Analysis and Verification of Leakage Inductance Calculation in DAB Converters Based on High-Frequency Toroidal Transformers under Different Design Scenarios

Haris Ataullah, Taosif Iqbal, Ihsan Ullah Khalil, Al-Sharef Mohammad, Nasim Ullah () and Mohamed Emad Farrag
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Haris Ataullah: Department of Electrical Engineering, NUST College of Electrical and Mechanical Engineering, National University of Sciences and Technology, Islamabad 44000, Pakistan
Taosif Iqbal: Department of Electrical Engineering, NUST College of Electrical and Mechanical Engineering, National University of Sciences and Technology, Islamabad 44000, Pakistan
Ihsan Ullah Khalil: Department of Electrical Engineering, NUST College of Electrical and Mechanical Engineering, National University of Sciences and Technology, Islamabad 44000, Pakistan
Al-Sharef Mohammad: Department of Electrical Engineering College of Engineering, TAIF University, Taif 11099, Saudi Arabia
Nasim Ullah: Department of Electrical Engineering College of Engineering, TAIF University, Taif 11099, Saudi Arabia
Mohamed Emad Farrag: School of Computing, Engineering and the Built Environment C011, Glasgow Caledonian University, 70 Cowcaddens Rd., Glasgow G4 0BA, UK

Energies, 2022, vol. 15, issue 17, 1-20

Abstract: High-frequency transformers are becoming an essential component in the integration of power resources that rely on power electronic converters; their efficiency and performance are influenced by parasitic characteristics in the interface. In this article, the design of a high-frequency toroidal transformer has been explained in detail using the ANSYS Maxwell platform. Various parameters, such as leakage inductance, magnetic flux density, magnetic field strength and uniform magnetic flux line are analyzed using Finite element analysis. High-frequency transformers using a toroidal core with different winding configurations are examined and all parameters obtained through simulation are validated by an analytical approach. Analysis of each design is based on its leakage inductances, which will aid in the appropriate selection of transformers as a function of their operating frequency. This analysis is expected to guide designers to optimize the high-frequency transformer parameters based on practical applications. The optimized parameters are then applied for a dual active bridge (DAB) converter within MATLAB/Simulink to verify the design process. A prototype has been built to validate the simulation and design procedure. The results obtained from both simulation and experiments are compared and show great correlation.

Keywords: toroidal transformer; finite element method (FEM); finite element analysis (FEA); ANSYS Maxwell; magnetic flux; leakage inductance; high frequency (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 complete reference list from CitEc
Citations: View citations in EconPapers (1)

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