Ac–dc Serial-interleaved Boost Converter Applied In A Single-stage Pfc

Abstract

This paper presents single-stage power factor corrected (PFC) AC-DC converters based on a modified serial-interleaved boost converter. The topologies are a composition of a modified interleaved boost converter with a DC-DC converter. The interleaving allows each boost converter to operate in discontinuous conduction mode (DCM) while still having continuous conduction mode (CCM) input current. High power factor and reduced current ripple are obtained, meeting IEC 61000-3-2 regulations for wide load range. The converters also operate with zero voltage switching (ZVS) resulting in high efficiency. The steady-state analysis of the converter is performed along with the description of the converter operation stages. Finally, a simplified design procedure is proposed, from where a prototype is designed and built. Finally experimental results from a laboratory prototype are presented.

Single-phase Grid-connected Photovoltaic System With Active Power Line Conditioning

“…On the other hand, the implementation of PV systems with filtering capabilities has been justified because the current Manuscript received 08/04/2014; revised 03/07/2014; accepted for publication 14/03/2015, by recommendation of the Regular Section Editor Cassiano Rech and/or voltage harmonic distortions have risen significantly in the power supply systems [10]- [15]. This problem has happened due to the increasing use of nonlinear loads, such as switching power supplies, inverters, rectifiers, among others, which are normally used in industrial, commercial and residential applications.…”