Uncontrolled Electric Vehicle Charging Impacts on Distribution Electric Power Systems with Primarily Residential, Commercial or Industrial Loads

C. Birk Jones, Matthew Lave, William Vining and Brooke Marshall Garcia
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C. Birk Jones: Sandia National Laboratories, Albuquerque, NM 87123, USA
Matthew Lave: Sandia National Laboratories, Albuquerque, NM 87123, USA
William Vining: Sandia National Laboratories, Albuquerque, NM 87123, USA
Brooke Marshall Garcia: Sandia National Laboratories, Albuquerque, NM 87123, USA

Energies, 2021, vol. 14, issue 6, 1-16

Abstract: An increase in Electric Vehicles (EV) will result in higher demands on the distribution electric power systems (EPS) which may result in thermal line overloading and low voltage violations. To understand the impact, this work simulates two EV charging scenarios (home- and work-dominant) under potential 2030 EV adoption levels on 10 actual distribution feeders that support residential, commercial, and industrial loads. The simulations include actual driving patterns of existing (non-EV) vehicles taken from global positioning system (GPS) data. The GPS driving behaviors, which explain the spatial and temporal EV charging demands, provide information on each vehicles travel distance, dwell locations, and dwell durations. Then, the EPS simulations incorporate the EV charging demands to calculate the power flow across the feeder. Simulation results show that voltage impacts are modest (less than 0.01 p.u.), likely due to robust feeder designs and the models only represent the high-voltage (“primary”) system components. Line loading impacts are more noticeable, with a maximum increase of about 15%. Additionally, the feeder peak load times experience a slight shift for residential and mixed feeders (?1 h), not at all for the industrial, and 8 h for the commercial feeder.

Keywords: electric vehicle; charging; integration; grid impacts; distribution; profile (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2021
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (6)

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