Analytical modelling and power density optimisation of a single phase dual active bridge for aircraft application

• Published in: Journal of engineering (Stevenage, England) England), 2019-06, Vol.2019 (17), p.3671-3676
• Main Authors: Fritz, Niklas, Rashed, Mohamed, Bozhko, Serhiy, Cuomo, Fabrizio, Wheeler, Pat
• Format: Article
• Language: English
• Subjects: 3 kW high-frequency DAB; 3 kW high‐frequency DAB; aircraft application; aircraft DC power system; aircraft power systems; analytical models; bridge circuits; circuit design parameters; complex question; computational effort; DAB components; DC-DC power convertors; design algorithm; design procedure; dual active bridge converter; final design; leakage inductance; optimisation; optimised power density; power 3.0 kW; power 3.0 kW; power density optimisation; semiconductor technologies; single phase dual active bridge; targeting losses; The 9th International Conference on Power Electronics, Machines and Drives (PEMD 2018); weight minimisation
• ISSN: 2051-3305; 2051-3305
• DOI: 10.1049/joe.2018.8068

A design procedure for the dual active bridge (DAB) converter is presented, which aims to optimised power density and computational effort. When designing a DAB, the selection of circuit design parameters such as switching frequency, leakage inductance and semiconductor technologies is a complex question when targeting losses and weight minimisation of the final design. In this study, analytical models of the operating waveforms, the losses and the weight of all DAB components are developed. The proposed design algorithm is used for designing a 3 kW high-frequency DAB for an aircraft DC power system.