Investigation of electric vehicle charging station installation and management system in a public institution in Mardin province

Unlimited fossil fuels are decreasing day by day and have begun to be replaced by renewable energy sources. In the transportation sector, fossil fuel-powered vehicles pollute the environment as they cause carbon emissions and are being replaced by environmentally friendly electric vehicles. Developed countries, especially the United States and China, are in a competitive race for electric vehicles. Electric vehicles have also begun to be produced in Turkey and other countries around the world, and the trend towards electric vehicles has increased rapidly. However, electric vehicle users have concerns about access to electric vehicle charging stations. Therefore, the number of electric vehicle charging stations and their accessibility are important. Today, the power of fast electric vehicle charging stations is over 400 kW. These high-power charging stations and electric vehicles that are charged by connecting to these stations can cause an excessive load on the network. In this study, in the governorate campus where public institutions are located in the central district of Mardin province, electric vehicles with a battery charge rate of 20% and that will charge up to 100% were connected to the governorate parking lot, which is located in the governorate campus where only public personnel vehicles are parked and receives its energy from the special transformer that feeds the governorate campus, in scenarios, and the load and current amounts drawn from the transformer were measured with the Matlab Simulink program. The voltage drop was calculated. The results were analyzed according to the maximum 80% charge rate of the transformer. In addition, the number and types of electric vehicle charging stations that can be installed in the governorate parking lot were determined so that the transformer would not exceed 80% charge rate. The results were compared when the transformer value was doubled, and the obtained data were analyzed in detail.