Grounding Design and Fault Analysis of MMC Based Flexible Interconnection Device in Future Distribution Networks
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Bibliographic record
Abstract
This paper presents the grounding design and fault analysis of a modular multilevel converter (MMC) based multi-port flexible interconnection device (FID) for future distribution networks. Based on the requirements of the FID, zig-zag transformer, large reactance grounding, and mid-point grounding schemes are investigated. Characteristics of these grounding schemes are analyzed and compared under both single line-to-ground (SLG) fault on the AC side and single pole-to-ground (SPG) fault on the DC side. Based on the performances of the grounding schemes, zig-zag transformer grounding is proved to be more attractive on both medium and low voltage sides of the proposed FID system.
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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 | 0.001 |
| 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