Structural Response of a Commercial Wind Turbine to Various Stopping Events
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Bibliographic record
Abstract
Increases in forced curtailments at commercial wind farms have triggered a need to investigate turbine behaviour during stopping events. A 2.3 MW commercial horizontal axis wind turbine instrumented with a fiber Bragg grating strain array was subjected to the three most common types of stopping sequences performed by the turbine to measure the supporting tower's structural response. An overview of each considered stop type is included identifying their individual mechanical processes as well as their specific triggers. The along-wind and transverse strain measurements at varying elevations of the tower are presented and discussed. Distinguishable response characteristics for each stop type are identified at stop initiation, during rotor deceleration, and following event completion. Results obtained are subsequently compared to the tower strain reactions as a result of typical power production as well as pure yawing of the nacelle. Furthermore, the strain signal has been subjected to a discrete wavelet transform identifying variations in the signal frequency content, triggered by the stopping events.
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Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it