Coupled‐inductor‐based high step‐up DC–DC converter

Ebrahimi, Reza; Kojabadi, Hossein Madadi; Chang, Liuchen; Blaabjerg, Frede

doi:10.1049/iet-pel.2018.6151

Cited by 21 publications

(22 citation statements)

References 25 publications

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“…It can be obtained that capacitors C o1 and C o2 have the same charging and discharging states. While current of the inductor, L is increasing linearly (when Q 1 and Q 2 are turned on), the primary-side current of (I Lk1 ) and secondary-FIGURE 4 The relationship between voltage gain, duty cycle, and coupling coefficient side current (I Lk2 ) of coupled inductor increases. It is important to mention that the magnetising current of inductor L m is increasing and decreasing linearly.…”

Section: Continuous Conduction Modementioning

confidence: 99%

Novel high voltage gain dc–dc converter with dynamic analysis

Ghaffarpour

Ebrahimi

Kojabadi

et al. 2021

IET Power Electronics

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This study proposes a non‐isolated dc–dc converter based on a coupled inductor and switch‐capacitor–boosting techniques. The goal of the proposed topology is to increase the voltage gain with low‐duty cycle, so voltage stresses are decreased across power switches and diodes. The power switches are controlled by pulse width modulation. The common ground of input and output of the proposed converter makes it suitable for many applications such as photovoltaic systems. The proposed converter topology is discussed in continuous and discontinuous operation modes. A dynamic analysis of the proposed converter is also provided. Simulation and experimental verifications are presented to prove the effectiveness of the proposed topology.

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Section: Continuous Conduction Modementioning

confidence: 99%

Novel high voltage gain dc–dc converter with dynamic analysis

Ghaffarpour

Ebrahimi

Kojabadi

et al. 2021

IET Power Electronics

Self Cite

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“…Furthermore, Afzal et al [11] and Ebrahimi et al [12] developed a boost converter with a coupled inductor for high step-up applications due to the simplicity of the structure. However, this topology results in low efficiency at low power levels due to the leakage in coupled inductors, leading to increased conduction loss in semiconductors and copper losses in inductors.…”

Section: Introductionmentioning

confidence: 99%

A New FL-MPPT High Voltage DC-DC Converter for PV Solar Application

Sutikno

Subrata

Jusoh

2022

DGAEJ

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To reduce the effects of global warming, there is an increasing need for renewable energy sources. Several studies have been carried out on photovoltaic (PV) systems to maximize their potential as an alternative electricity generator. However, various power converters for high voltage ratio applications have multiple drawbacks. This research was carried out to develop a power converter topology connected between the PV and the load for the need. In this research, the high step-up DC-DC converter for high-voltage gain conversion ratio and high efficiency is proposed. Furthermore, the fuzzy logic-based Maximum Power Point Tracking (MPPT) technique connected to the power converter was used to maximize the power converted from PV in changing atmospheric conditions. The MPPT control with fuzzy logic controller (FLC) was analysed and compared with the perturb and observe (P&O) algorithm. The results showed that the FLC algorithm could control the high step-up (HSU) DC-DC converter with an output voltage of 29% higher than the P&O algorithm.

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“…Using several techniques, such as coupled inductors, switched inductors, switched capacitors, voltage multiplier, voltage lift etc., many different converter topologies based on the conventional boost converter and qZSC have derived and implemented [11–28]. In switched‐inductor and coupled inductors techniques additional electromagnetic devices are used which are generally bulky and increase the weight, volume, and size of the converter.…”

Section: Introductionmentioning

confidence: 99%

Switched capacitor‐based continuous input current high step‐up impedance source DC–DC converter

Ahmad

Shiluveru

Singh

2020

IET power electron.

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The conventional converter needs to be operated at a high duty cycle to achieve maximum possible voltage gain. This leads to severe reverse recovery of switches, increases losses, and reduces efficiency. This study presents a modified switched‐capacitor‐based high gain continuous input current quasi‐Z‐source converter (qZSC) for DC microgrid applications. The proposed converter utilises the embedded switched‐capacitor techniques and can give a high voltage gain with a low duty ratio compared to the conventional converters. The proposed converter also experiences less capacitor voltage and inductor current stresses compared to the conventional Z‐source converters. This facilitates the use of lower‐rated capacitors and inductors for higher power applications. Detailed steady‐state, small‐signal, and power loss analysis of proposed qZSC is discussed in this study. A prototype of 100 W is designed and implemented using TI TMS320F28335 Experimenter Kit to verify the operation of the proposed converter.

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Coupled‐inductor‐based high step‐up DC–DC converter

Cited by 21 publications

References 25 publications

Novel high voltage gain dc–dc converter with dynamic analysis

Novel high voltage gain dc–dc converter with dynamic analysis

A New FL-MPPT High Voltage DC-DC Converter for PV Solar Application

Switched capacitor‐based continuous input current high step‐up impedance source DC–DC converter

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