A Quadratic Quasi-Z-Source Full-Bridge Isolated DC–DC Converter With High Reliability for Wide Input Applications

Oluwasogo, Emmanuel Seun; Cha, Honnyong

doi:10.1109/tie.2022.3159955

Cited by 20 publications

(8 citation statements)

References 28 publications

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“…3. The average (DC value) and current ripple of the inductors are presented in (5) to (8). By considering these relations and substituting into (9), we have the following relation while 𝑉 𝑜 is constant.…”

Section: A Principle Of Operationmentioning

confidence: 99%

“…In this regard, various structures of impedance source converters have been proposed by authors. The structures can be classified in three distinct categories, as proposed in [1]: using magnetically coupled inductors/transformers [2][3][4][5], improving and expanding the impedance network [6][7][8][9][10][11][12][13][14][15][16][17][18], and using extra active switches in the impedance network [19]. All these structures aim to achieve some of the following benefits: higher voltage gain, less inrush current, less stress on devices, higher efficiency and higher power density.…”

Section: Introductionmentioning

confidence: 99%

“…Using coupled inductors, which leads to some particular structures like A-source, 𝛤-source, 𝛥-source, Ysource converters, is a fine method for increasing the voltage gain [2][3][4]. Another appropriate method that provides high voltage gain is utilizing the isolated high step-up DC-DC converters [5]. However, the energy stored in the leakage inductance of their transformers results in electromagnetic interference problems, high voltage stress and high switching losses.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Symmetric Wide-Input-Voltage Range Boost Z-Source DC–DC Converter With Reduced Current of Source and Active Components

Abbasi

Mardaneh

Rajaei

et al. 2023

IEEE Trans. Power Electron.

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This study proposes a new enhanced boost DC/DC converter with high voltage boost ability. The proposed converter takes advantage of a continuous source current with negligible ripple, and the start-up inrush current is limited as well. Compared with the traditional extended switched boost DC-DC converter, this converter generates higher output voltage while the numbers of components in the Z-source network of both converters are the same. Moreover, the peak values of the currents provided by the input source and crossing the active-devices are reduced. In addition, the ripples of the previously mentioned currents are noticeably decreased in this topology; thus, the losses are reduced. In this research, the operation principles in continuous conduction mode and discontinuous conduction mode, the voltage gain, and the parameters design of the proposed converter are analyzed. Finally, by presenting the simulation and experimental results, the performance of the proposed converter is assessed.

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Section: A Principle Of Operationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Symmetric Wide-Input-Voltage Range Boost Z-Source DC–DC Converter With Reduced Current of Source and Active Components

Abbasi

Mardaneh

Rajaei

et al. 2023

IEEE Trans. Power Electron.

View full text Add to dashboard Cite

show abstract

“…Unfortunately, in this paper, the reconfigured converter's voltage gain and the duty cycle have not been analysed. In [23], two configurations of the quadratic quasi-z-source (QZS) DC-DC converters are presented in that their reliability is more than magnetically integrated synchronous quasi-z-source (MIS-QZS) and LLC converter structures.…”

Section: Introductionmentioning

confidence: 99%

Comprehensive reliability evaluation of three types of connection of DC–DC converters: single‐phase, two‐phase, and parallel input‐series output

Mahmoudi

Ajami

Babaei

2023

IET Power Electronics

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With the increasing use of power electronic converters, the reliability studies of these converters are essential. The most important factor in increasing the reliability of power converters is their structures. In this paper the reliability evaluation of a DC–DC converter with various connections including single‐phase, interleaved, and parallel‐input and series‐output (PISO) topologies is presented. In the first view, it seems that the interleave topology has high reliability, but considering the more presented detailed indexes, it is identified that the PISO structure has a higher reliability than the interleave structure. In this paper for better evaluation, the various topologies are considered which operate at full rated power and half power. To calculate the reliability of the converters the important parameters such as the thermal and electrical stresses of elements are considered. The Markov model is used to evaluate the reliability. In order to verify the presented studies and analysis, the DC–DC converters with single‐phase, interleaved, and PISO have been implemented. The experimental results show that the PISO topology has higher reliability.

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“…Nowadays, hybrid systems are more popular in meeting the challenges of the intermittent nature of solar PV systems. Multi-input systems have been developed recently to integrate more than one renewable energy source together, and they are found to have a better power electronic interface and bidirectional fow of power [14]. Integration of wind and solar PV systems together has a much greater efciency in the case of grid-connected systems as well [15].…”

Section: Introductionmentioning

confidence: 99%

Dual Input Single Phase Quasi Z Source Inverter for Integrated Photovoltaic Systems

Rampradesh¹,

Rajan

Fante

2022

Advances in Materials Science and Engineering

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Globally, climate change has increased various environmental concerns, and there is a very high and still ever greater penetration of renewable energy power into energy grids. The intermittent nature of these energy sources has demanded a strong power electronic interface to maintain an uninterrupted power flow to the external load. This paper deals with a novel dual input quasi Z source inverter (qZSI) that can operate with two intermittent sources and perform a single stage power conversion. The novelty of the proposed methodology is the implementation of qZSI with a reduced number of switches, increased voltage gain, and a high boosting factor which results in increased efficiency. A simple boost control-based pulse width modulation (PWM) technique has been adopted, which has been observed after analysis, to have reduced the stress on the switches and simultaneously increased system efficiency. Perturb and observe method-based maximum power point tracking (MPPT) was integrated into the study with the control technique, and its performance was observed using MATLAB/Simulink and further validated with a scale down model.

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A Quadratic Quasi-Z-Source Full-Bridge Isolated DC–DC Converter With High Reliability for Wide Input Applications

Cited by 20 publications

References 28 publications

Symmetric Wide-Input-Voltage Range Boost Z-Source DC–DC Converter With Reduced Current of Source and Active Components

Symmetric Wide-Input-Voltage Range Boost Z-Source DC–DC Converter With Reduced Current of Source and Active Components

Comprehensive reliability evaluation of three types of connection of DC–DC converters: single‐phase, two‐phase, and parallel input‐series output

Dual Input Single Phase Quasi Z Source Inverter for Integrated Photovoltaic Systems

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