This paper presents a methodology for modeling and
analyzing the load demand in a distribution system due to electric
vehicle (EV) battery charging. Following a brief introduction to the
common types of EV batteries and their charging characteristics,
an analytical solution for predicting the EV charging load is developed.
The method is stochastically formulated so as to account
for the stochastic nature of the start time of individual battery
charging and the initial battery state-of-charge. A comparative
study is carried out by simulating four EV charging scenarios, i.e.,
uncontrolled domestic charging, uncontrolled off-peak domestic
charging, “smart” domestic charging and uncontrolled public
charging—commuters capable of recharging at the workplace.
- electric vehicle battery charging
- distribution system