CVR and Loss Optimization Through Active Voltage Management: A Trade-off Analysis

Gharaviahangar, Hani; Ochoa, Luis F.; Liu, Xueqin; Paterson, Geraldine; Ingham, Ben; McLoone, Seán

doi:10.1109/tpwrd.2020.3043245

Cited by 14 publications

(2 citation statements)

References 38 publications

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“…A Grey Wolf Optimization (GWO) based coordinated operation of traditional VVC devices, DNR, and a photovoltaic smart inverter (PVSI) was proposed in [11] to maximize energy savings. Finally, [12] utilized a whale optimization for CVR savings and loss minimization in active distribution networks to achieve energy savings.…”

Section: Literature Surveymentioning

confidence: 99%

White Shark Optimization for Efficient Conservation Voltage Reduction in Photovoltaic-Enriched Distribution Grids with Smart Inverters and Network Reconfiguration

2024

IJIES

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This research paper addresses the limitations inherent in conventional volt-VAR control (VVC) mechanisms, such as on-load tap changers (OLTC) and voltage and capacitor banks (CBs), when applied to the implementation of efficient conservation voltage reduction (CVR) strategies within active distribution networks. In this paper, we present a cost-effective strategy that synergizes the rapid-response capabilities of PV smart inverters with traditional VVC mechanisms to enhance CVR operations. This study delves into the optimal coordination between photovoltaic smart inverters and conventional VVC systems for effective CVR operations. The investigation takes into account the implications of distribution network reconfiguration (DNR) on the overall operational costs, encompassing grid power procurement, emissions, losses, and switching expenses related to OLTC, CB, and remote controlled switches (RCS). To attain the optimal solution, we leverage the recent advancements of the white shark optimization (WSO) technique, meticulously validating its performance through extensive trials conducted on the 119-bus distribution system. The empirical results vividly showcase the substantial advantages of integrating VVC devices and smart inverters, particularly in scenarios characterized by fluctuating load conditions. Notably, the synergistic approach achieves a remarkable 6.51% reduction in energy consumption. Additionally, active and reactive power loss reductions of up to 33.67% and 28.55%, respectively, underscore the potency of the proposed strategy.

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Section: Literature Surveymentioning

confidence: 99%

White Shark Optimization for Efficient Conservation Voltage Reduction in Photovoltaic-Enriched Distribution Grids with Smart Inverters and Network Reconfiguration

2024

IJIES

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“…With 50% photovoltaic (PV) penetration, the results show that energy import minimization is achieved, enabling the regulation of medium-low voltage networks. A Pareto particle swarm optimization (PPSO) was proposed in a previous study [6] for a trade-off analysis in a low-medium-voltage UK residential. However, Gutierrez-Lagos et al [5] only developed CVR based on three-phase optimization, while Gharaviahangar et al [6] focused on one-minute time resolution with four different scenarios of CVR operation.…”

Section: Introduction 1backgroundmentioning

confidence: 99%

Assessment of Voltage Imbalance Improvement and Power Loss Reduction in Residential Distribution Systems in Taiwan

2021

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In this study, the non-dominated sorting genetic algorithm II (NSGA-II) is used to optimize the annual phase arrangement of distribution transformers connected to primary feeders to improve three-phase imbalance and reduce power loss. Based on the data of advanced metering infrastructure (AMI), a quasi-real-time ZIP load model and typical sample distribution systems in Taiwan are constructed. The equivalent circuit models and solution algorithms for typical distribution systems in Taiwan are built using the commercial software package MATLAB. A series of simulations, analyses, comparisons, and explorations is executed. Finally, the quantitative evaluation results for improving the voltage imbalance and reducing the power loss are summarized. For the series of studies, the percentage reductions in (1) total power imbalance TSI, (2) total line loss TLL, (3) average voltage drop AVD, (4) total voltage imbalance factors for zero/negative sequences Td0/Td2, and (5) neutral current of the main transformer ILCO are up to 45.48%, 4.06%, 16.61%, 63.99%, 21.33%, and 88.01%, respectively. The results obtained in this study can be applied for energy saving and can aid the authorities to implement sustainable development policies in Taiwan.

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State-of-the-art technologies for volt-var control to support the penetration of renewable energy into the smart distribution grids

Gholami

Islam²,

Rahman³

et al. 2022

Energy Reports

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CVR and Loss Optimization Through Active Voltage Management: A Trade-off Analysis

Cited by 14 publications

References 38 publications

White Shark Optimization for Efficient Conservation Voltage Reduction in Photovoltaic-Enriched Distribution Grids with Smart Inverters and Network Reconfiguration

White Shark Optimization for Efficient Conservation Voltage Reduction in Photovoltaic-Enriched Distribution Grids with Smart Inverters and Network Reconfiguration

Assessment of Voltage Imbalance Improvement and Power Loss Reduction in Residential Distribution Systems in Taiwan

State-of-the-art technologies for volt-var control to support the penetration of renewable energy into the smart distribution grids

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