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Comparative study of DC/DC electric vehicle charging system with conventional transformer and planar transformer

Rudawski Maciej, Fatyga Karol, Kwaśny Łukasz

Archives of Electrical Engineering

2023

Vol. 72, nr 2

339--355

This paper presents an analysis of electric vehicle charging station operation based on a dual active bridge topology. Two cases are considered: one with the use of a medium frequency planar transformer, the other with a conventional Litz winding transformer. An analysiswas performed using both solutions in order to compare the performance characteristics of the system for both cases and to present the differences between each transformer solution. The analysis was based on tests carried out on the full-scale model of an electric vehicle charging station, which is the result of the project "Electric vehicle charging system integrated with lighting infrastructure" realized by the Department of Drives and Electrical Machines, Lublin University of Technology. The results presented in the paper show that the conventional transformer used in the research achieved better results than the planar transformer. Based on the results obtained, the validity of using both solutions in electric vehicle charging stations was considered.

Numerical model of the 10 kVA transformer with copper windings

Woźniak Ł., Jaroszyński L., Surdacki P.

Maszyny Elektryczne : zeszyty problemowe

2017

Nr 3 (115)

77--81

The paper describes a circuit model of a single phase transformer implemented in PSpice program. The computer model was prepared on the basis of the geometrical and electrical parameters of the 10 kVA transformer with copper windings. Model takes into account Jiles-Atherton equations to simulate nonlinearity of the magnetic core. The no-load, nominal load and short-circuit characteristics generated during the numerical analysis were compared to the measurement results acquired on the physical model.