ABSTRACT
Electric Vehicles (EVs) applications have recently witnessed a significant increase worldwide. This increase has created several challenges and opportunities for the electric grids because of the accompanying increase in EVs’ charging stations. The challenges consist of increased demand on the grid during Grid-to-Vehicle (G2V) charging situation, which may occur during the most critical time (peak load) for the grid. The opportunity is the possibility to use Vehicle-to-Grid (V2G) EVs’ battery discharging during critical situations to help the grid maintain its stability. Therefore, it is necessary to analyze the existing grid infrastructure before building new and additional EVs charging stations. This project aims at designing an EV charging infrastructure for Qatar University (QU) by studying the available parking areas and the campus distribution network. Consequently, the QU campus distribution system was first modeled and simulated using the ETAP software. Most of the available QU distribution system data was collected from the QU Facilities and Service Department. The missing data was approximated due to a lack of documented information. The existing network was then simulated during the peak hour, and the bus loadings were analyzed. This analysis depicted the buses where there is enough spare power to accommodate more loads. As a result, six parking area was selected based on spare capacity, information availability, and the existing of a suitable place for installing PV Panels. These are Multi-floor Car parking, male student housing, female student housing, pharmacy college, medical college, and office building. The system analysis divided into three stages, the first stage is to simulate the normal QU distribution system to compare the result with the second stage and the third stage, the result shows that the system stable and has no shortage power in any of the buses. The second stage is to install EVCS in the chosen buses, compare with the first simulation; there is a high voltage drop in the overall system, and the power loss increase. The third stage is established to overcome the increment of power loss and voltage drop. In the third stage, the PV panels installed in the same chosen busses, the power loss, and the voltage drop improved as the overall power generated from PV panels 7.6 MW. The result shows that there is a high spare capacity, and after adding the PV panels, the number of EVCSs can be increased.