Technical and Economic Impact of PV-BESS Charging Station on Transformer Life: A Case Study

The uncoordinated charging of several plug-in electric vehicles in a parking garage can potentially overload distribution transformer reducing its lifespan. Attempting to mitigate this issue, this paper proposes a smart charging method to minimize electricity consumption costs and avoid transformer...

Full description

Saved in:
Bibliographic Details
Published in:IEEE transactions on smart grid 2019-07, Vol.10 (4), p.4683-4692
Main Authors: Affonso, Carolina de Mattos, Kezunovic, Mladen
Format: Article
Language:English
Subjects:
Aging
Batteries
Battery energy storage system
Buildings
Case studies
Charging
Economic analysis
Economic impact
Electric vehicle charging
Electric vehicles
Electricity consumption
Energy costs
Energy storage
Impact analysis
Overloading
Parking facilities
Photovoltaic cells
photovoltaic generation
Photovoltaic systems
Sensitivity analysis
smart charging
Solar cells
Time of use electricity pricing
transformer loss-of-life
Transformers
Viability
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The uncoordinated charging of several plug-in electric vehicles in a parking garage can potentially overload distribution transformer reducing its lifespan. Attempting to mitigate this issue, this paper proposes a smart charging method to minimize electricity consumption costs and avoid transformer overloading by considering a charging station integrated with photovoltaic generation and battery energy storage system. The optimal coordination among all these elements is investigated assessing transformer hottest-spot temperature and loss-of-life, considering a case study with time-of-use rate and meteorological data from Texas, USA. In addition, an economic analysis is developed to evaluate the viability of the project, with a sensitivity study considering different charging fees and variation in the daily number of vehicles parked in the garage. The results show the proposed approach is feasible, yields tangible financial benefits and can preserve distribution transformer life.
ISSN:1949-3053
1949-3061
DOI:10.1109/TSG.2018.2866938