Comparative Analysis of Reliability for Single-Phase and Three-Phase Dual Active Bridge Converters
Why this work is in the frame
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Bibliographic record
Abstract
In most electrified vehicles, there is a high-voltage system to feed the powertrain and a low-voltage system for auxiliary loads. Single-phase and three-phase dual active bridge converters (1P-DAB and 3P-DAB) are two potential isolated bidirectional topologies that can be used to connect the two systems. While prior research has extensively compared the volume and efficiency aspects of these converters, their reliability has received limited scholarly attention. To fill this research gap, this paper presents a comprehensive analysis comparing the reliability of 1p-DAB and 3p-DAB converters over a wide range of power levels in two distinct temperature conditions. The reliability evaluation is based on a failure rate model developed from widely utilized handbooks and incorporates the Markov model to account for the fault-tolerant capabilities of each converter. The results show that, for the conditions considered, the 3p-DAB has a 3.24% to 44.92% higher reliability than the 1p-DAB considering the fault-tolerant capabilities, with the improvement increasing over time.
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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