Effects of Energy Storage Systems Grid Code Requirements on Interface Protection Performances in Low Voltage Networks
AbstractThe ever-growing penetration of local generation in distribution networks and the large diffusion of energy storage systems (ESSs) foreseen in the near future are bound to affect the effectiveness of interface protection systems (IPSs), with negative impact on the safety of medium voltage (MV) and low voltage (LV) systems. With the scope of preserving the main network stability, international and national grid connection codes have been updated recently. Consequently, distributed generators (DGs) and storage units are increasingly called to provide stabilizing functions according to local voltage and frequency. This can be achieved by suitably controlling the electronic power converters interfacing small-scale generators and storage units to the network. The paper focuses on the regulating functions required to storage units by grid codes currently in force in the European area. Indeed, even if such regulating actions would enable local units in participating to network stability under normal steady-state operating conditions, it is shown through dynamic simulations that they may increase the risk of unintentional islanding occurrence. This means that dangerous operating conditions may arise in LV networks in case dispersed generators and storage systems are present, even if all the end-users are compliant with currently applied connection standards. View Full-Text
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Bignucolo, F.; Cerretti, A.; Coppo, M.; Savio, A.; Turri, R. Effects of Energy Storage Systems Grid Code Requirements on Interface Protection Performances in Low Voltage Networks. Energies 2017, 10, 387.
Bignucolo F, Cerretti A, Coppo M, Savio A, Turri R. Effects of Energy Storage Systems Grid Code Requirements on Interface Protection Performances in Low Voltage Networks. Energies. 2017; 10(3):387.Chicago/Turabian Style
Bignucolo, Fabio; Cerretti, Alberto; Coppo, Massimiliano; Savio, Andrea; Turri, Roberto. 2017. "Effects of Energy Storage Systems Grid Code Requirements on Interface Protection Performances in Low Voltage Networks." Energies 10, no. 3: 387.
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