A Multi-Mode Hybrid CCM/DCM Three-Phase Step-Up AC/DC Soft-Switched Converter with an Adaptive Active-Controlled Auxiliary Circuit and Constant Output Voltage
Bibliographic record
Abstract
This paper proposes a new multi-mode three-phase bridgeless AC/DC high power factor step-up resonant converter with a new adaptive active-controlled auxiliary circuit and regulated output voltage for MVDC grid application. In the proposed design, the integrated boost rectifier operates in a hybrid Discontinuous Conduction Mode (DCM)/Continuous Conduction Mode (CCM) operation to lower the inductor and EMI filter losses. To ensure soft-switching operation during the CCM operation of the converter, a closed-loop adaptive active auxiliary circuit is proposed to provide the required lagging current for the switches whenever needed. The duty ratio of the switches changes based on the input current equation in a closed-loop manner to ensure an almost sinusoidal input current with a high power factor. A variable frequency control algorithm is also implemented on the proposed converter to regulate the converter's output voltage. The converter's performance is verified through a 1.2MW, 690Vac/27kVdc design.
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How this classification was reachedexpand
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) | 0.001 | 0.001 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.001 | 0.000 |
| Scholarly communication | 0.000 | 0.001 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.001 |
| Insufficient payload (model declined to judge) | 0.001 | 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 teacher head, 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".