Impact of Plug In Electric Vehicle on Uniformly Distributed System Model

Rising price and decreasing reserves of fossil fuels make electric vehicles a future transportation choice. In addition, awareness to reduce CO2 emissions also encourages the use of public and private electric cars. The increasing need for private electric vehicles will definitely be followed by the addition of plug-in electric vehicles (PEV), especially in residential areas. The PEV penetration in the residential area will directly impact power quality of the secondary distribution networks. Uniformly distributed distribution model using real recorded daily load profile and EV charging model are conducted and designed in power system analysis software to understand the impact of PEV penetration in residential areas. The simulation result shows that voltage drop and line loading increase significantly due to PEV overnight charging and relative to the percentage of penetration and location of PEV installation. Peak shifting is possibly happening during the PEV charging process. The line loading could reach more than 100% loading as the impact of increasing PEV penetration. The overloading condition will overheat the conductor and possibly impact the distribution equipment lifetime.