Performance of a computer-based two-phase excitation system for a variable-speed dual-excited synchronous generator
Bibliographic record
Abstract
A computer-based two-phase excitation system for a variable-speed dual-excited synchronous generator (DESG) has been implemented. The excitation system has an automatic frequency regulation (AFR) scheme and an automatic voltage regulation (AVR) scheme. The two regulation schemes act on the excitation currents independently to enable the DESG to supply power at constant frequency and constant terminal voltage while its rotor is driven at a variable speed. The authors describe the implementation of the excitation system and its performance when the AFR scheme is set to the AUTO control mode and the AVR scheme is set to the MANUAL control mode. Real-time results are presented showing the performance of the AFR scheme when the DESG is operating under different system disturbances for an operational slip range of +or- 10%. The results show that the excitation system is flexible, fast acting, and accurate. The steady-state error in the regulated output frequency is much less than 0.1%.>
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.001 |
| 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 | 0.001 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.004 | 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 source (direct Gemma or distilled Codex), 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".