A SiC-based, Fully Soft-Switched Bridge-less AC/DC Converter with High Voltage Conversion Ratio Based on Current Fed Voltage Quadrupler Modules for MVDC Conversion in Wind Energy Application
Bibliographic record
Abstract
In this paper a novel soft-switched, bridgeless rectifier is presented to be integrated with an isolated step-up resonant converter for step-up voltage conversion in medium voltage (MV) DC grid in wind energy application. To reduce the number of conversion stages, the proposed bridgeless boost rectifier is integrated with a high-frequency step-up resonant converter with voltage quadrupler modules to form a single-stage AC/DC step-up converter. The proposed converter is able to reduce the number of semiconductors required for the front-end rectifier, thus simplifying the resulting controller. All the switches and diodes are able to achieve soft-switching to enhance the circuit efficiency. Simulation results are given on a 1MW, 690Vac/23kVDCsystem to highlight the merits of the proposed converter. Experimental results are also provided on a laboratory scale Silicon Carbide (SiC)-based 100VL-L/1.6kVDCproof of concept prototype.
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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 | 0.001 | 0.001 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.003 | 0.001 |
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".