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Investigates dynamic power redistribution to reduce voltage issues in electric vehicle charging networks, suggesting improved grid capacity.
The rapid growth of electric vehicle charging in urban areas imposes increasing stress on low- and medium-voltage distribution networks, leading to voltage deviations, higher current loading, and harmonic distortion. This paper investigates dynamic power redistribution among multiple EV charging stations as a means of mitigating these effects. A detailed simulation model of a residential-commercial distribution feeder, including EV chargers and power electronic interfaces, was developed in MATLAB/Simulink. Single-phase and three-phase charging scenarios, with and without LCL filters, were analysed. The proposed dynamic control strategy adapts charging currents according to available feeder capacity and real-time network conditions. Simulation results show that dynamic power redistribution improves voltage profiles, reduces peak loading of lines and transformers, and decreases total harmonic distortion compared to conventional fixed-power charging. The paper confirms that coordinated and adaptive charging can significantly increase the hosting capacity of distribution networks for EV without immediate grid reinforcement.
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Medveď et al. (2026) studied this question.
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