Abstract
To mitigate the adverse effects of high-penetration renewable energy, large-scale, long-duration energy storage systems (LSLD-ESSs) have gained significant attention. Currently, feasible LSLD-ESSs, such as pumped hydro energy storage (PHES) and compressed air energy storage (CAES), face limitations due to specific terrestrial constraints. To address these challenges, gasbag-structured compressed supercritical carbon dioxide energy storage (G-CSCES) has been developed. However, existing studies primarily focus on exergoeconomic optimization, and current cavern-structured CAES models are not applicable to G-CSCES, hindering its use for ancillary services. This letter proposes a comprehensive dynamic model for G-CSCES, encompassing thermodynamic and power dynamic, to enhance its application for frequency regulation in power systems. The proposed model is tested on a real G-CSCES.
| Original language | English |
|---|---|
| Pages (from-to) | 2251-2254 |
| Number of pages | 4 |
| Journal | IEEE Transactions on Sustainable Energy |
| Volume | 16 |
| Issue number | 3 |
| DOIs | |
| State | Published - 2025 |
UN SDGs
This output contributes to the following UN Sustainable Development Goals (SDGs)
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SDG 7 Affordable and Clean Energy
Keywords
- Compressed air energy storage
- dynamic model
- frequency regulation
- supercritical carbon dioxide
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