2023
DOI: 10.36227/techrxiv.22227889.v1
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Optimal Synergetic Control of High-Efficiency Three-Phase/Level Boost-Buck Voltage DC-Link Very Wide Output Voltage Range EV Charger

Abstract: <p>Universal high-power three-phase mains interfaces for electric vehicle (EV) charging must provide a wide output voltage range (e.g., 200V to 800V) and thus provide buck and boost capability. An advantageous realization combining a three-level (3-L) T-type (Vienna) boost-type PFC voltage-source rectifier (VSR) with a 3-L buck-type DC/DC converter stage is presented in this paper. For high output voltages (boost-mode), the VSR-stage operates with 3/3-PWM, i.e., continuous PWM of all three phases to regu… Show more

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