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World Electric Vehicle Journal is published by MDPI from Volume 9 issue 1 (2018). Articles in this Issue were published by The World Electric Vehicle Association (WEVA) and its member the European Association for e-Mobility (AVERE), the Electric Drive Transportation Association (EDTA), and the Electric Vehicle Association of Asia Pacific (EVAAP). They are hosted by MDPI on mdpi.com as a courtesy and upon agreement with AVERE.
Open AccessArticle

DC-Electric Vehicle Supply Equipment Operation Strategies for Enhanced Utility Grid Voltage Stability

Karlsruhe Institute of Technology, Institute of Electric Energy Systems and High-Voltage Technology, Engesserstr. 11, 76133 Karlsruhe, Germany
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World Electr. Veh. J. 2015, 7(4), 530-539; https://doi.org/10.3390/wevj7040530
Published: 28 December 2015
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Abstract

High-power DC electric vehicle supply equipments (EVSE) have a significant impact on voltage stability in low-voltage networks. To ensure the guaranteed voltage characteristics, utility grid operator permit the installation of DC-EVSE only in proximity of local substations. A simplified grid access strategy for DCEVSE is achievable by reactive power support of the EVSE rectifier system. Since decentralized regenerative energy (DRE) already provide voltage band control using reactive power support in lowvoltage networks, the interaction of DRE and EVSE reactive power compensation scheme is investigated. To enhance power converters operation, a fast reacting voltage-droop control concept for DRE and EVSE is proposed for rapid voltage change mitigation. The applicability of a voltage-droop control is verified using probabilistic simulations.
Keywords: fast-charging; electric vehicle supply equipment; reactive voltage support; voltage-droop control fast-charging; electric vehicle supply equipment; reactive voltage support; voltage-droop control
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Krasselt, P.; Boßle, J.; Suriyah, M.R.; Leibfried, T. DC-Electric Vehicle Supply Equipment Operation Strategies for Enhanced Utility Grid Voltage Stability. World Electr. Veh. J. 2015, 7, 530-539.

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