Electric vehicle charging modulation using voltage feedback control

Electric vehicle integration into the distribution system has been a topic of great interest lately due the potential challenges it poses. Previous works have focused on either centralized charge control or distributed charge control to solve these issues. In this paper a voltage feedback controller for EV charging is proposed that, unlike all other proposed methods, does not require any communication between the EV and the utility. This controller compares the system voltage at the point of charging against a reference. The EV charging is reduced as the system voltage approaches this reference. Simulations show that this method can successfully reduce EV charging to eliminate system voltage violations that would otherwise be caused from EV charging.