A Series-Connected Hybrid Modular Multilevel Converter for HVDC Tapping Application
Why this work is in the frame
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Bibliographic record
Abstract
This paper introduces a three-phase series-connected asymmetric hybrid modular multilevel converter (SCAH-MMC) tap which not only retains the technical advantages of the three-phase series-connected MMC, but also has the capability to cope with dc faults. Basic operation principle of SCAH-MMC is presented. It shows that SCAH-MMC is troubled by the inherent third harmonic of single-phase ac power. By adding feed-forward to the modulation signal, third-harmonic currents of SCAH-MMC can be significantly reduced. The mathematical formulas and claims are validated by simulations using PSCAD/EMTDC.
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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