Journal ArticleDOI
Cascade Cockcroft–Walton Voltage Multiplier Applied to Transformerless High Step-Up DC–DC Converter
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TLDR
In this paper, the proposed control strategy employs two independent frequencies, one of which operates at high frequency to minimize the size of the inductor while the other one operates at relatively low frequency according to the desired output voltage ripple.Abstract:
This paper proposes a high step-up dc-dc converter based on the Cockcroft-Walton (CW) voltage multiplier without a step-up transformer. Providing continuous input current with low ripple, high voltage ratio, and low voltage stress on the switches, diodes, and capacitors, the proposed converter is quite suitable for applying to low-input-level dc generation systems. Moreover, based on the n-stage CW voltage multiplier, the proposed converter can provide a suitable dc source for an n + 1-level multilevel inverter. In this paper, the proposed control strategy employs two independent frequencies, one of which operates at high frequency to minimize the size of the inductor while the other one operates at relatively low frequency according to the desired output voltage ripple. A 200-W laboratory prototype is built for test, and both simulation and experimental results demonstrate the validity of the proposed converter.read more
Citations
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Journal ArticleDOI
A Family of Y-Source DC/DC Converter Based on Switched Inductor
TL;DR: A novel family of high-gain dc/dc converters based on Y-source impedance network is proposed in this paper providing novel solutions to high voltage gain applications, such as photovoltaic and fuel cell systems.
Journal ArticleDOI
Single-inductor resonant switched capacitor voltage multiplier with safe commutation
Julio C. Rosas-Caro,Jonathan C. Mayo-Maldonado,Fernando Mancilla-David,Antonio Valderrabano-Gonzalez,Francisco Beltrán Carbajal +4 more
TL;DR: In this paper, the authors proposed a resonant switched capacitor voltage multiplier with a novel switching strategy, which provides a high voltage gain in comparison with other traditional approaches, this is achieved by charging every capacitor with the voltage of all previous charged capacitors.
Journal ArticleDOI
Investigation of a Non-isolated Reduced Redundant Power Processing DC/DC Converter for High-Power High Step-Up Applications
TL;DR: In this article, a nonisolated high step-up dc/dc converter, belonging to the family of reduced redundant power processing converters (R2P2), is investigated for high power applications.
Journal ArticleDOI
Non-isolated high gain DC-DC converter by quadratic boost converter and voltage multiplier cell
TL;DR: In this article, a novel non-isolated DC-DC converter is proposed by combining quadratic boost converter with voltage multiplier cell, which has low semiconductor device voltage stress and switch utilization factor.
Journal ArticleDOI
An extended high-voltage-gain DC–DC converter with reduced voltage stress on switches/diodes
TL;DR: In this paper, a new transformerless boost-based DC-DC converter is proposed, which employs a charge-pump circuit and n-stages of voltage multiplier cells (VMC).
References
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Journal ArticleDOI
Power electronics as efficient interface in dispersed power generation systems
TL;DR: In this article, power electronics, the technology of efficiently processing electric power, play an essential part in the integration of the dispersed generation units for good efficiency and high performance of the power systems.
Journal Article
Power Electronics as Efficient Interface in Dispersed Power Generation Systems
TL;DR: In this article, power electronics, the technology of efficiently processing electric power, play an essential part in the integration of the dispersed generation units for good efficiency and high performance of the power systems.
Journal ArticleDOI
Switched-Capacitor/Switched-Inductor Structures for Getting Transformerless Hybrid DC–DC PWM Converters
TL;DR: The superiority of the new, hybrid converters is mainly based on less energy in the magnetic field, leading to saving in the size and cost of the inductors, and less current stresses in the switching elements, lead to smaller conduction losses.
Journal ArticleDOI
Review of Nonisolated High-Step-Up DC/DC Converters in Photovoltaic Grid-Connected Applications
Wuhua Li,Xiangning He +1 more
TL;DR: A general conceptual circuit for high-step-up, low-cost, and high-efficiency dc/dc conversion is proposed to derive the next-generation topologies for the PV grid-connected power system.
Journal ArticleDOI
A Review of the Single Phase Photovoltaic Module Integrated Converter Topologies With Three Different DC Link Configurations
Quan Li,Peter Wolfs +1 more
TL;DR: In this paper, a topology study of the PV MICs in the power range below 500 W and covers most topologies recently proposed for MIC applications is presented, where the MIC topologies are classified into three different arrangements based on the dc link configurations.
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