Battery Storage Integration in Voltage Unbalance and Overvoltage Mitigation Control Strategies and Its Impact on the Power Quality

Dimitar Bozalakov, Mohannad J. Mnati, Joannes Laveyne, Jan Desmet and Lieven Vandevelde
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Dimitar Bozalakov: Electrical Energy Laboratory (EELAB), Department of Electrical Energy, Metals, Mechanical Constructions and Systems (EEMMeCS), Ghent University, Technologiepark-Zwijnaarde 131 9052 Ghent, Belgium
Mohannad J. Mnati: Electrical Energy Laboratory (EELAB), Department of Electrical Energy, Metals, Mechanical Constructions and Systems (EEMMeCS), Ghent University, Technologiepark-Zwijnaarde 131 9052 Ghent, Belgium
Joannes Laveyne: Electrical Energy Laboratory (EELAB), Department of Electrical Energy, Metals, Mechanical Constructions and Systems (EEMMeCS), Ghent University, Technologiepark-Zwijnaarde 131 9052 Ghent, Belgium
Jan Desmet: Electrical Energy Laboratory (EELAB)-LEMCKO, Campus Kortrijk, Department of Electrical Energy, Metals, Mechanical Constructions and Systems (EEMMeCS), Ghent University, Graaf Karel de Goedelaan 34, 8500 Kortrijk, Belgium
Lieven Vandevelde: Electrical Energy Laboratory (EELAB), Department of Electrical Energy, Metals, Mechanical Constructions and Systems (EEMMeCS), Ghent University, Technologiepark-Zwijnaarde 131 9052 Ghent, Belgium

Energies, 2019, vol. 12, issue 8, 1-26

Abstract: The increased utilisation of distributed renewable energy sources in low voltage grids leads to power quality problems such as overvoltages and voltage unbalance. This imposes challenges to the distribution system operators to maintain the power quality in their grids. To overcome these issues, energy storage systems could be integrated together with the distributed energy resources and the stored energy could be used when needed to better improve power quality and achieve better grid performance. However, integrating an energy storage system introduces additional cost, therefore, determining the right capacity is essential. In this article, an energy storage system is combined with the classical positive-sequence control strategy and the three-phase damping control strategy. The three-phase damping control strategy is able to mitigate the voltage unbalance by emulating a resistive behaviour towards the zero- and negative-sequence voltage components. This resistive behaviour can be set on different values such that the desired voltage unbalance mitigation is achieved. Hence, the three-phase damping control strategy, equipped with the energy storage system is investigated under different values of the resistive behaviour. Both control strategies are investigated under the same conditions and the impact of the different capacities of the energy storage systems is investigated.

Keywords: energy storage; storage capacity; overvoltages; voltage unbalance; ancillary services (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2019
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (5)

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