Simultaneous inter-area decoupling and local area damping by voltage source HVDC
Bibliographic record
Abstract
The voltage-source converter (VSC) has 2 independent control degrees of freedom over P and Q (or P and V). Thus a high voltage DC (HVDC) transmission link based on VSCs (VSC HVDC) has 4 steady-state control freedoms. Of these, 2 are devoted to specifying and to coordinating the real power P through the DC link. This leaves one control freedom at each converter station to control the reactive power Q. Dynamically, the VSC-HVDC link has again 4 control freedoms based on the perturbation variables /spl Delta/P and /spl Delta/Q (or /spl Delta/P and /spl Delta/V). Through digital simulations, this paper shows that the two /spl Delta/Ps can de-couple the inter-area modes and each /spl Delta/V (or /spl Delta/Q) can simultaneously damp local modes within the area in which the converter station is situated. A mathematical proof for these capabilities is given in an appendix.
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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 | 0.000 |
| 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 | 0.001 |
| Open science | 0.000 | 0.001 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.003 | 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".