Journal ArticleDOI
Unity-Power-Factor Operation of Three-Phase AC–DC Soft Switched Converter Based On Boost Active Clamp Topology in Modular Approach
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TLDR
In this paper, a three-phase ac-dc converter using three single-phase pulse width modulated active clamped, zero-voltage-switched boost converter in modular approach is presented.Abstract:
In this paper, a three-phase ac-dc converter using three single-phase pulse width modulated active clamped, zero-voltage-switched boost converter in modular approach is presented. The active clamp technique is used for zero-voltage-switching of the main and auxiliary switches. The operating modes, analysis, and design considerations for the proposed converter are explained. To evaluate the performance of the proposed converter, finally simulation and experimental results for a 500-V, 1.5-kW prototype converter are presented. The proposed converter operates at almost unity power factor with reduced output filter size. The output voltage is regulated without affecting zero-voltage-switching, even under unbalanced three-phase input voltages.read more
Citations
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Journal ArticleDOI
Interleaved Soft-Switching Boost Converter for Photovoltaic Power-Generation System
TL;DR: In this article, the authors proposed an interleaved soft switching boost converter (ISSBC) for a photovoltaic (PV) power-generation system, and the feasibility of the proposed topology is experimentally verified for a 1.2-kW prototype.
Journal ArticleDOI
A Modified SEPIC Converter for High-Power-Factor Rectifier and Universal Input Voltage Applications
TL;DR: In this article, a high power-factor rectifier suitable for universal line base on a modified version of the single-ended primary inductance converter (SEPIC) is presented, where voltage multiplier technique is applied to the classical SEPIC circuit, obtaining new operation characteristics as low-switchvoltage operation and high static gain at low line voltage.
Journal ArticleDOI
A Nonisolated Bidirectional ZVS-PWM Active Clamped DC–DC Converter
TL;DR: In this article, a soft-switched bidirectional dc-dc converter is proposed to operate with soft switching, a continuous inductor current, fixed switching frequency, and the switch stresses of a conventional pulsewidth modulation converter regardless of the direction of power flow.
Journal ArticleDOI
A Three-Phase High-Frequency Semicontrolled Rectifier for PM WECS
Demercil S. Oliveira,M.M. Reis,Carlos Elmano de Alencar e Silva,L. Colado Barreto,Fernando L. M. Antunes,B.L. Soares +5 more
TL;DR: In this article, a three-phase high-frequency semicontrolled rectifier for wind energy conversion systems based on permanent magnet generators is proposed, where all active switches are connected to a common point, robustness, and high efficiency due to reduced number of elements.
Journal ArticleDOI
Analysis and Design of a Zero-Voltage-Switching and Zero-Current-Switching Interleaved Boost Converter
TL;DR: A novel interleaved boost converter with zero-voltage switching (ZVS) and zero-current switching ( ZCS) characteristics is proposed in this paper and by establishing the common soft-switching module, the soft- Switching interleaves converter can greatly reduce the size and cost.
References
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TL;DR: In this paper, the half-bridge series-resonant, parallel-reonant and combination series-parallel resonant converters are compared for low-output-voltage power supply applications.
Journal ArticleDOI
A review of single-phase improved power quality AC-DC converters
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A comparison of half-bridge resonant converter topologies
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Utilization of an active-clamp circuit to achieve soft switching in flyback converters
R. Watson,Fred C. Lee,G.C. Hua +2 more
TL;DR: In this paper, the behavior of the ZVS active-clamp flyback operating with unidirectional magnetizing current is analyzed and design equations based on this analysis are presented.
Journal ArticleDOI
State-of-the-art, single-phase, active power-factor-correction techniques for high-power applications - an overview
Milan M. Jovanovic,Yungtaek Jang +1 more
TL;DR: The merits and limitations of several PFC techniques used in today's network-server and telecom power supplies to maximize their conversion efficiencies are discussed, and the effect of recent advancements in semiconductor technology on the performance and design considerations of PFC converters is discussed.
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