Integrated Optimal Design and Operation of Compressed Air Energy Storage for Decentralized Applications
Notice bibliographique
Résumé
This thesis aims to investigate the integration of compressed air energy storage (CAES) technology into decentralized energy systems, addressing associated technological and integration challenges within the dynamic energy system environment. A multi-layer simulation-optimization framework is developed to comprehensively evaluate the feasibility of integrating decentralized CAES into local hybrid energy systems (HES) through optimal sizing and operation. In the first layer, an improved energy management operation strategy (I-EMOS) is designed to enhance the integration of adiabatic-CAES (A-CAES) systems into decentralized applications. In doing so, the interaction and limitations of A-CAES subsystems, including power conversion units, air storage tank, and thermal energy storage, are considered to evaluate the long-term performance and dynamic behavior of A-CAES systems, especially when connected to intermittent renewable energy sources and end-user load demand. Subsequently, the second layer develops a holistic sizing-planning framework, including a generic A-CAES model and various alternative power dispatch strategies (PDS), based on the application potentials of A-CAES. This module aims to enhance A-CAES contribution while minimizing the levelized cost of energy and achieving the optimal configuration for the corresponding applications. Eventually, the final layer focuses on improving the resilience of the energy system, incorporating A-CAES technology, within scenarios involving limited energy sources and hybrid energy storage solutions. Therefore, an operational unit-commitment optimization model is developed, considering the A-CAES system's response and charging-discharging transition times. This model is integrated into the sizing-planning module to co-optimize the economic performance and system resilience through two-stage optimization, involving long-term planning and short-term scheduling. The methodology is applied to Concordia University buildings in Montreal, Canada. Validation against data from an existing A-CAES pilot plant shows a 42.5% improvement using I-EMOS compared to traditional EMOS. \nOptimal configurations under various PDSs demonstrate energy cost savings between $0.015 and $0.021 per kWh, with significant improvements in electrical load management (52%) and carbon emission reduction (65%) for the system in which A-CAES is planned for both solar energy integration and seasonal load shifting. Furthermore, under the worst-case scenario (zero selling back), the HES achieves a PV self-consumption rate of around 92% and a payback time of 15.5 years. In scenarios of limited grid dependency, a substantial annual resiliency improvement of approximately 41.1% is achieved by integrating the energy storage system. Additionally, despite the superior cost performance of the PV/A-CAES system, the PV-based HES featuring hybrid A-CAES, and battery storage achieves a 47.3% electrical load management ratio and a 96% self-consumption rate, improving by about 6% over HES with only A-CAES system. Furthermore, findings indicate that under optimal operational conditions, even with the highest PV power availability during grid interruptions, the HES could meet 94% of load demand using individual A-CAES, increasing to 100% by integrating fast-response batteries. In conclusion, the proposed framework offers a reliable approach for integrating and customizing decentralized A-CAES systems, considering specific service requirements and constraints. It identifies critical times of loss of power probability, enhances understanding of local energy system design, and facilitates better integration with renewable energy sources and storage systems. The findings provide valuable insights for decision-makers, helping select suitable systems and scenarios based on key performance indicators. The framework also is adaptable to various scale scenarios, accommodating both local and regional generation considerations.
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Comment cette classification a été obtenuedéplier
Prédiction machine sur la base complète
Imitation des enseignantsNi prévalence calibrée, ni vérité terrain. Validation humaine à venir. Le volet Gemma est une étiquette directe du modèle pour chaque travail de la base, lue sur la notice réduite au titre. Le volet Codex est un classifieur appris des 10 348 étiquettes directes de Codex et calibré sur les taux pondérés de l'échantillon; les champs sans appui suffisant ne portent aucun appel Codex. Le mode candidate est l'union des deux volets; le consensus est leur intersection. Ces sorties portent le statut machine_predicted_unvalidated et ne sont pas des étiquettes humaines.
Scores du classifieur distillé par catégorie (deux têtes)
| Catégorie | Codex | Gemma |
|---|---|---|
| Métarecherche | 0,000 | 0,001 |
| Méta-épidémiologie (sens strict) | 0,000 | 0,000 |
| Méta-épidémiologie (sens large) | 0,001 | 0,000 |
| Bibliométrie | 0,000 | 0,000 |
| Études des sciences et des technologies | 0,000 | 0,000 |
| Communication savante | 0,001 | 0,001 |
| Science ouverte | 0,001 | 0,001 |
| Intégrité de la recherche | 0,000 | 0,000 |
| Charge utile insuffisante (le modèle a refusé de juger) | 0,001 | 0,000 |
Scores machine (provisoires)
Les deux têtes enseignantes du modèle étudiant, lues sur ce travail. Un score ordonne la base pour la relecture; il n'affirme jamais une catégorie, et le statut de validation accompagne chaque rangée tel quel.
Scores de référence d'un modèle non mature (critères de maturité non atteints, 7 itérations). Un score ordonne; il n'affirme jamais une catégorie.
score_only:v0-immature-baseline · tel quel depuis la passe de notation : score_only signifie que le nombre peut ordonner les travaux, et qu'aucune étiquette de catégorie n'en découleClassification
machine, non validéePrédiction automatique; un appel candidat d’une seule source (Gemma direct ou Codex distillé), pas un consensus.
Le détail, modèle par modèle et score par score, se trouve en fin de page sous « Comment cette classification a été obtenue ».