Novel PEV Charging Approaches for Extending Transformer Life

Theron Smith, Joseph Garcia and Gregory Washington
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Theron Smith: Department of Mechanical and Aerospace Engineering, University of California, Irvine, CA 92697-3550, USA
Joseph Garcia: Department of Mechanical and Aerospace Engineering, University of California, Irvine, CA 92697-3550, USA
Gregory Washington: George Mason University, Fairfax, VA 22030, USA

Energies, 2022, vol. 15, issue 12, 1-17

Abstract: The study investigates how variable rate charging can affect PEV charging and identifies how this capability can be integrated into residential neighborhoods. The results show that creating PEV chargers that can deliver variable rates will enhance uncontrolled and controlled PEV charging. The integration is summarized into 4 phases. In phase 1, uncontrolled PEV chargers should be enabled to provide any rate to vehicles within 0 to 11.5 kW, which can reduce overloading by up to 28.34%. Phase 2 introduces smart chargers that use forecasted data to determine the optimal time intervals for PEVs to charge using a fixed rate of 4.8 kW, capable of reducing overloading by 42.69%. In Phase 3, a controlled smart charging strategy that can deliver any rate to a vehicle using SRVF’s approach is proposed, which will reduce overloading by up to 42.87%. Lastly, phase 4 recommends a smart charging control that can deliver any rate to a vehicle using RIVF’s approach, reducing overloading by up to 43.37%.

Keywords: energy usage; plug-in electric vehicle; valley filling; distribution transformer; electric vehicle charging; smart charging (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2022
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (5)

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