Dynamic impacts of fast-charging stations for electric vehicles on active distribution networks

Shi, Rui; Zhang, Xiaoping; Kong, D.C.; Deng, Na; Wang, P.Y.

doi:10.1109/isgt-asia.2012.6303270

Cited by 20 publications

(9 citation statements)

References 7 publications

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“…Hence, the development of the charging infrastructure as well as efficient Inductive Power Transfer (IPT) [4] has become necessary to meet the requirements of substantial operation of the EVs [5]. For instance, in the United States (US), the National Program Charging Point America has taken an initiative of building nearly 5000 EV charging stations to offer charging services in nine regions of the U.S. [6]. Even a developing country like Bhutan has taken an initiative to set up charging infrastructure for the promotion of the EVs [7].…”

Section: Introductionmentioning

confidence: 99%

Impact of Electric Vehicle Charging Station Load on Distribution Network

et al. 2018

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Recent concerns about environmental pollution and escalating energy consumption accompanied by the advancements in battery technology have initiated the electrification of the transportation sector. With the universal resurgence of Electric Vehicles (EVs) the adverse impact of the EV charging loads on the operating parameters of the power system has been noticed. The detrimental impact of EV charging station loads on the electricity distribution network cannot be neglected. The high charging loads of the fast charging stations results in increased peak load demand, reduced reserve margins, voltage instability, and reliability problems. Further, the penalty paid by the utility for the degrading performance of the power system cannot be neglected. This work aims to investigate the impact of the EV charging station loads on the voltage stability, power losses, reliability indices, as well as economic losses of the distribution network. The entire analysis is performed on the IEEE 33 bus test system representing a standard radial distribution network for six different cases of EV charging station placement. It is observed that the system can withstand placement of fast charging stations at the strong buses up to a certain level, but the placement of fast charging stations at the weak buses of the system hampers the smooth operation of the power system. Further, a strategy for the placement of the EV charging stations on the distribution network is proposed based on a novel Voltage stability, Reliability, and Power loss (VRP) index. The results obtained indicate the efficacy of the VRP index.

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Section: Introductionmentioning

confidence: 99%

Impact of Electric Vehicle Charging Station Load on Distribution Network

et al. 2018

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“…However, Level III public fast chargers operate at high DC voltages and draw larger powers from electrical grids. Therefore, DC fast charging stations are also connected at the MV level in distribution networks so that higher levels of charging power can be supplied to the point of connection [13,21].…”

Section: Introductionmentioning

confidence: 99%

Voltage Analysis on MV/LV Distribution Networks with the Integration of DC Fast Chargers

Sonder

Cipcigan

Ugalde‐Loo

2020

2020 6th IEEE International Energy Conference (ENERGYCon)

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The development of ultra-low carbon emission electric vehicles (EVs) has been grown rapidly over the last years in response to the large share of greenhouse gas emissions contributed by the transportation sector. One of the main issues among EV drivers is range anxiety, which mainly results from the long charging battery durations. DC fast charging, the latest charging technology, aims to shorten charging duration; however, the success of e-mobility will be also related to the capacity of the distribution network to integrate the new EVs and their chargers. Specifically, the integration of EVs and DC fast chargers will increase the peak demand and may pose significant challenges for MV and LV distribution networks if adequate control measures are not implemented. This paper introduces a topology for the modelling and connection of a DC fast charger on a real MV/LV distribution network and ensures that the network operates within acceptable limits and that consumers connected to it are minimally affected. Simulation results show that DC fast chargers stress the LV distribution network by causing grid congestions; however, local voltage control measures and a vehicle-to-grid technology can improve some of the grid-side challenges.

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“…Next to the future demand for the extensive UFCS network coverage, the existing power grid infrastructure must be carefully reviewed in all necessary technical aspects to smooth out the integration of UFCS. Despite numerous studies covering the impact of UFCS in the literature [3][4][5][6], to the best knowledge of the author, the impact of UFCS on the medium-voltage (MV) grid harmonic resonance is not covered in any literature, but will be addressed here in detail. An UFCS offering several level 3 direct current (DC) charging slots connecting to the MV grid could easily reach MW (250 kW × 4) demand power levels, the harmonic emission to the MV grid of the converters should be assessed carefully.…”

Section: Introductionmentioning

confidence: 99%

Ultra fast charging station harmonic resonance analysis in the Dutch MV grid: application of power converter harmonic model

Sun

Jong

Ćuk

et al. 2017

CIRED - Open Access Proceedings Journal

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Dynamic impacts of fast-charging stations for electric vehicles on active distribution networks

Cited by 20 publications

References 7 publications

Impact of Electric Vehicle Charging Station Load on Distribution Network

Impact of Electric Vehicle Charging Station Load on Distribution Network

Voltage Analysis on MV/LV Distribution Networks with the Integration of DC Fast Chargers

Ultra fast charging station harmonic resonance analysis in the Dutch MV grid: application of power converter harmonic model

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