PEV Charging Optimization Considering a Dynamic Rating of Primary Distribution Transformers

This paper proposes a methodology for the coordination of Plug-in Electric Vehicle (PEV) battery charging,which allows limiting the Hot Spot Temperature (HST) of the Primary Distribution Transformer (PDT) to a constant value.For this, a dynamic rating of the PDT has been incorporated as a constraint...

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Bibliographic Details
Published in:IEEE transactions on power delivery 2023-12, Vol.38 (6), p.1-8
Main Authors: Sanchez, Angel M., Romero, Andres A.
Format: Article
Language:English
Subjects:
Accelerated aging
Battery chargers
Case studies
Charging
differential equations
Electric vehicles
Electrical plugs
Energy requirements
linear programming
Mathematical models
Methodology
Oil insulation
Oils
Optimization
power distribution
Power transformers
Temperature
Thermal analysis
Transformers
Vehicle dynamics
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Summary:This paper proposes a methodology for the coordination of Plug-in Electric Vehicle (PEV) battery charging,which allows limiting the Hot Spot Temperature (HST) of the Primary Distribution Transformer (PDT) to a constant value.For this, a dynamic rating of the PDT has been incorporated as a constraint in the formulation of the PEV coordinated charging optimization problem. The Susa thermal model has been adapted to calculate the PDT dynamic rating. In addition, the methodology is solved iteratively for different values of the HST up to its optimal limit, which allows minimizing the loss of daily life of the PDT, and the corresponding PEV charging profiles are obtained. Finally, the proposed methodology is applied to a case study, which consists of a system with 32 aggregators. In the results of the case study, it can be observed that the methodology effectively limits the HST during the daily operation of the system while the energy requirements of PEV are satisfied
ISSN:0885-8977
1937-4208
DOI:10.1109/TPWRD.2023.3292569