Study on the Harmonic Impact of Large Scale Electric Vehicles to Grid

Abstract:

Large scale electric vehicles integration into power grid, as nonlinear loads, will pose inevitable impacts on the operation of power system, one of which the harmonic problem will affect the power quality greatly. Firstly, the article analyzes the characteristics of harmonic caused by electric vehicle charging. And then, the harmonic flow distribution is analyzed based on the IEEE standard node systems. During transient analyses, the electric vehicle charging stations connected to electric grid are represented as harmonic sources. Results show that structure and voltage grade of electric grid, capacity and access points of electric vehicle charging load will have different effects on harmonic problem. At last, a few conclusions are given for connecting electric vehicles to electric grid.

• Periodical: Applied Mechanics and Materials (Volume 443)
• Pages: 273-278
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.443.273
• Online since: October 2013
• Authors: Ceng Ceng Hao, Yue Jin Tang, Jing Shi
• Keywords: Distribution, Electric Grid, Electric Vehicle (EV), Harmonic

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