Optimal oversizing of utility-owned renewable DG inverter for voltage rise prevention in MV distribution systems

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@article{bb2235a18fac4ef0a90e3920192993c4,
title = "Optimal oversizing of utility-owned renewable DG inverter for voltage rise prevention in MV distribution systems",
abstract = "The penetration of renewable distributed generations (DG) is recently being increased in distribution systems. Due to the intermittent nature of these generation units, several technical problems are expected based on the environmental conditions and load profiles, such as voltage rise and increasing losses. A traditional way to alleviate these technical problems is to oversize their interfacing inverters for releasing their capacities to inject/absorb further reactive power. In the literature, the DG inverter is normally oversized by a certain percentage (e.g., 10{\%}) for this purpose. In turn, an optimization-based method is proposed in this paper to calculate the optimal oversize of the interfaced inverter employed in various utility-owned DG types to regulate voltages and to reduce losses with minimum total costs. The proposed method considers the active power curtailment (APC) feature in the DG inverter and the transformer taps. Different control schemes of the interfaced inverter are considered and incorporated in the proposed optimization model. The simulation results demonstrate the effectiveness of the proposed method compared with existing methods.",
keywords = "Active power curtailment, Distributed generation, Distribution systems, Optimal inverter size, Reactive power capability, Voltage regulation",
author = "Abdelfatah Ali and David Raisz and Karar Mahmoud",
year = "2019",
month = "2",
day = "1",
doi = "10.1016/j.ijepes.2018.08.040",
language = "English",
volume = "105",
pages = "500--513",
journal = "International Journal of Electrical Power and Energy Systems",
issn = "0142-0615",
publisher = "Elsevier Limited",

}

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TY - JOUR

T1 - Optimal oversizing of utility-owned renewable DG inverter for voltage rise prevention in MV distribution systems

AU - Ali, Abdelfatah

AU - Raisz, David

AU - Mahmoud, Karar

PY - 2019/2/1

Y1 - 2019/2/1

N2 - The penetration of renewable distributed generations (DG) is recently being increased in distribution systems. Due to the intermittent nature of these generation units, several technical problems are expected based on the environmental conditions and load profiles, such as voltage rise and increasing losses. A traditional way to alleviate these technical problems is to oversize their interfacing inverters for releasing their capacities to inject/absorb further reactive power. In the literature, the DG inverter is normally oversized by a certain percentage (e.g., 10%) for this purpose. In turn, an optimization-based method is proposed in this paper to calculate the optimal oversize of the interfaced inverter employed in various utility-owned DG types to regulate voltages and to reduce losses with minimum total costs. The proposed method considers the active power curtailment (APC) feature in the DG inverter and the transformer taps. Different control schemes of the interfaced inverter are considered and incorporated in the proposed optimization model. The simulation results demonstrate the effectiveness of the proposed method compared with existing methods.

AB - The penetration of renewable distributed generations (DG) is recently being increased in distribution systems. Due to the intermittent nature of these generation units, several technical problems are expected based on the environmental conditions and load profiles, such as voltage rise and increasing losses. A traditional way to alleviate these technical problems is to oversize their interfacing inverters for releasing their capacities to inject/absorb further reactive power. In the literature, the DG inverter is normally oversized by a certain percentage (e.g., 10%) for this purpose. In turn, an optimization-based method is proposed in this paper to calculate the optimal oversize of the interfaced inverter employed in various utility-owned DG types to regulate voltages and to reduce losses with minimum total costs. The proposed method considers the active power curtailment (APC) feature in the DG inverter and the transformer taps. Different control schemes of the interfaced inverter are considered and incorporated in the proposed optimization model. The simulation results demonstrate the effectiveness of the proposed method compared with existing methods.

KW - Active power curtailment

KW - Distributed generation

KW - Distribution systems

KW - Optimal inverter size

KW - Reactive power capability

KW - Voltage regulation

UR - http://www.scopus.com/inward/record.url?scp=85052860898&partnerID=8YFLogxK

U2 - 10.1016/j.ijepes.2018.08.040

DO - 10.1016/j.ijepes.2018.08.040

M3 - Article

VL - 105

SP - 500

EP - 513

JO - International Journal of Electrical Power and Energy Systems

JF - International Journal of Electrical Power and Energy Systems

SN - 0142-0615

ER -

ID: 35288852