Simulating the Impacts of Uncontrolled Electric Vehicle Charging in Low Voltage Grids

Haider, Sajjad; Schegner, Peter

doi:10.3390/en14082330

Cited by 9 publications

(6 citation statements)

References 16 publications

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“…In [29,30,34,35], the results are obtained by one-shot simulation. However, this can lead to biased results, especially for LVDNs, which are often small in scale and thus can encompass significant variation in the location of EVs and the specific charging Behavior.…”

Section: Literature Reviewmentioning

confidence: 99%

Design and Implementation of Low-Cost Electric Vehicles (EVs) Supercharger: A Comprehensive Review

Rahman,

Tanvir,

Islam

et al. 2024

IJANS

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This article presents a probabilistic modeling method utilizing smart meter data and an innovative agentbased simulator for electric vehicles (EVs). The aim is to assess the effects of different cost-driven EV charging strategies on the power distribution network (PDN). We investigate the effects of a 40% EV adoption on three parts of Frederiksberg's low voltage distribution network (LVDN), a densely urbanized municipality in Denmark. Our findings indicate that cable and transformer overloading especially pose a challenge. However, the impact of EVs varies significantly between each LVDN area and charging scenario. Across scenarios and LVDNs, the share of cables facing congestion ranges between 5% and 60%. It is also revealed that time-of-use (ToU)-based and single-day cost-minimized charging could be beneficial for LVDNs with moderate EV adoption rates. In contrast, multiple-day optimization will likely lead to severe congestion, as such strategies concentrate demand on a single day that would otherwise be distributed over several days, thus raising concerns about how to prevent it. The broader implications of our research suggest that, despite initial worries primarily centered on congestion due to unregulated charging during peak hours, a transition to cost-based smart charging, propelled by an increasing awareness of time-dependent electricity prices, may lead to a significant rise in charging synchronization, bringing about undesirable consequences for the power distribution network (PDN).

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Section: Literature Reviewmentioning

confidence: 99%

Design and Implementation of Low-Cost Electric Vehicles (EVs) Supercharger: A Comprehensive Review

Rahman,

Tanvir,

Islam

et al. 2024

IJANS

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“…Mohammad Mehdi Amiri 1 *, Saleh Aghajan-Eshkevari 1 , Mohammad Ali Rahimi 1 and Ali Samari 2 1 Faculty of Electrical Engineering, Shahid Beheshti University, Tehran, Iran 2 Faculty of Electrical Engineering, Bu-Ali Sina University, Hamadan, Iran *Address all correspondence to: mehdi_hmf@yahoo.com 5. Reduced need for conventional reserves: Traditional power plants often maintain spinning reserves to respond to sudden changes in demand.…”

Section: Author Detailsmentioning

confidence: 99%

“…Overloading: The sudden and simultaneous charging of multiple EVs, especially during peak periods, can lead to increased demand on the distribution network. If the infrastructure is not designed to handle this increased load, it can result in the overloading of transformers, feeders, and other components, potentially leading to equipment failures and service disruptions [2,3].…”

Section: Introductionmentioning

confidence: 99%

A Review on Utilization of Electric Vehicles for Mitigating the Power Quality Issues in Power Systems

Mehdi Amiri,

Aghajan-Eshkevari,

Ali Rahimi

et al. 2024

Power Quality - New Insights [Working Title]

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The widespread adoption of EVs can alleviate strain on power grids and enhance power quality in multiple ways. First, the integration of EVs enables better utilization of renewable energy sources by serving as mobile energy storage units. During periods of peak renewable energy generation, excess power can be stored in EV batteries, reducing curtailment and maximizing resource efficiency. Second, smart charging infrastructure and vehicle-to-grid (V2G) technology allow EVs to interact with the grid intelligently. Through V2G systems, EVs can supply power back to the grid during high-demand periods, effectively functioning as decentralized energy storage units. This bidirectional energy flow helps stabilize voltage and frequency fluctuations, ultimately improving overall power quality. Furthermore, EVs can facilitate load balancing by enabling charging during off-peak hours, spreading the electricity demand more evenly throughout the day. This approach minimizes the strain on the grid during peak times and enhances system stability. In summary, electric vehicles not only reduce emissions and promote sustainability but also contribute to optimizing power generation, storage, and distribution, leading to a more resilient and higher-quality power supply. In this chapter, the impact of electric vehicles on improving the quality of power in the voltage and frequency sections has been investigated.

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“…The authors also proposed a novel approach to decrease network congestion using DERs such as solar, BSS and EVs. In [25], solar PV and EVs integrations in distribution networks are found most optimal for rural and urban electrification using DigSilent Powerfactory.…”

Section: Literature Reviewmentioning

confidence: 99%

Analysis of Optimal Integration of EVs and DGs Into CIGRE’s MV Benchmark Model

et al. 2022

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In today's transportation sector, the growing number of electric vehicles (EVs) is progressively replacing petroleum-fueled vehicles, which are also expected to minimize greenhouse gas emissions. The main problem with EVs is the requirement of charging energy, which is fed through distribution network, while simultaneously feeding already connected load. The EV's integration with the distribution network will overload the network due to EV's charging load, which will eventually trip the power system protection. In this context, it is necessary to minimize power losses, improve voltage profile with sustainable power supply network. Therefore, optimal placement of EVs is required in the distribution network. Conventionally, researchers have used DGs to minimize power losses and improve voltage profile. In this paper, authors analyzed the effect of EV's integration with simultaneous placement of distributed generations (DGs). The integration of EVs with higher penetration of DGs is cumbersome due to higher power losses and voltage variances that are outside allowable boundaries. The optimal placement of EVs into the distribution system with higher penetration of DGs is proposed in this paper using a battle royale optimization (BRO) algorithm. Since it is a new problem on CIGRE network which is not discussed before. Hence, the authors compared results with three most famous algorithms namely genetic algorithm (GA), particle swarm optimization (PSO), and accelerated PSO (APSO). The optimization problem is developed as a multi-objective function while decreasing active and reactive power losses, and minimising maximum voltage deviation index. The studied distribution network is the CIGRE 14-bus medium voltage (MV) distribution network. Three case studies are taken in which EVs are integrated in two scenarios with optimally sized and located DGs systems in the CIGRE distribution network using MATLAB. Case-1 includes simple network with DGs integration. Case-2 includes EVs only in the simple network, and case-3 finally includes EVs and DGs for optimal placement with minimum losses. The placement of the EVs results in a decrease in power losses and voltage deviation indices. The bus voltages of case-2, on the other hand, stay unchanged when the EVs are integrated. Case 3 with BRO showed the large reduction in power losses owing to the addition of EVs to the distribution network with DGs (from 19.98 kW, and 19.89 kVar to 2.54 kW, and 3.35 kVar).INDEX TERMS Accelerated PSO (APSO), battle royale optimization (BRO) algorithm, CIGRE 14-bus MV distribution network, distributed generators, genetic algorithm (GA), multi-objective optimization, optimal placement of EVs, particle swarm optimization (PSO), power loss minimization, and voltage profile improvement.

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Simulating the Impacts of Uncontrolled Electric Vehicle Charging in Low Voltage Grids

Cited by 9 publications

References 16 publications

Design and Implementation of Low-Cost Electric Vehicles (EVs) Supercharger: A Comprehensive Review

Design and Implementation of Low-Cost Electric Vehicles (EVs) Supercharger: A Comprehensive Review

A Review on Utilization of Electric Vehicles for Mitigating the Power Quality Issues in Power Systems

Analysis of Optimal Integration of EVs and DGs Into CIGRE’s MV Benchmark Model

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