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ENCIT 2020
18th Brazilian Congress of Thermal Sciences and Engineering
Study of Wake Effect in Wind Farms Applied to the State of Rio Grande do Norte
Submission Author:
Matheus de Oliveira Camelo , RN
Co-Authors:
Matheus de Oliveira Camelo, Gabriel Ivan Medina Tapia
Presenter: Matheus de Oliveira Camelo
doi://10.26678/ABCM.ENCIT2020.CIT20-0110
Abstract
This paper studies the influence the wake effect of wind turbines has on the energy production and the efficiency of wind farms with wind and terrain characteristics specific to state of Rio Grande do Norte. To represent the wake effect in wind farms, it was used a multiple wake model applied to Jensen wake model. The model was implemented as a MATLAB computational algorithm which receives as input data a wind farm layout and characteristics of the chosen wind turbine and the terrain and it calculates the total output power of the park. The algorithm also returns layout efficiency, given by the ratio of total output power with to without wake effect, and capacity factor, given by the ratio of the real total output power to the rated power of the farm. The first results confirmed the algorithm's ability to perform the requested analysis. Moreover, the adopted mathematical model provided a satisfactory description for multiple wakes phenomenon. Other results were obtained with local characteristics of Rio Grande do Norte being applied to several wind farm layouts to assess the consequences of wake effect. It was proved that the impact of wake effect is very significant on the power generation of a wind farm. Therefore, the layout of wind turbines must be designed in order to minimize this impact.
Keywords
wake effect, Jensen model, wind energy, wind farm
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