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

abstract

• 2010-2012 IEEE. 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.

authors

• Kezunovic, Mladen

published proceedings

• IEEE TRANSACTIONS ON SMART GRID

author list (cited authors)

• Affonso, C., & Kezunovic, M.

citation count

• 56

complete list of authors

• Affonso, Carolina de Mattos||Kezunovic, Mladen

publication date

• July 2019

publisher

• Institute of Electrical and Electronics Engineers (IEEE)  Publisher

published in

• IEEE Transactions on Smart Grid  Journal

keywords

• Battery Energy Storage System
• Economic Analysis
• Electric Vehicles
• Photovoltaic Generation
• Smart Charging
• Transformer Loss-of-life

Digital Object Identifier (DOI)

• 10.1109/TSG.2018.2866938

start page

• 4683

end page

• 4692

volume

• 10

issue

• 4

URL

• http://dx.doi.org/10.1109/tsg.2018.2866938

user-defined tag

• 7 Affordable and Clean Energy