Configuration strategy and operation mode design under multi-objective optimisation framework in an off-grid optical storage microgrid
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17 mar 2025
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Pubblicato online: 17 mar 2025
Ricevuto: 27 ott 2024
Accettato: 12 feb 2025
DOI: https://doi.org/10.2478/amns-2025-0185
Parole chiave
© 2025 Zhaobin Wu et al., published by Sciendo
This work is licensed under the Creative Commons Attribution 4.0 International License.
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Characteristic parameters of different types of energy storage batteries
| Battery type | VRLA-B | VRLA-CAP | LFP | V-redox | NaS |
| 1025 | 1050 | 3225 | 3750 | 2780 | |
| 1060 | 850 | 1080 | 1080 | 950 | |
| 320 | 320 | 0 | 205 | 0 | |
| 35 | 35 | 151 | 130 | 132 | |
| Efficiency η/% | 0.75 | 0.80 | 0.75 | 0.85 | 0.70 |
| Life/Year | 5 | 4 | 10 | 10 | 12 |
| SOC range | 0.3~0.8 | 0.1~0.8 | 0.2~0.8 | 0.1~0.9 | 0.3~0.9 |
Configuration parameters of the two simulation scenarios
| Result parameter | Scenario 1 | Scenario 2 |
| Optical storage microgrid photovoltaic system configuration capacity (kW) | 7.25 | 10.00 |
| Energy storage system configuration capacity (kWh) | 18 | 24 |
| Investment cost of micronetwork operators (10,000 ¥) | 1015.755 | 1638.427 |
| Operation and maintenance cost of microgrid optical storage system (10,000 ¥) | 118.52 | 135.33 |
| Operating cost of micro network operator (10,000 ¥) | 143.886 | -820.251 |
| Annual cost of microgrid optical storage system (10,000 ¥) | 1230.705 | 939.885 |
| Distribution network operator investment cost (10,000 ¥) | 183.450 | 0 |
| Operating income of distribution network operators (10,000 ¥) | 225.056 | -584.818 |
| Peak cutting rate (%) | 90.325 | 88.371 |
Optical storage joint configuration parameters
| Configuration item | VRLA-B | VRLA-cap | LFP | V-redox | NaS |
| Photovoltaic theoretical capacity /kW | 285 | 285 | 285 | 285 | 285 |
| Theoretical energy storage capacity /kW·h | 850 | 675 | 675 | 724 | 675 |
| σ |
0.015 | 0.015 | 0.015 | 0.015 | 0.015 |
| σ |
0.15 | 0.15 | 0.15 | 0.15 | 0.15 |
| Annual cost of energy storage/¥ | 5218.52 | 5154.82 | 7745.56 | 10250.86 | 8037.47 |
| Energy storage replacement times | 3 | 4 | 1 | 1 | 1 |
| Initial investment in energy storage / 10,000¥ | 121.50 | 65.35 | 247.75 | 325.31 | 256.37 |
| Total energy storage investment / 10,000¥ | 492.50 | 391.58 | 487.38 | 645.77 | 509.68 |