The Augmented Unscented H-infinity Transform with H-infinity Filtering for Effective Wind Speed Estimation in Wind Turbines
Bibliographic record
Abstract
Wind energy is a fast-growing industry in Canada and worldwide. As wind turbine size and capacity increase, control systems become exceedingly important in order to maximize the efficiency of the power output and to reduce loads to extend their longevity. Effective wind speed (EWS) is not easy to measure because wind speed varies in time and space across the rotor area of the turbine, nor is it a real physical signal. This research aims to provide better knowledge of the input wind speed and to design a turbine controller based on this normally unknown input. First, nonlinear robust methods of state estimation were considered in order to deal with the nonlinearities present in the wind turbine model and the large exogenous disturbance of wind speed. Specifically the unscented H-infinity filter was used for robustness and accuracy. This unscented H-infinity scheme was then adopted in combination with a data fusion technique to estimate effective wind speed. This technique utilized high frequency data from the anemometer and treated the turbine as a sensor of low frequency data. These signals were fused to create an EWS estimate. The methods are thus shown to be effective in wind speed estimation for two sizes of turbines.
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How this classification was reachedexpand
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 itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".