Evaluation of Distribution Network Modelling for Electric Vehicle Charging Impact
Electric vehicle (EV) is a new and uprising technology in the transportation and power sector that benefits the economy and environment. This study presents a comprehensive review of electric vehicle technology and its associated equipment, such as battery charger and charging station. An introduction is made on the residential charging type of electric vehicles in terms of charging time, size of battery and power of charger. The influence of electric vehicle charging on utility distribution system in terms of voltage and thermal limits are investigated in this paper. The current power system may not able to support the EV charging loads. The usage of electric vehicles, customer power consumption behavior and the distribution of electric vehicle used in a residential area may affect its power system structure. To study the influence of EV charging in a power distribution system, analysis were conducted based on these three factors. Firstly, the new network will be simulated using all the standard parameter for residential. Secondly, the EV load will be inserted into the network based on different scenarios of EV’s penetration level and the investigation will be carried out to study the impact of EV on the distribution network in terms of voltage and thermal limits. It is found that the higher penetration level of EV charging will lead to the higher voltage drop and feeders’ thermal limit.
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