Major research outcome
- AIM Laboratory Led by Professor Sang Lee, Unveil Frequency-Aware Control Mechanics for Next-Generation 15MW TLP Floating Wind Turbines
- 관리자 |
- 2026-05-10 11:47:08|
- 53
- 2026-05-10 11:47:08|
The AIM Laboratory, led by Professor Sang Lee at KAIST, has pioneered a mechanistic approach to managing the complex aero–hydro–servo–elastic interactions in next-generation 15MW tension-leg platform (TLP) floating wind turbines. The study, co-authored by then-graduate student Seunghwan Yun and Ph.D. candidate Moosarreza Shokati, provides a technical roadmap for optimizing control systems in large-scale deep-water installations.
As turbines scale to the 15MW class, traditional collective pitch control often faces "negative damping" challenges, typically solved by globally "detuning" the controller at the expense of power quality. This research introduces a frequency-shaping framework that selectively manages the excitation–response transfer characteristics within the platform’s rigid-body interaction bands. By targeting specific frequency pathways rather than redistributing aerodynamic forcing energy, the researchers demonstrated that structural loads can be managed without degrading rotor speed regulation or rated power tracking.
A key technical contribution of the work is the demonstration that these structural improvements arise not from a redistribution of wind energy, but from a fundamental reshaping of the dynamic pathway between wind forcing and platform response. This research offers a practical, low-complexity framework for the development of "frequency-aware" controllers, advancing the reliability of large-scale floating wind farms in deep-water environments. The study was published in the April 2026 issue of Ocean Engineering, a premier international journal and top-tier (Q1) JCR category publication in the field of marine and offshore engineering.
https://doi.org/10.1016/j.oceaneng.2026.125592
As turbines scale to the 15MW class, traditional collective pitch control often faces "negative damping" challenges, typically solved by globally "detuning" the controller at the expense of power quality. This research introduces a frequency-shaping framework that selectively manages the excitation–response transfer characteristics within the platform’s rigid-body interaction bands. By targeting specific frequency pathways rather than redistributing aerodynamic forcing energy, the researchers demonstrated that structural loads can be managed without degrading rotor speed regulation or rated power tracking.
A key technical contribution of the work is the demonstration that these structural improvements arise not from a redistribution of wind energy, but from a fundamental reshaping of the dynamic pathway between wind forcing and platform response. This research offers a practical, low-complexity framework for the development of "frequency-aware" controllers, advancing the reliability of large-scale floating wind farms in deep-water environments. The study was published in the April 2026 issue of Ocean Engineering, a premier international journal and top-tier (Q1) JCR category publication in the field of marine and offshore engineering.
https://doi.org/10.1016/j.oceaneng.2026.125592
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