Fast Power Coefficient vs. Tip-Speed Ratio Curves for Small Wind Turbines with Single-Variable Measurements following a Single Test Run

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dc.contributor.authorCorbalan, Patricio A.
dc.contributor.authorChiang, Luciano E.
dc.date.accessioned2025-01-20T17:08:08Z
dc.date.available2025-01-20T17:08:08Z
dc.date.issued2024
dc.description.abstractSmall wind turbines (SWTs) face tremendous challenges in being developed into a more reliable and widespread energy solution, with a number of efficiency, reliability, and cost issues that are yet to be resolved. As part of the development stages of an SWT, testing the resulting efficiency and determining appropriate working ranges are of high importance. In this paper, a methodology is presented for testing SWTs to obtain characteristic performance curves such as Cp (power coefficient) vs. TSR (tip-speed ratio), and torque vs. omega, in a simpler and faster yet accurate manner as an alternative energy solution when a wind tunnel is not available. The performance curves are obtained with the SWT mounted on a platform moving along a runway, requiring only a few minutes of data acquisition. Furthermore, it is only required to measure a single variable, i.e., the generator output voltage. A suitable physics-based mathematical model for the system allows for deriving the desired performance curves from this set of minimal data. The methodology was demonstrated by testing a prototype SWT developed by the authors. The tested prototype had a permanent magnet synchronous generator, but the methodology can be applied to any type of generator with a suitable mathematical model. Given its level of simplicity, accuracy, low cost, and ease of implementation, the proposed testing method has advantages that are helpful in the development process of SWTs, especially if access to a proper wind tunnel is prevented for any reason. To validate the methodology, Cp vs. TSR curves were obtained for an SWT prototype tested under different test conditions, arriving always at the same curve as would be expected. In this case, the test prototype reached a maximum power coefficient (Cp) of 0.35 for wind velocities from 20 to 50 km/h for a TSR of 5.5.
dc.fuente.origenWOS
dc.identifier.doi10.3390/en17051199
dc.identifier.eissn1996-1073
dc.identifier.urihttps://doi.org/10.3390/en17051199
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/90920
dc.identifier.wosidWOS:001182781500001
dc.issue.numero5
dc.language.isoen
dc.revistaEnergies
dc.rightsacceso restringido
dc.subjectsmall wind turbine performance curves
dc.subjectsmall wind turbine efficiency
dc.subjectsmall wind turbine testing method
dc.subject.ods07 Affordable and Clean Energy
dc.subject.odspa07 Energía asequible y no contaminante
dc.titleFast Power Coefficient vs. Tip-Speed Ratio Curves for Small Wind Turbines with Single-Variable Measurements following a Single Test Run
dc.typeartículo
dc.volumen17
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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