Slip frequency phase lock loop (PLL) for decoupled P-Q control of doubly-fed induction generator (DFIG)
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Bibliographic record
Abstract
The paper describes an innovative slip frequency phase lock loop (PLL) which measures the rotor frequency /spl omega//sub R/ and the rotor speed /spl omega//sub m/ of a doubly-fed induction generator (DFIG). Both information are required in implementing sensorless control of DFIGs by rotor-side voltage-source converters. For decoupled P-Q control, it is necessary to align the rotor /spl gamma/-/spl delta/ axes to the axes of the stator. A new /spl gamma/-/spl delta/ axes aligner is also proposed. The information extracted are: (i) the rotor position (/spl omega//sub m/t+/spl delta//sub m/), (ii) the rotor speed /spl omega//sub m/, (Hi) the rotor frequency /spl omega//sub R/. Proofs of concepts and proofs of decoupled P-Q control of a wind turbine driven DFIG are presented from simulation studies.
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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