A Single-Switch Converter With High Step-Up Gain and Low Diode Voltage Stress Suitable for Green Power-Source Conversion

Tseng, Kuo‐Ching; Huang, Chuan-Kuei; Cheng, Chun‐An

doi:10.1109/jestpe.2015.2462735

Cited by 52 publications

(43 citation statements)

References 26 publications

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“…The inductor currents of dc-dc power converter circuit in Figure 7 can be obtained as (15) In eqn. (15), vQ1 and vQ2 are voltages across power transistors Q1 and Q2, respectively.…”

Section: A Analysis Of Current Ripplementioning

confidence: 99%

“…The inductor currents of dc-dc power converter circuit in Figure 7 can be obtained as (15) In eqn. (15), vQ1 and vQ2 are voltages across power transistors Q1 and Q2, respectively. The coupled inductor has a mutual inductance of M and Δ=L 2 -M. The currents and voltages can be separated into the average and ripple components, that is,…”

Section: A Analysis Of Current Ripplementioning

confidence: 99%

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Derivation of High Voltage-Gain Step-Up DC-DC Power Converters

Dahono¹

2019

IJEEI

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This paper presents a new method to derive high voltage-gain step-up dc-dc power converters is presented in this paper. Four step-up dc-dc power converters are derived by a unique parallel-series combination of basic dc-dc power converters. The obtained high voltagegain power converters have better efficiency than the ones that can be obtained obtained by using a conventional dc-dc boost power converter. Interleaving the combined converters can be used to further reduce the input current and output voltage ripples. Simulation and measurement results are included to show the validity of the proposed concept of high voltage-gain step-up dc-dc power converters.

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“…The inductor currents of dc-dc power converter circuit in Figure 7 can be obtained as (15) In eqn. (15), vQ1 and vQ2 are voltages across power transistors Q1 and Q2, respectively.…”

Section: A Analysis Of Current Ripplementioning

confidence: 99%

Section: A Analysis Of Current Ripplementioning

confidence: 99%

Derivation of High Voltage-Gain Step-Up DC-DC Power Converters

Dahono¹

2019

IJEEI

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show abstract

“…Another method of increasing the voltage gain is to introduce a coupled inductor [22][23][24][25][26][27][28]. However, the current through the coupled inductor is discontinuous.…”

Section: Introductionmentioning

confidence: 99%

Non-isolated high step-up DC–DC converter adopting auxiliary capacitor and coupled inductor

Ruan

2017

J. Mod. Power Syst. Clean Energy

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For grid-connected power system based on photovoltaic (PV) source and fuel cells, high step-up and high-efficiency DC-DC converters are needed, due to the bus voltage of the grid-connected inverter is much higher than the output voltage of PV and fuel cells. In this paper, a novel high step-up converter is proposed. An auxiliary capacitor is introduced into the boost converter, which serves as a voltage source. It is in series with the input voltage source with the same voltage polarities. Thus, the input voltage is increased equivalently and the voltage gain is increased accordingly. To reduce the voltage stresses of the switch and the diode, multiple output capacitors are introduced. The voltage of each output capacitor is degraded leading to the reduced voltage stress. To replenish energy for the multiple output capacitors, a coupled inductor is adopted. Based on this, high step-up converter adopting auxiliary capacitor and coupled inductor is derived. The operating principles and voltage gain of the proposed converters are analyzed in this paper. In the end, experiment results are given to verify the theoretical analysis.

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“…With the development of power electronics, solid state converters have been widely used in several renewable energy applications [1][2][3][4][5][6]. Different applications require different converter topologies, which can be divided into isolated and non-isolated converters.…”

Section: Introductionmentioning

confidence: 99%

A Multifunctional Isolated and Non-Isolated Dual Mode Converter for Renewable Energy Conversion Applications

Wang

Gan

et al. 2017

Energies

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Abstract:In this paper, a multifunctional isolated and non-isolated dual-mode low-power converter was designed for renewable energy conversion applications such as photovoltaic power generation to achieve different operating modes under bi-directional electrical conversion. The proposed topology consists of a bidirectional non-isolated DC/DC circuit and an isolated converter with a high-frequency transformer, which merge the advantages of both the conventional isolated converter and non-isolated converter with the combination of the two converter technologies. Compared with traditional converters, the multifunctional converter can not only realize conventional bi-directional functions, but can also be applied for many different operation modes and meet the high output/input ratio demands with the two converter circuits operating together. A novel control algorithm was proposed to achieve the various functions of the proposed converter. An experimental platform based on the proposed circuit was established. Both the simulation and experimental results indicated that the proposed converter could provide isolated and non-isolated modes in different applications, which could meet different practical engineering requirements.

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A Single-Switch Converter With High Step-Up Gain and Low Diode Voltage Stress Suitable for Green Power-Source Conversion

Cited by 52 publications

References 26 publications

Derivation of High Voltage-Gain Step-Up DC-DC Power Converters

Derivation of High Voltage-Gain Step-Up DC-DC Power Converters

Non-isolated high step-up DC–DC converter adopting auxiliary capacitor and coupled inductor

A Multifunctional Isolated and Non-Isolated Dual Mode Converter for Renewable Energy Conversion Applications

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