Challenges of PHEV penetration to the residential distribution network

Abstract

As Plug-in Hybrid Vehicles (PHEVs) take a greater share in the personal automobile market, their penetration levels may bring potential challenges to electric utility especially at the distribution level. This paper examines the impact of charging PHEVs on a distribution transformer under different charging scenarios. The simulation results indicate that at the PHEV penetration level of interest, new load peaks will be created, which in some cases may exceed the distribution transformer capacity. In order to keep the PHEVs from causing harmful new peaks, thus making the system more secure and efficient, several PHEV charging profiles are analyzed and some possible demand management solutions, including PHEV stagger charge and household load control, are explored. Index Terms--Demand management, household load control, PHEVs and stagger charge. VIII. BIOGRAPHIESShengnan Shao (S'08 -IEEE) is pursuing her Ph.D. degree in the he is serving as the vice president for New Initiatives and Outreach for the IEEE PES and a member of its Board. He is a member-at-large of the IEEE-USA Energy Policy Committee. He is a distinguished lecturer of IEEE PES, and has published over 300 papers on conventional and renewable energy systems, load forecasting, uncertainty evaluation and infrastructure planning.

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