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A Study on Voltage Sag Considering Real-Time Traffic Volume of Electric Vehicles in South Korea
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 Title & Authors
A Study on Voltage Sag Considering Real-Time Traffic Volume of Electric Vehicles in South Korea
Go, Hyo-Sang; Kim, Doo-Ung; Kim, Jun-Hyeok; Lee, Soon-Jeong; Kim, Seul-Ki; Kim, Eung-Sang; Kim, Chul-Hwan;
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This paper analyzes the effect of voltage sag on distribution systems due to the connection of Electric Vehicles (EVs). In order to study the impact of the voltage sag on the power system, two scenarios have been selected in this paper. The distribution system and EVs are modeled using the Electro Magnetic Transients Program (EMTP). The numbers of EVs are predicted based on the number of vehicles in distribution system of Seoul. In addition, the number of EVs is set up using real-time traffic in Seoul to simulate Scenario I and II. The simulation results show that voltage sag can occur if the distribution system has more than 30% of the total number of vehicles.
Electric vehicle;Infrastructure scenarios;Initiation vehicle rate;Lithium-ion battery;PWM AC/DC converter, SoC(State of Charge);Simultaneous charging rate;Voltage sag;Home charging system;
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