussion paper is a preprint. It is a manuscript under review for the journal Wind Energy Science (WES).
Wind farm power production assessment: a comparative analysis of two actuator disc methods and two analytical wake models
Nikolaos Simisiroglou1,2, Heracles Polatidis2, and Stefan Ivanell2 1WindSim AS, Fjordgaten 15, 3125 T√łnsberg , Norway
2Uppsala University, Wind Energy Section, Campus Gotland, 621 67 Visby, Sweden
Abstract. The aim of the present study is to perform a comparative analysis of two actuator disc methods (ACD) and two analytical wake models for wind farm power production assessment. To do so wind turbine power production data from the Lillgrund offshore wind farm in Sweden is used. The measured power production for individual wind turbines is compared with results from simulations, done in the WindSim software, using two ACD methods (old and new) and two analytical wake models widely used within the wind industry (Jensen and Larsen wake models). It was found that the new ACD method and the Larsen model outperform the other method and model in most cases. Furthermore, results from the new ACD method show a clear improvement in the estimated power production in comparison to the old ACD method. The Jensen method seems to overestimate the power deficit for all cases. The new ACD method, despite it's simplicity, is capable of capturing the power production within the given error margin although it tends to underestimate the power deficit.
Citation: Simisiroglou, N., Polatidis, H., and Ivanell, S.: Wind farm power production assessment: a comparative analysis of two actuator disc methods and two analytical wake models, Wind Energ. Sci. Discuss., https://doi.org/10.5194/wes-2018-8, in review, 2018.
Nikolaos Simisiroglou et al.
Nikolaos Simisiroglou et al.
Nikolaos Simisiroglou et al.

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The aim of the present study is to perform a comparative analysis of two actuator disc methods (ACD) and two analytical wake models for wind farm power production assessment. To do so wind turbine power production data from the Lillgrund offshore wind farm in Sweden is used. The measured power production for individual wind turbines is compared with results from simulations, done in the WindSim software.
The aim of the present study is to perform a comparative analysis of two actuator disc methods...
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