Rapid optimization of stall-regulated wind turbine blades using a frequency-domain method: Part 1, loads analysis
Article first published online: 18 JUL 2014
Copyright © 2014 John Wiley & Sons, Ltd.
How to Cite
Merz, K. O. (2014), Rapid optimization of stall-regulated wind turbine blades using a frequency-domain method: Part 1, loads analysis. Wind Energ.. doi: 10.1002/we.1786
- Article first published online: 18 JUL 2014
- Manuscript Accepted: 24 JUN 2014
- Manuscript Revised: 14 NOV 2013
- Manuscript Received: 13 DEC 2012
- stall regulated;
- blade design;
- frequency domain
A fast and effective loads analysis method was developed for the preliminary design of stall-regulated blades. Calculations are conducted in the frequency domain, including a three-dimensional representation of turbulence, for a rapid evaluation of lifetime loads. The structural model is simplified, consisting of a single flexible blade on a rigid drivetrain. Load cases are defined which consider ultimate, extreme operating (with and without tip brake deployment), and lifetime fatigue loads. It is shown, by comparison with time-domain simulations, that the load cases provide a reasonable estimate of design-driving loads. The method described in Part 1 of this article forms the basis for a novel optimization method in Part 2. Copyright © 2014 John Wiley & Sons, Ltd.