The impact of Electric Vehicle battery charging on distribution transformers

Author

Rutherford, Matthew J. ; Yousefzadeh, Vahid

Author_Institution

Dept. of Comput. Sci., Univ. of Denver, Denver, CO, USA

fYear

2011

fDate

6-11 March 2011

Firstpage

396

Lastpage

400

Abstract

Electric Vehicles (EV) and Plug-in Hybrid Electric Vehicles (PHEV) have a limited share of the current market. However, it is widely expected that the situation will change in the near future and the penetration of battery-operated vehicles will increase significantly. This paper addresses the impact of the mass operation and electricity consumption of EVs and PHEVs on the distribution utility and more specifically on distribution transformers. The charging effect of various types of EV batteries on the life of distribution transformers is analyzed. A typical annual base-load on the distribution transformer is considered and compared with different battery charging load scenarios. Simulation results show that distributing the load profile of the battery charging helps to decrease the distribution transformer loss of life. In addition, power management of the EV and PHEV battery charging and the interface with the Smart-Grid is explained.

Keywords

battery chargers; battery powered vehicles; hybrid electric vehicles; power transformers; smart power grids; base-load; battery charging; battery-operated vehicles; distribution transformers; electricity consumption; load profile; mass operation; plug-in hybrid electric vehicles; power management; smart grid; Aging; Batteries; FAA; Load modeling; Oil insulation; Power transformer insulation; Vehicles; EV charging; Smart-Grid; distribution transformer; loss-of-life;

fLanguage

English

Publisher

ieee

Conference_Titel

Applied Power Electronics Conference and Exposition (APEC), 2011 Twenty-Sixth Annual IEEE

Conference_Location

Fort Worth, TX

ISSN

1048-2334

Print_ISBN

978-1-4244-8084-5

Type

conf

DOI

10.1109/APEC.2011.5744627

Filename

5744627