Optimal Voltage Control in Distribution Systems With Intermittent PV Using Multiobjective Grey-Wolf-Lévy Optimizer

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Optimal Voltage Control in Distribution Systems With Intermittent PV Using Multiobjective Grey-Wolf-Lévy Optimizer. / Mahmoud, Karar; Hussein, Mahmoud M.; Abdel-Nasser, Mohamed; Lehtonen, Matti.

In: IEEE Systems Journal , 14.08.2019.

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@article{3efb73c187e84f1f81286d47f9218798,
title = "Optimal Voltage Control in Distribution Systems With Intermittent PV Using Multiobjective Grey-Wolf-L{\'e}vy Optimizer",
abstract = "The intermittent photovoltaic (PV) units significantly affect the performance of distribution systems, and they often cause several operational problems, most importantly, voltage rise/drop. At high PV penetration, excessive tap movements of transformers and high curtailed PV power are expected to completely solve the voltage violation problem. In this paper, we propose an optimal voltage control method for distribution systems considering the number of tap movements of transformers and the active power curtailment of PV units. The objective function of the proposed method comprises: 1) voltage drop violation, 2) voltage rise violation, 3) tap movement rate (TMR) of transformers, and 4) curtailed power of PV (CPPV). A multiobjective grey wolf optimizer integrated with a L{\'e}vy mutation operator (GWO-L{\'e}vy) is formulated to accurately solve the voltage control problem. A 24-h simulation is performed on the 119-bus distribution system with PV and different types of loads. The performance of GWO-L{\'e}vy is compared with three other optimizers, finding that it achieves the best performance. The simulation results demonstrate the efficacy of the proposed method for solving the voltage violation problem with PV while simultaneously optimizing TMR and CPPV.",
keywords = "Distribution systems, Grey wolf optimizer (GWO), L{\'e}vy operator, Photovoltaic (PV), Voltage drop, Voltage rise",
author = "Karar Mahmoud and Hussein, {Mahmoud M.} and Mohamed Abdel-Nasser and Matti Lehtonen",
year = "2019",
month = "8",
day = "14",
doi = "10.1109/JSYST.2019.2931829",
language = "English",
journal = "IEEE Systems Journal",
issn = "1932-8184",

}

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TY - JOUR

T1 - Optimal Voltage Control in Distribution Systems With Intermittent PV Using Multiobjective Grey-Wolf-Lévy Optimizer

AU - Mahmoud, Karar

AU - Hussein, Mahmoud M.

AU - Abdel-Nasser, Mohamed

AU - Lehtonen, Matti

PY - 2019/8/14

Y1 - 2019/8/14

N2 - The intermittent photovoltaic (PV) units significantly affect the performance of distribution systems, and they often cause several operational problems, most importantly, voltage rise/drop. At high PV penetration, excessive tap movements of transformers and high curtailed PV power are expected to completely solve the voltage violation problem. In this paper, we propose an optimal voltage control method for distribution systems considering the number of tap movements of transformers and the active power curtailment of PV units. The objective function of the proposed method comprises: 1) voltage drop violation, 2) voltage rise violation, 3) tap movement rate (TMR) of transformers, and 4) curtailed power of PV (CPPV). A multiobjective grey wolf optimizer integrated with a Lévy mutation operator (GWO-Lévy) is formulated to accurately solve the voltage control problem. A 24-h simulation is performed on the 119-bus distribution system with PV and different types of loads. The performance of GWO-Lévy is compared with three other optimizers, finding that it achieves the best performance. The simulation results demonstrate the efficacy of the proposed method for solving the voltage violation problem with PV while simultaneously optimizing TMR and CPPV.

AB - The intermittent photovoltaic (PV) units significantly affect the performance of distribution systems, and they often cause several operational problems, most importantly, voltage rise/drop. At high PV penetration, excessive tap movements of transformers and high curtailed PV power are expected to completely solve the voltage violation problem. In this paper, we propose an optimal voltage control method for distribution systems considering the number of tap movements of transformers and the active power curtailment of PV units. The objective function of the proposed method comprises: 1) voltage drop violation, 2) voltage rise violation, 3) tap movement rate (TMR) of transformers, and 4) curtailed power of PV (CPPV). A multiobjective grey wolf optimizer integrated with a Lévy mutation operator (GWO-Lévy) is formulated to accurately solve the voltage control problem. A 24-h simulation is performed on the 119-bus distribution system with PV and different types of loads. The performance of GWO-Lévy is compared with three other optimizers, finding that it achieves the best performance. The simulation results demonstrate the efficacy of the proposed method for solving the voltage violation problem with PV while simultaneously optimizing TMR and CPPV.

KW - Distribution systems

KW - Grey wolf optimizer (GWO)

KW - Lévy operator

KW - Photovoltaic (PV)

KW - Voltage drop

KW - Voltage rise

U2 - 10.1109/JSYST.2019.2931829

DO - 10.1109/JSYST.2019.2931829

M3 - Article

JO - IEEE Systems Journal

JF - IEEE Systems Journal

SN - 1932-8184

ER -

ID: 36056016