Quadratic buck-boost converter with positive output-voltage and continuous input-current

Rosas-Caro, Julio C.; Sánchez, V.; Valdez-Reséndiz, Jesús E.; Mayo-Maldonado, Jonathan C.; Beltrán-Carbajal, Francisco; Valderrabano‐Gonzalez, Antonio

doi:10.1109/conielecomp.2018.8327191

Cited by 22 publications

(80 citation statements)

References 25 publications

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“…When the conventional interleave based boost or buck-boost converters are chosen for multi-level boost converters, it introduces a heavy spike in inductor current and the output voltage. The same can be observed from the experimental waveforms of the literature reported in Rosas-Caro et al (2018a) and Hegazy et al (2012).…”

Section: Introductionsupporting

confidence: 84%

“…The authors in Divakar et al (2008) reported soft switching techniques such as zero voltage switching and zero-current switching to decrease the switching losses in the traditional boost converter. The authors in Hegazy et al (2012) and Rosas-Caro et al (2018a) reported the converters with the interleaved structure to achieve the required output voltage with the continuous input current. However, the interleaved structure is complicated when compared to the conventional boost converter.…”

Section: Introductionmentioning

confidence: 99%

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Analysis and Implementation of High-Performance DC-DC Step-Up Converter for Multilevel Boost Structure

Premkumar¹,

Kumar²,

Sowmya

2019

Front. Energy Res.

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The conventional DC-DC converters such as SEPIC, boost converter, etc. produces large voltage ripples in multilevel converter systems. For that reason, in this paper, a new DC-DC converter topology is proposed, and the performance is analyzed. Since the proposed converter delivers high conversion efficiency, it can be selected for multilevel boost DC-DC converters. The adverse effects such as inductor resistance and inductor size of the conventional converters are overcome by the proposed converter. The output voltage ripples are reduced in the proposed converter, i.e., the spikes in the converter output voltage are almost zero. The theoretical analysis is presented in this paper, which speaks about the advantage of the proposed converter. The converter operation is analyzed and discussed in continuous conduction mode (CCM). The voltage gain of the proposed converter is higher than the conventional boost converter. To validate the performance of the proposed converter, an experimental prototype is fabricated and tested in the laboratory. The performance of the converter is compared with the conventional boost and SEPIC converter. The experimental result confirms the theoretical analysis. The proposed converter can be extended by connecting more number of voltage multiplier (VM) cells to get the desired multilevel output voltage.

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Section: Introductionsupporting

confidence: 84%

Section: Introductionmentioning

confidence: 99%

Analysis and Implementation of High-Performance DC-DC Step-Up Converter for Multilevel Boost Structure

Premkumar¹,

Kumar²,

Sowmya

2019

Front. Energy Res.

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show abstract

“…Therefore, the use of a Luo converter in the second stage of the cascaded boost converter, instead of a second boost converter, increased the voltage gain, and a higher voltage gain ratio became possible with a lower value of the duty cycle. Additionally, its voltage gain became higher than the converters of [9][10][11][12][13][14][15][16][17][18][19][20][21][22]. In comparison with the converters of [10,12,13].…”

Section: Introductionmentioning

confidence: 94%

“…In Figure 6, the non-ideal voltage gain of the suggested converters of [9][10][11][12][13][14][15][16][17][18][19][20][21][22] and the proposed converter are compared with each other. While the duty cycle varied from 0 to 68 percent, the voltage gain of the proposed converter had a greater value in comparison with the mentioned converters of [9][10][11][12][13][14][15][16][17][18][19][20][21][22]. While the duty cycle varied from 0 to 60 percent, the voltage gain of the proposed converter was 1.5-times more than the mentioned converter of [9].…”

Section: Non-ideal Voltage Gain Comparison Of the Proposed Topology With The Recently Proposed Convertersmentioning

confidence: 99%

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Design and Implementation a Single-Switch Step-Up DC-DC Converter Based on Cascaded Boost and Luo Converters

et al. 2021

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We designed and implemented a single-switch step-up DC-DC converter based on cascaded boost and Luo converters. The proposed converter demonstrated a quadratic voltage gain and a high efficiency, which makes it suitable for renewable energy applications, where a high voltage gain ratio is desired without imposing a high number of bulky items or employing a high duty cycle of the active switches. This converter benefits from the continuity of the input current waveform, which equips the maximum utilisation of renewable energy sources. While a transformer-less high voltage-gain was achieved, the voltage and current stresses of the power switch and diodes were kept low in comparison with the existing quadratic DC-DC converters. We analysed the converter in both continuous and discontinuous conduction modes. A non-ideal model of components was considered for power loss and efficiency calculations and comparisons. Finally, the simulation results were extracted with PLECS and validated with experiments on a 120 W prototype.

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An ultra high step‐up DC‐DC converter based on VMC, POSLLC, and boost converter

Mahdizadeh

Gholizadeh

Shahrivar

et al. 2022

IET Power Electronics

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In this article, an ultra‐high step‐up DC‐DC converter has been proposed. The topology of the converter is a combination of a cascaded boost converter, positive output super lift Luo converter (POS LLC), and a voltage multiplier cell (VMC). The lower values of the duty cycle provide a more than 10 times voltage gain. Consequently, the high voltage gain has been provided beside the lower value of the voltage/current stress of the semiconductor and an acceptable value of the efficiency. With a detailed look, it can be understood the voltage gain and efficiency of the converter have become 12 times and 90.5% based on the experimental results while the percentage of the duty cycle has become 50%. Moreover, by the mentioned percentage of the duty cycle, the normalized value of the voltage/current stress of the semiconductors has become lower than 50% by exception of only 3 semiconductor‐based components which have voltage/current stresses more than 50% and lower than the unity. In addition to all the mentioned advantages, the input current has remained continuous which solves the challenges of the input filter's capacitor. Moreover, the voltage/current stresses have been kept low‐valued. The ideal mode of the topology has been discussed for both continuous/discontinuous current modes. The non‐ideal mode of the topology and its related comparisons have been done. A comparison of the voltage/current stresses of the semiconductor‐based components has been done. Moreover, the comparison of the losses and efficiency have been done for the proposed converter and recently suggested topologies. In addition, the efficiency has been discussed for the different values of its effective factors and the resulted behavior has been expressed. Finally, the simulation and experimental outcomes have been extracted for a 120 W output power and compared with the theoretical relations' results.

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Quadratic buck-boost converter with positive output-voltage and continuous input-current

Cited by 22 publications

References 25 publications

Analysis and Implementation of High-Performance DC-DC Step-Up Converter for Multilevel Boost Structure

Analysis and Implementation of High-Performance DC-DC Step-Up Converter for Multilevel Boost Structure

Design and Implementation a Single-Switch Step-Up DC-DC Converter Based on Cascaded Boost and Luo Converters

An ultra high step‐up DC‐DC converter based on VMC, POSLLC, and boost converter

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