Energy Storage in Grid-Connected Photovoltaic Plants

Carbone, R.

doi:10.5772/46933

Cited by 2 publications

(2 citation statements)

References 8 publications

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“…However, research has proven that using ESSs in grid-connected PV systems overcomes the power quality problems of distribution grids and makes PV plants more useful and reliable. Furthermore, ESSs provide auxiliary services to the grid such as load balancing, peak shaving, voltage and frequency regulation, and power flow management [5].…”

Section: Introductionmentioning

confidence: 99%

Optimal cost-based model for sizing grid-connected PV and battery energy system

Khawaja

Giaouris

Patsios

et al. 2017

2017 IEEE Jordan Conference on Applied Electrical Engineering and Computing Technologies (AEECT)

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Photovoltaic-battery energy systems (PV-BESs) have recently emerged as a promising alternative energy solution for electricity consumers. Due to the high level of unpredictability and intermittency associated with solar energy, the optimal sizing and intermittency mitigation of PV-BESs is necessary while integrating them into the grid. This paper presents a technical and economical model for the optimal sizing of a grid-connected PV-BES system for different battery technologies. An iterative analytical approach is utilized to determine the battery capacity, generate multiple combinations of PV-BES over a defined range of PV rated power, and apply a proper energy management strategy to control the energy flow through the system. This is followed by an economic model to calculate the system levelized cost of energy (LCOE) for all possible PV-BES sizes. The optimal PV size and best BES coupled with the PV system is chosen depending on the minimum LCOE. In this context, an improved formula of LCOE is proposed which includes new parameters reflecting the impact of surplus PV output and the energy purchased from the grid. Additionally, the proposed model uses the levelized cost of delivery (LCOD) for BES and compares it with system LCOE. Data over one year of hourly solar irradiation, temperature and load demand are used for system sizing. The results show that the minimum system LCOE is observed when the PV rated power is 710 KW, and the most suitable BES in conjunction with the PV system is redox flow battery with 1 MWh capacity. A cost reduction of 18% obtained compared to the grid electricity price. Moreover, the proposed model allows 75% of self-consumed energy by the PV-BES compared to 48% when using the PV system alone.

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Section: Introductionmentioning

confidence: 99%

Optimal cost-based model for sizing grid-connected PV and battery energy system

Khawaja

Giaouris

Patsios

et al. 2017

2017 IEEE Jordan Conference on Applied Electrical Engineering and Computing Technologies (AEECT)

View full text Add to dashboard Cite

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“…As a consequence, in order to not compromise reliability and quality of the supply, modern power systems have now to become "smarter", for properly managing power received both from centralized and distributed sources; of course, this could be accomplished by means of sophisticated control and communication technologies but, undoubtedly, also energy-storage systems can have a central role [1][2][3][4][5][6][7][8][9][10][11][12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Smart Utilization of Batteries in Grid-Connected PV-Plants

Carbone

2017

International Journal of Modern Research in Electrical and Elec

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Energy storage is undoubtedly a crucial aspect for the optimal managing of modern active distribution systems. In this paper, a smart utilization of batteries within grid-connected PV-plants is introduced and discussed. Batteries are utilized for maximizing the power generation of a PV-field operating under partial shading conditions, also obtaining the conventional energy storage task. In fact, batteries are proposed to be utilized in a distributed framework together with simple boost-type DC-DC converters; by this way, the power generated by a PV-field can be maximized also in presence of significant mismatches among different PV-modules connected in series, attaining some important advantages with respect to both conventional PV-plants with a centralized energy storage system or to conventional distributed Maximum Power Point Tracking (MPPT) systems with no batteries. Experimental and numerical data are presented, analyzed and discussed.

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Energy Storage in Grid-Connected Photovoltaic Plants

Cited by 2 publications

References 8 publications

Optimal cost-based model for sizing grid-connected PV and battery energy system

Optimal cost-based model for sizing grid-connected PV and battery energy system

Smart Utilization of Batteries in Grid-Connected PV-Plants

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