Title: Analysis of non-sinusoidal wave generation during electric vehicle charging and their impacts on the power system
Authors: Larry Durante; Matthew Nielsen; Prasanta Ghosh
Addresses: National Grid, 7437 Henry Clay Blvd, Bldg #1, Liverpool, NY 13088, USA ' GE Global Research, Bldg. K1, Room 3C38A, One Research Circle, Niskayuna, NY 12309, USA ' Syracuse University, 4-206 Center for Science and Technology, Syracuse, NY 13244, USA
Abstract: Interconnection of EVs could impact adversely the power system operation including power quality and safety of the power grid since the present electric power distribution network may not be designed to support the expected proliferation of EV along with other nonlinear loads and resources that are expected to occur in the future. Numerous studies on the effects of charging EVs using the existing local distribution grid has been reported in the literature, but most works on EVs impact on the distribution network are focused on the fundamental current and voltage waveforms (i.e., 60 Hz) to derive the associated impacts to the electric grid delivery system. In this paper we present our initial work that broadens the above analysis to include current harmonic distortion (iTHD) and the associated voltage harmonic distortion (vTHD) injected into the grid from EV battery charger.
Keywords: harmonics; electric vehicle; transformer; distribution grid.
International Journal of Process Systems Engineering, 2017 Vol.4 No.2/3, pp.138 - 150
Received: 22 Jul 2016
Accepted: 16 Nov 2016
Published online: 25 Jun 2017 *