Ripple Current and Voltage Compensation of DAB Converter with Matching Transformer-less Series DC Active Filter in DC Distribution Feeder
Year: 2026
Type: article
Abstract: Although dual-active-bridge (DAB) converters are widely used in direct current (DC) distribution systems, their input and output currents contain large ripples. This ripple current affects the maximum power point tracking control of photovoltaic cells and degrades lithium-ion batteries. In this study, a matching transformer-less series DC active filter (DCAF) was designed to minimize the ripple current and voltage of a DAB converter. This filter was connected in series between the DC source and DAB converter to suppress the ripple current generated at twice the switching frequency of the DAB converter. The compensation performance of the proposed DCAF was experimentally validated using a laboratory-scale setup. The experimental results indicate that the proposed matching transformer-less series DCAF reduced the ripple current and voltage of the DAB converter by 71.8% and 70.7%, respectively.
Authors: Yuya Abe, Hiroaki Yamada
Institution: Yamaguchi University
Language: English
Topic: Advanced DC-DC Converters
Subfield: Electrical and Electronic Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: diamond
OpenAlex ID: W7160212602