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Open AccessArticle

A New Three-Level Flying-Capacitor Boost Converter with an Integrated LC2D Output Network for Fuel-Cell Vehicles: Analysis and Design

Energy Systems Research Laboratory, Department of Electrical & Computer Engineering, Florida International University, Miami, FL 33174, USA
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Inventions 2018, 3(3), 61; https://doi.org/10.3390/inventions3030061
Received: 21 July 2018 / Revised: 20 August 2018 / Accepted: 22 August 2018 / Published: 28 August 2018
In this paper, a new three-level boost converter with continuous input current, common ground, reduced voltage stress on the power switches, and wide voltage gain range is proposed. The proposed converter is composed of a three-level flying-capacitor switching cell and an integrated LC2D output network. The LC2D output network enhances the voltage gain of the converter and reduces the voltage stress on the power switches. The proposed converter is a good candidate to interface fuel cells to the dc-link bus of the three-phase inverter of an electric vehicle (EV). A full steady-state analysis of the proposed converter in the continuous conduction mode (CCM) is given in this paper. A 1.2 kW scaled-down laboratory setup was built using gallium nitride (GaN) transistors and silicon carbide (SiC) diodes to verify the feasibility of the proposed converter. View Full-Text
Keywords: boost converter; multilevel; wide-bandgap; GaN; SiC; canonical switching cell; flying capacitor; renewable energy; fuel cells; electric vehicles boost converter; multilevel; wide-bandgap; GaN; SiC; canonical switching cell; flying capacitor; renewable energy; fuel cells; electric vehicles
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Elsayad, N.; Moradisizkoohi, H.; Mohammed, O. A New Three-Level Flying-Capacitor Boost Converter with an Integrated LC2D Output Network for Fuel-Cell Vehicles: Analysis and Design. Inventions 2018, 3, 61.

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