Modélisation et simulation d'un système de distribution d'énergie du type diesel-électrique pour un navire marchand
Bibliographic record
Abstract
RÉSUMÉ: Depuis une dizaine d'années, l'engouement pour les propulsions hybrides du type diesel-électrique à bord des navires marchands n'a fait que croître, et elles s'imposent aujourd'hui comme la propulsion marine incontournable afin de rencontrer les normes environnementales adoptés récemment par l'organisation internationale maritime (IMO). Or, la nature variable des sources d'énergie renouvelable, associée à des changements imprévisibles de la charge, nécessite la mise en œuvre simultanée de systèmes de stockages à haute puissance et à forte densité énergétique.Ce travail porte sur la modélisation et la simulation d'un système de distribution de l'énergie électrique du type hybride pour les navires marchands développé à l'Institut Maritime du Québec (IMQ). Toutes les simulations ont été effectuées par le logiciel Matlab/Simulink et Simpowersystems. Nous présentons les modèles de chacune des composantes du simulateur ainsi que leur intégration. Ce modèle numérique, en complémentarité avec le simulateur physique, permet d'étudier les différentes stratégies d'optimisation des systèmes de propulsion hybrides des navires ainsi que l'intégration des énergies renouvelables (PV, éolien). Les résultats ont été validé par comparaison a ceux rencontrés sur le banc d'essai (simulateur). -- Mot(s) clé(s) en français : systèmes de propulsion hybrides, électricité maritime, énergie renouvelable, stockage d'énergie, propulsion diesel-électrique. -- \nABSTRACT: Over the past decade, the popularity of hybrid diesel-electric propulsion systems on board merchant ships has grown, and they are now the preferred marine propulsion system to meet the environmental standards recently adopted by the International Maritime Organization (IMO). However, the variable nature of renewable energy sources, associated with unpredictable changes in load, requires the simultaneous implementation of high power and high energy density storage systems.This work focuses on the modeling and simulation of a hybrid electrical energy distribution system for merchant ships developed at the Institut Maritime du Québec (IMQ).All simulations were performed using Matlab/Simulink and Simpowersystems software. We present the models of each component of the simulator as well as their integration. This numerical model, in complementarity with the physical simulator, allows to study the different optimization strategies of the hybrid propulsion systems of the ships as well as the integration of renewable energies (PV, wind). The results were validated by comparison with those encountered on the test bench (simulator). -- Mot(s) clé(s) en anglais : Electrical propulsion, energy storage, hybrid systems, Marine electrical power, renewable energy, hybrid diesel-electric propulsion.
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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 | 0.001 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.001 | 0.000 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.005 | 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 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".