D13.4 - Design and Control of a High-Bandwidth Dual Active Bridge DC-DC Converter

Thursday, March 20, 2025

11:30 AM - 1:30 PM ET

Location: Level One, Hall A3

Technical Dialogue Presenter(s)

Alper Uzum (he/him/his)

University of Akron

Co-Author(s)

Syed Imam Hasan

University of Akron
Yilmaz Sozer, PhD

University of Akron
University of Akron
KL

Kenneth Loparo

Case Western Reserve University

For the stable operation of sensitive systems, high-bandwidth control is essential for power converters, where the current/voltage ripple serves as a quality measure of the synthesized waveform. Therefore, selecting an appropriate DC-link capacitor, which directly impacts system bandwidth, is crucial. This paper presents the relationship between input/output DC-link capacitance and its impact on system bandwidth. The proposed control and design strategy overcomes the constraints imposed on system bandwidth by the DC-link capacitor requirement to meet the desired ripple current, by introducing a harmonic trap filter. State-space modeling and state variable feedback control are employed on a 5 kW DAB converter to validate the proposed strategy.