Hierarchical Energy Management of Hybrid Battery Storage Systems for PV Capacity Firming and Spot Market Trading Considering Degradation Costs
Publikation: Beitrag in Fachzeitschrift › Forschungsartikel › Beigetragen › Begutachtung
Beitragende
Abstract
Lithium-ion batteries are currently one of the key technologies for a sustainable energy transition. However, they have a limited calendar and cycle lifetime, which are directly affected by operating conditions. Therefore, our goal is to maximize the benefits of a battery storage over its entire lifespan. Stacking multiple services (multi-use) can increase the utilization of battery storage, whereas coupling different storage technologies with complementary characteristics (hybrid energy storage systems) adds a degree of freedom for efficient and degradation-aware operation. To exploit these technological and economic advantages, we develop an energy management concept and demonstrate it in the application example of a grid-connected photovoltaic plant with hybrid battery storage. The multi-use application consists of capacity firming, participation in the electricity spot market, and peak shaving. To address the different temporal scales of the battery storage tasks, we propose a hierarchical energy management with two levels. The model predictive upper level energy management optimizes the grid power considering the time-varying electricity prices and marginal costs of battery storage operation. This multi-objective optimization problem is solved using a mixed-integer linear program with two-dimensional piecewise linearization of conversion losses and battery degradation costs. The strategy-based lower level energy management allocates power in real time to meet the grid power and ramp-rate requirements despite model and forecast errors. Extensive simulations demonstrate the advantages of the proposed approach owing to a better compliance with grid power requirements, lower conversion losses, and significantly higher benefits of the battery storage system over its lifetime.
Details
Originalsprache | Englisch |
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Seiten (von - bis) | 52669-52686 |
Seitenumfang | 18 |
Fachzeitschrift | IEEE access |
Jahrgang | 12 |
Publikationsstatus | Veröffentlicht - 2024 |
Peer-Review-Status | Ja |
Externe IDs
Scopus | 85190350163 |
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Mendeley | 9fcd3e9b-733f-3be2-879b-89eaf9c903ca |
Schlagworte
Ziele für nachhaltige Entwicklung
ASJC Scopus Sachgebiete
Schlagwörter
- Capacity firming, degradation costs, energy arbitrage, hierarchical control, hybrid energy storage system (HESS), lithium-ion battery aging, mixed-integer linear programming (MILP), multi-use, photovoltaic (PV) power integration, piecewise affine (PWA) approximation