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In this paper, a transformerless photovoltaic (PV) power conditioning system (PCS) based on the AC/DC boost inverter is proposed, which is capable of solving leakage currents and second-order power ripple issues. In this topology, the leakage current is reduced significantly since most of common-mode currents flow through the output capacitor instead of parasitic capacitors and grounding resistor...
In this paper, an AC/DC converter with a small DC-link capacitor for EV chargers is proposed, where a bridgeless PFC (power factor correction) boost rectifier and a full-bridge phase-shifted-modulated DC-DC converter are employed to transfer power from the grid to the electric vehicle. In order to solve the inherent problem of the second-order ripple power in a single-phase AC/DC converter, an auxiliary...
In this paper, a low-cost bridgeless power factor correction (PFC) boost rectifier with a small DC-link capacitor is proposed, where a buck-boost converter with a low power rating is added at the DC link. To solve an inherent problem of the second-order power ripple flowing from the source to the DC side in single-phase converter system, an auxiliary circuit is utilized to absorb the power ripple,...
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