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Open AccessArticle

Coordinated Operation of Energy Storage Systems for Distributed Harmonic Compensation in Microgrids

1
Department of Electrical Engineering, Abbaspour College, Shahid Beheshti University, Tehran 1983969411, Iran
2
Department and Electronics, Information & Bioengineering, Politecnico di Milano, 20133 Milan, Italy
3
Department of Engineering, Shahid Chamran University of Ahvaz; Ahvaz 6135783151, Iran
*
Author to whom correspondence should be addressed.
Energies 2020, 13(3), 771; https://doi.org/10.3390/en13030771
Received: 17 December 2019 / Revised: 16 January 2020 / Accepted: 7 February 2020 / Published: 10 February 2020
(This article belongs to the Special Issue Distributed Energy Storage Devices in Smart Grids)
Energy storage systems (ESSs) bring various opportunities for a more reliable and flexible operation of microgrids (MGs). Among them, energy arbitrage and ancillary services are the most investigated application of ESSs. Furthermore, it has been shown that some other services could also be provided by ESSs such as power quality (PQ) improvements. This issue could be more challenging in MGs with widespread nonlinear loads injecting harmonic currents to the MG. In this paper, the feasibility of ESSs to act as coordinated active harmonic filters (AHF) for distributed compensation was investigated. An optimization model was proposed for the coordination of the harmonic compensation activities of ESSs. The model takes into account the various technical and systematic constraints to economically determine the required reference currents of various AHFs. Simulation cases showed the performance of the proposed model for enhancing the harmonic filtering capability of the MG, reduction in the compensation cost, and more flexibility of the distributed harmonic compensation schemes. It was also shown that ESS activities in harmonic compensation do not have much of an effect on the ESSs revenue from energy arbitrage. Hence, it could make ESSs more justifiable for use in MGs. View Full-Text
Keywords: energy storage system; active harmonic filter; harmonics; power quality; optimization energy storage system; active harmonic filter; harmonics; power quality; optimization
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MDPI and ACS Style

Marini, A.; Piegari, L.; Mortazavi, S.-S.; Ghazizadeh, M.-S. Coordinated Operation of Energy Storage Systems for Distributed Harmonic Compensation in Microgrids. Energies 2020, 13, 771.

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