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Plug-in Electric Vehicles charging methods comparison in Electric Power Systems withhigh renewable energy sources penetration

Moschakis Ioannis

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Year 2023
Type of Item Diploma Work
Bibliographic Citation Ioannis Moschakis, "Plug-in Electric Vehicles charging methods comparison in Electric Power Systems with high renewable energy sources penetration", Diploma Work, School of Electrical and Computer Engineering, Technical University of Crete, Chania, Greece, 2023
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Sales of electric vehicles have skyrocketed globally in recent years, mostly as a result of the environmental advantages of electrification. There are no issues with the national energy system as long as electric vehicle penetration rates are kept low. However, if these tariffs continue to rise and the rate at which vehicles are charged is not controlled, the electrical network may become overloaded and unable to meet demand for electricity. At the same time, it starts to act as a flexible load, which will benefit the system at times of high electricity demand. The goal of this diploma thesis is to increase the overall use of RES energy and even out the daily load by simulating the charging needs of electric vehicles during the day as well as their capacity to send energy back to the grid while they are parked. However, in order to approximatively determine the effects that penetration scenarios will have on the grid, time series of the daily load and the daily production of Renewable Energy Sources for the Crete system are used. According to how optimistic the electrification adaptation will be, four distinct penetration scenarios are investigated. Simple direct charging, smart charging and vehicle to grid charging with the option of delivering energy to the grid were used as the charging techniques in order to compare the outcomes.

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