Journal ArticleDOI
Design and Analysis of a High-Efficiency DC–DC Converter With Soft Switching Capability for Renewable Energy Applications Requiring High Voltage Gain
Moumita Das,Vivek Agarwal +1 more
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TLDR
A novel high voltage gain, high-efficiency dc-dc converter based on coupled inductor, intermediate capacitor, and leakage energy recovery scheme, which enables the use of low voltage rating switch (with low “on-state” resistance), improving the overall efficiency of the system.Abstract:
Renewable sources like solar photovoltaic (PV) and fuel cell stack are preferred to be operated at low voltages. For applications such as grid-tied systems, this necessitates high voltage boosting resulting in efficiency reduction. To handle this issue, this paper proposes a novel high voltage gain, high-efficiency dc–dc converter based on coupled inductor, intermediate capacitor, and leakage energy recovery scheme. The input energy acquired from the source is first stored in the magnetic field of coupled inductor and intermediate capacitor in a lossless manner. In subsequent stages, it is passed on to the output section for load consumption. A passive clamp network around the primary inductor ensures the recovery of energy trapped in the leakage inductance, leading to drastic improvement in the voltage gain and efficiency of the system. Exorbitant duty cycle values are not required for high voltage gain, which prevents problems such as diode reverse recovery. Presence of a passive clamp network causes reduced voltage stress on the switch. This enables the use of low voltage rating switch (with low “ on -state” resistance), improving the overall efficiency of the system. Analytical details of the proposed converter and its hardware results are included.read more
Citations
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Journal ArticleDOI
High-Efficiency High Step-Up DC–DC Converter With Dual Coupled Inductors for Grid-Connected Photovoltaic Systems
TL;DR: In this paper, the authors proposed a non-isolated high step-up dc-dc converter with dual coupled inductors suitable for distributed generation applications, which inherits shared input current with low ripple, which also requires small capacitive filter at its input.
Journal ArticleDOI
A Single Switch Quadratic Boost High Step Up DC–DC Converter
TL;DR: A high step up converter consisting of an integrated quadratic-boost converter and a voltage doubler and the efficiency is 90% at the nominal operating point and the energy can be recycled to the load.
Journal ArticleDOI
ZVS–ZCS High Voltage Gain Integrated Boost Converter for DC Microgrid
Shelas Sathyan,Hiralal M. Suryawanshi,Bhim Singh,Chandan Chakraborty,Vishal Verma,Makarand S. Ballal +5 more
TL;DR: In the proposed converter, all the diodes of the quadrupler cell are turned off with zero-current switching (ZCS), which considerably reduces the high-frequency turn-off losses and reverse recovery losses of the dioes.
Journal ArticleDOI
High-Speed Maximum Power Point Tracking Module for PV Systems
TL;DR: The proposed high-speed MPPT controller outperforms both duty sweep and particle swarm optimization based MPPTs and is significantly better than other techniques in the literature.
Journal ArticleDOI
Factors influencing the efficiency of photovoltaic system
R. Venkateswari,S. Sreejith +1 more
TL;DR: An attempt is made in performing a detailed comprehensive review on the factors affecting the efficiency of solar cell, basic material used for solar cells, Maximum Power Point Tracking (MPPT) Techniques and the DC-DC converters used for power conversion.
References
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Journal ArticleDOI
Solar Cell Efficiency Tables (Version 39)
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
High-efficiency, high step-up DC-DC converters
Qun Zhao,Fred C. Lee +1 more
TL;DR: In this article, a family of high-efficiency, high step-up DC-DC converters with simple topologies is proposed, which use diodes and coupled windings instead of active switches to realize functions similar to those of active clamps.
Book
Pulse-width modulated DC-DC power converters
TL;DR: In this paper, the authors present a classification of power supplies in DC-DC Converters, including voltage, current, voltage, energy, and power, and discuss the relationship among them.
Journal ArticleDOI
Voltage Multiplier Cells Applied to Non-Isolated DC–DC Converters
TL;DR: In this article, the use of the voltage multiplier technique applied to the classical non-isolated dc-dc converters in order to obtain high step-up static gain, reduction of the maximum switch voltage, zero current switching turn-on was introduced.
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