Coordinated active and reactive power control for overvoltage mitigation in physical LV microgrids

Thanh Mai (Corresponding author), Niyam Haque, Thai Hau Vo, Phuong Nguyen

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The share of photovoltaic (PV) systems in the distribution networks is rapidly growing, leading to the common issue of overvoltage at the end of distribution feeders during the periods when peak generation is surplus to consumption. In this study, a hierarchical control is proposed to mitigate overvoltage at the point of connection of PV systems in physical low-voltage
microgrids. The proposed mechanism is comprised of primary and secondary control layers to tackle the overvoltage problems given the communication capability is available. This mechanism employs a multi-objective optimisation approach to effectively coordinate curtailed active power and absorbed reactive power of the PV inverters with the aim of minimising the active power curtailment. The feasibility of the proposed control approach is successfully verified through simulations on a simplified LV network.
Originele taal-2Engels
Pagina's (van-tot)5007-5011
Aantal pagina's5
TijdschriftJournal of Engineering
Volume2019
Nummer van het tijdschrift18
DOI's
StatusGepubliceerd - 10 jan 2019

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