Speaker
Description
In recent years, the share of renewable energy sources in the Polish power system has grown very rapidly. Currently, the installed capacity in photovoltaic and wind sources constitutes over 40% of all power plants in the national power system [1]. Such a large share of unstable and very dynamic energy sources is a significant threat to the stability of the power system and ensuring a balance between supply and demand in the daily balance of electricity [2,3].
The answer to these problems may be high-power and high-capacity battery energy storage devices connected to the AC grid, among which lithium-ion technology currently dominates [4-7]. This type of energy storage can successfully balance the daily demand and energy production in the power system where there are not enough pumped-storage power plants [8,9] (in Poland, the share of these plants in relation to RES is only 5% [1]). As part of the ENERGAN strategic project, financed by The National Centre for Research and Development in Poland [10], DACPOL company has implemented a full-scale demonstrator of lithium-ion energy storage with a capacity of 500 kWh and a power of 125 kW, which cooperates with a photovoltaic installation with a power of 250 kWp and a low-voltage AC grid (3x400 V, 50 Hz). This article contains selected research results for this energy storage device, documenting, among other things, the energy efficiency of the NMC and LFP lithium-ion technology systems and the correct operation of the complex battery management system (BMS).
Bibliography:
(1) RynekElektryczny.pl. Installed photovoltaic capacity in Poland. Statistics for May. https://www.rynekelektryczny.pl/moc-zainstalowana-fotowoltaiki-w-polsce/.
(2) Maghami, M. R.; Pasupuleti, J.; Ekanayake, J. Energy Storage and Demand Response as Hybrid Mitigation Technique for Photovoltaic Grid Connection: Challenges and Future Trends. J. Energy Storage 2024, 88, 111680. https://doi.org/10.1016/J.EST.2024.111680.
(3) Panigrahi, R.; Mishra, S. K.; Srivastava, S. C.; Srivastava, A. K.; Schulz, N. N. Grid Integration of Small-Scale Photovoltaic Systems in Secondary Distribution Network - A Review. IEEE Trans. Ind. Appl. 2020, 56 (3), 3178–3195. https://doi.org/10.1109/TIA.2020.2979789.
(4) Sutikno, T.; Arsadiando, W.; Wangsupphaphol, A.; Yudhana, A.; Facta, M. A Review of Recent Advances on Hybrid Energy Storage System for Solar Photovoltaics Power Generation. IEEE Access 2022, 10, 42346–42364. https://doi.org/10.1109/ACCESS.2022.3165798.
(5) Nadeem, F.; Hussain, S. M. S.; Tiwari, P. K.; Goswami, A. K.; Ustun, T. S. Comparative Review of Energy Storage Systems, Their Roles, and Impacts on Future Power Systems. IEEE Access 2019, 7, 4555–4585. https://doi.org/10.1109/ACCESS.2018.2888497.
(6) Elalfy, D. A.; Gouda, E.; Kotb, M. F.; Bureš, V.; Sedhom, B. E. Comprehensive Review of Energy Storage Systems Technologies, Objectives, Challenges, and Future Trends. Energy Strateg. Rev. 2024, 54, 101482. https://doi.org/10.1016/J.ESR.2024.101482.
(7) Koohi-Fayegh, S.; Rosen, M. A. A Review of Energy Storage Types, Applications and Recent Developments. J. Energy Storage 2020, 27. https://doi.org/10.1016/J.EST.2019.101047.
(8) Ogarek, P.; Wojtoń, M.; Słyś, D. Hydrogen as a Renewable Energy Carrier in a Hybrid Configuration of Distributed Energy Systems: Bibliometric Mapping of Current Knowledge and Strategies. Energies 2023, Vol. 16, Page 5495 2023, 16 (14), 5495. https://doi.org/10.3390/EN16145495.
(9) Khan, T.; Yu, M.; Waseem, M. Review on Recent Optimization Strategies for Hybrid Renewable Energy System with Hydrogen Technologies: State of the Art, Trends and Future Directions. Int. J. Hydrogen Energy 2022, 47 (60), 25155–25201. https://doi.org/10.1016/J.IJHYDENE.2022.05.263.
(10) DACPOL. Complete vertically integrated technological chain for vertical GaN-on-GaN power electronics: from GaN substrate to Intelligent Energy Bank - EnerGaN. https://www.dacpol.eu/pl/projekt-ncbr.
