Selective Protection Analysis Method for DC Power Plant Propulsion Systems in Electric Ships
Why this work is in the frame
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Bibliographic record
Abstract
Nowadays, a large number of ships utilize DC power plant propulsion systems. In the past, the selective protection of power systems in AC power propulsion system ships was generally achieved by selecting circuit breakers based on the short-circuit current calculation results and by setting the circuit breakers accordingly. For DC power plant propulsion systems, due to the extensive use of current-limiting protective devices, the peak short-circuit current is related not only to system parameters but also to the selection and characteristics of the protective devices. Protective selection in DC power plant propulsion systems is crucial for maritime safety. This paper elucidates the principles of selective protection during short circuits, proposes a selective protection design method, analyzes a selective protection scheme using a specific vessel as an example, and finally presents a modeling and simulation approach. This paper can serve as a reference for the design of selective protection in similar DC power plant propulsion systems. By selecting appropriate fuses and using selective protection analysis methods, system safety can be improved.
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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 | 0.001 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.004 | 0.004 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.001 |
| 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