Analysis and Design of a Novel High-Step-Up DC/DC Converter With Coupled Inductors

Chen, Yie‐Tone; Lu, Zong-Xing; Liang, Rung-Huei

doi:10.1109/tpel.2017.2668445

Cited by 95 publications

(57 citation statements)

References 34 publications

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“…The DC-DC converters can be classified into isolated, nonisolated, coupled inductor-based, or noncoupled inductor-based categories. [6][7][8] This paper investigates only the nonisolated noncoupled inductor-based topologies (NINCIBTs). A comprehensive review on voltage boosting techniques in high step-up converters can be found in Forouzesh et al 9 In Zhang et al 10 a modular structure based on improved switchedinductor multicell has been presented for high-gain converters, where the current of components has been reduced.…”

Section: Introductionmentioning

confidence: 99%

Novel high step‐up DC–DC converter with increased voltage gain per devices and continuous input current suitable for DC microgrid applications

Varesi

Hassanpour

Saeidabadi

2020

Circuit Theory & Apps

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Section: Introductionmentioning

confidence: 99%

Novel high step‐up DC–DC converter with increased voltage gain per devices and continuous input current suitable for DC microgrid applications

Varesi

Hassanpour

Saeidabadi

2020

Circuit Theory & Apps

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“…Moreover, the input current of Z-source converters is discontinuous, which is harmful to the life span of the power generation equipment. As another more universal solution, voltagemultiplier (VM) composed of coupled-inductors (CIs) and the diode-capacitor network is widely used in many converters [16,[18][19][20][21][22][23][24][25][26][27]. By substituting the filter inductor with VM designed on CI, the voltage on the filter inductor at different modes can be transferred to the capacitors of the VM, which can increase the output voltage significantly.…”

Section: Introductionmentioning

confidence: 99%

Novel non‐isolated high step‐up converter with fewer passive devices and low voltage stress of power switches

Yang

Zeng

et al. 2020

IET Power Electronics

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High step-up, high-efficiency and cost-effective dc-dc converters with high power density, as an interface to boost the low voltage of alternative sources to the utility voltage level, are an important part of renewable energy systems. In this study, a novel high step-up converter is proposed with a switched-capacitor. By introducing the switched-capacitor unit in the converter, the voltage of the switched-capacitor is coupled into the charging circuit of the input filter-inductor. Thus, the boost factor can be enlarged up to (1 − 2D) and the problem of the inrush current can be avoided due to the filter inductor. By replacing the filter inductor with the voltage multiplier unit, the boost coefficient of one coupled inductor voltage multiplier is increased to 2n and the voltage stress of the power switch is significantly reduced. Moreover, the energy of the leakage inductor is recycled by the switched-capacitor with the reduction of the voltage spike and the switches' stress. The working principle and the steady-state characteristics are analysed in detail in this study, and a comparison is made between the proposed converter and other high step-up converters. The experimental results based on a 200 W 20 to 200 V prototype verify the correctness and the feasibility.

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“…Converters with coupled inductors topology can accomplish high voltage gain [12][13][14][15][16][17]. However, using coupled inductors topology will reduce the efficiency due to the losses associated with the leakage inductors.…”

Section: Introductionmentioning

confidence: 99%

Three Topologies of a Non-Isolated High Gain Switched-Inductor Switched-Capacitor Step-Up Cuk Converter for Renewable Energy Applications

Almalaq

Matin

2018

Electronics

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This paper introduces three topologies of a non-isolated high gain step-up Cuk converter based on a switched-inductor (SL) and switched-capacitor (SC) techniques for renewable energy applications, such as photovoltaic and fuel cells. These kinds of Cuk converters provide a negative-to-positive step-up dc-dc voltage conversion. The proposed three topologies SLSC Cuk converters increase the voltage boost ability significantly using the switched-inductor and switched-capacitor techniques compared with the classical Cuk and boost converters. The proposed Cuk converters are derived from the classical Cuk converter by replacing the single inductor at the input and output sides with a SL and the transferring energy capacitor by a SC. The main advantages of the proposed SLSC Cuk converters are achieving a high voltage conversion ratio and reducing the voltage stress across the main switch. Therefore, a switch with low voltage rating and thus, of low R DS−ON can be used, and that leads to a higher efficiency. For example, the third topology have the ability to boost the input voltage up to 13 times when D = 0.75, D is the duty cycle. The voltage gain and the voltage stress across the main switch in the three topologies have been compared with the classical Cuk and boost converter. The proposed three topologies avoid using a transformer, coupled inductors, or extreme duty cycles leading to less volume, loss, and cost. The proposed SLSC Cuk converters are analyzed in continuous conduction mode (CCM), and they have been designed for 12 V input supply voltage, 100 W rated power, 50 kHz switching frequency, and 75% duty cycle. A detailed theoretical analysis of the CCM is represented and all the equations have been derived and matched with the results. The proposed three topologies SLSC Cuk converters have been simulated in MATLAB/SIMULINK and results are discussed.

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Analysis and Design of a Novel High-Step-Up DC/DC Converter With Coupled Inductors

Cited by 95 publications

References 34 publications

Novel high step‐up DC–DC converter with increased voltage gain per devices and continuous input current suitable for DC microgrid applications

Novel high step‐up DC–DC converter with increased voltage gain per devices and continuous input current suitable for DC microgrid applications

Novel non‐isolated high step‐up converter with fewer passive devices and low voltage stress of power switches

Three Topologies of a Non-Isolated High Gain Switched-Inductor Switched-Capacitor Step-Up Cuk Converter for Renewable Energy Applications

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