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Modeling and Analysis of the Plug-In Electric Vehicles Charging in the Unbalanced Radial Distribution System

Padej Pao-la-or and Banyat Boribun
School of Electrical Engineering, Suranaree University of Technology, Nakhon Ratchasima, Thailand
Abstract—This paper presents the modeling and analysis of plug-in electric vehicles (PEVs) charging in an unbalanced radial distribution system. The objective of the study is to evaluate a PEV simulation and the impact of PEV charging on the distribution system. The energy use of a plug-in electric vehicle for a cycle was calculated to plan the charging method of PEVs at a charging station. The constant voltage, constant current, and constant current – voltage charging methods were modeled using voltage and current curves. The PEV charging characteristics were derived from the charging power and queueing analysis. The system power quality according to the load of PEVs charging was analyzed using the unbalanced radial distribution load flow analysis in the Udon Thani Municipality, Thailand. Using this analysis and comparison, the simulation results produced optimal scheduling for charging PEVs improving the unbalance, total power loss, and reducing the number of overloaded feeders.
 
Index Terms—electric vehicles charging, modeling and simulation, queueing theory, unbalanced radial distribution system

Cite: Padej Pao-la-or and Banyat Boribun, "Modeling and Analysis of the Plug-In Electric Vehicles Charging in the Unbalanced Radial Distribution System," International Journal of Electrical and Electronic Engineering & Telecommunications,  Doi: 10.18178/ijeetc.180317
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