A Comprehensive review on electric vehicles charging infrastructures and their impacts on power-quality of the utility grid

By M. R. Khalid, Mohammad Saad Alam, Adil Sarwar, M. S. Jamil Asghar. eTransportation, 2019

299 citations recorded by the source corpus.

Abstract The large penetration of electric vehicles (EV) charging stations in existing utility grid is bringing up many power-quality problems which highly affect the load performances at the large and small consumer ends. This trend seems to grow at more pronounced rate as nowadays there is a shift from using internal combustion (IC) engine based vehicles to EV due to their superiorities. EV chargers convert the ac power to dc power for charging of EV batteries. During this conversion of power by power electronics high frequency switching converters, harmonics are injected into the grid which degrades the power-quality of line current in the grid. Such injection of harmonics causes electrical and thermal overloading of distribution transformers thus affecting their life expectancy. Other problems include drawing of excess current from the grid, unbalancing between demand and supply in utility grid, voltage deviation in the grid, etc. Thus, it is required to maintain the IEEE-519 power quality standards during charging of EV. This paper presents a survey of the fast charging stations for EV and their impacts on the exiting utility grid along with the solution to overcome these issues.

Subfields: Automotive Engineering, Electrical and Electronic Engineering

View Paper: https://www.semanticscholar.org/paper/def4247ff7d43159b5def0e6bb1a0b9aca101d12

Citations in the corpus