Preprints
https://doi.org/10.5194/wes-2023-165
https://doi.org/10.5194/wes-2023-165
08 Dec 2023
 | 08 Dec 2023
Status: this preprint is currently under review for the journal WES.

Validation of a traceable efficiency determination method for wind turbines with a focus on measurement uncertainty

Nijan Yogal, Christian Lehrmann, Paula Weidinger, Zihang Song, Hongkun Zhang, Maximilian Zweiffel, and Christian Mester

Abstract. All around the world, new plans and strategies are being implemented for installing energy-efficient wind turbines in order to increase renewable energy capacities and meet the demand for clean energy. Advances in wind turbine technologies and their extremely sophisticated systems have led to an increasing need for proper efficiency determination methods, both in the field and on test benches, to keep up with the accelerated deployment of wind turbines around the globe. This paper examines the feasibility and practicability of new wind turbine efficiency determination methods on test benches that are based on international standards for electrical machines. Test methods and the static calibration certificates of the employed specialised instruments and sensors were used to evaluate the efficiency and associated measurement uncertainties in ambient conditions. Furthermore, the results were compared with those obtained through the innovative iso-efficiency method, which comprehensively maps the wide operating range of wind turbines.

Nijan Yogal, Christian Lehrmann, Paula Weidinger, Zihang Song, Hongkun Zhang, Maximilian Zweiffel, and Christian Mester

Status: final response (author comments only)

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on wes-2023-165', Anonymous Referee #1, 22 Jan 2024
  • RC2: 'Comment on wes-2023-165', Jonathan Keller, 26 Jan 2024
Nijan Yogal, Christian Lehrmann, Paula Weidinger, Zihang Song, Hongkun Zhang, Maximilian Zweiffel, and Christian Mester
Nijan Yogal, Christian Lehrmann, Paula Weidinger, Zihang Song, Hongkun Zhang, Maximilian Zweiffel, and Christian Mester

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Short summary
This paper examines global initiatives for energy-efficient wind turbines, exploring new approaches based on international standards. The conclusion underlines the urgency of transitioning to clean energy, highlighting the iso-efficiency map's potential for validating total efficiency. Encouraging standardized testing, research addresses challenges in testing energy-efficient machines, emphasizing precise measurements.
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