Analysis and Investigation of Hybrid DC–DC Non-Isolated and Non-Inverting Nx Interleaved Multilevel Boost Converter (Nx-IMBC) for High Voltage Step-Up Applications: Hardware Implementation

Bhaskar, Mahajan Sagar; Almakhles, Dhafer; Padmanaban, Sanjeevikumar; Blaabjerg, Frede; Subramaniam, Umashankar; Ionel, Dan M.

doi:10.1109/access.2020.2992447

Cited by 48 publications

(17 citation statements)

References 43 publications

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“…Based on the aforementioned approaches, numerous derived topologies have been reported in the literature so far, but not all of them are feasible for practical applications. Not only the voltage conversion ratio is important, but other factors should also be taken into account in the conception of novel topologies, which include component count, stresses on the power stage components, complexity, implementation cost, and efficiency 5,6 …”

Section: Introductionmentioning

confidence: 99%

Non‐isolated high step‐up DC–DC converter based on coupled inductors, diode‐capacitor networks, and voltage multiplier cells

Freitas

Araújo

Aragão

et al. 2021

Circuit Theory & Apps

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This work presents a non‐isolated DC–DC boost converter employing coupled inductors, a diode‐capacitor network, and a voltage multiplier cell (VMC). This converter allows extending the conversion ratio not only by increasing the turns ratio of the coupled inductor, but also by adding more networks and VMCs, resulting in a more flexible design approach. Unlike most coupled‐inductor‐based boost‐type converters reported in the literature, the topology presents an output stage whose current is non‐pulsating, which leads to reduced electromagnetic interference (EMI) levels. Other prominent advantages include the fact that the input current is non‐pulsating with low high‐frequency ripple, as well as the operation of the switch and output diode under soft‐switching condition. Experimental results obtained from a 200‐W prototype are presented and discussed to validate the theoretical assumptions, also showing that the converter has high efficiency over a wide load range.

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Section: Introductionmentioning

confidence: 99%

Non‐isolated high step‐up DC–DC converter based on coupled inductors, diode‐capacitor networks, and voltage multiplier cells

Freitas

Araújo

Aragão

et al. 2021

Circuit Theory & Apps

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“…The suggested converter in Alharbi et al 27 utilizes three conventional interleaved boost converters in a cascaded configuration to improve the voltage gain, which significantly reduces the efficiency with high circulating current. In previous studies, [28][29][30] three interleaved high step-up converters with bulky VMCs are presented which suffer from high inrush current loss.…”

Section: Introductionmentioning

confidence: 99%

Operation and design analysis of an interleaved high step‐up DC–DC converter with improved harnessing of magnetic energy

Sabahi

Tarzamni

Kolahian

2021

Circuit Theory & Apps

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In this paper, a new interleaved DC-DC converter based on a coupled and a single input inductor is proposed. The suggested high step-up converter utilizes various inductive and capacitive methods to transfer magnetic energy more efficiently. The output voltage is regulated with the switches' duty cycle and the coupled inductor (CI) turns ratio, which provide a wide output voltage range. Interleaving improves the converter reliability, employs both the first and third areas of CI's B-H plane, cancels DC component of the CI, and reduces the input current ripple of the proposed converter with twice switching frequency. Utilization of two output ports for voltage stress and ripple reduction in each port, recycling the stored energy of inductances in both forward and flyback mechanisms, alleviation of switch voltage spikes, operation without circulating current, high power density, independency of switch voltage stress to the CI turns ratio, and continuous input current can be mentioned as other features. In this paper, continuous and discontinuous conduction modes' steady-state analytics, power loss calculations, and design procedure of the proposed converter are followed with comprehensive comparisons to evaluate the capabilities. Eventually, experimental results are presented to validate theoretical calculations.

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“…Several new topologies have been proposed in recent years that are intended to cope with this challenge of obtaining high DC voltage gain, while keeping the overall design economical [1]. Nowadays, renewable energy sources are becoming an important subject of research in the field of electrical engineering [2]. It has been estimated that in the near future, the requirement for renewable energy will increase threefold, hence the need for increasingly improved topologies of DC-DC boost converters has become the focus of researchers.…”

Section: Introductionmentioning

confidence: 99%

Design and Analysis of a Novel High-Gain DC-DC Boost Converter with Low Component Count

et al. 2021

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In this paper, a novel high-gain DC-DC boost converter with reduced component count is proposed. The converter that is proposed in this paper provides high DC voltage gain, while keeping the overall component count significantly lower in comparison to some similar high voltage gain DC-DC converters presented recently. The proposed converter uses only one power switch, two inductors, two capacitors, and three didoes to achieve high-voltage gain, without a significant compromise on the efficiency. In addition, the proposed design uses small passive component sizes compared to other similar designs of the same power rating. Due to the reduced component count, and hence the small physical size, the proposed converter will find applications in several practical domains, ranging from industrial control embedded systems to the DC transmission bus bars in fully electrical vehicles and renewable energy distribution grids. A 250 Watts prototype of this newly proposed DC-DC boost converter was implemented and simulated using the PSIM simulation tool. The promising simulation results proved the reliable performance of the proposed DC-DC boost converter design.

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Analysis and Investigation of Hybrid DC–DC Non-Isolated and Non-Inverting Nx Interleaved Multilevel Boost Converter (Nx-IMBC) for High Voltage Step-Up Applications: Hardware Implementation

Cited by 48 publications

References 43 publications

Non‐isolated high step‐up DC–DC converter based on coupled inductors, diode‐capacitor networks, and voltage multiplier cells

Non‐isolated high step‐up DC–DC converter based on coupled inductors, diode‐capacitor networks, and voltage multiplier cells

Operation and design analysis of an interleaved high step‐up DC–DC converter with improved harnessing of magnetic energy

Design and Analysis of a Novel High-Gain DC-DC Boost Converter with Low Component Count

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