Abstract
This study carries out the efficiency and power density evaluations of a bidirectional non-isolated dc-dc converter based on flying-capacitor converters using Pareto optimization method. The converter comprises a main converter with four power devices and an auxiliary converter, each of which is formed by cascaded chopper cells. A converter design procedure based on Pareto optimization method is proposed, followed by the discussions how the carrier frequencies of the main and auxiliary converters, and the chopper-cell count affect the efficiency and power density of the converter. Consequently, it is revealed that the maximum power density can be achieved when using four cells in the auxiliary converter. The validity and effectiveness of the design method presented in this paper are verified using a 200-V, 1-kW down-scaled model. Further, the efficiency and power density evaluations of an actual dc-dc converter system rated at 100 kW are carried out using numerical analysis based on the MATLAB software package.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
