Two-Tier Converter: A New Structure of High Gain DC-DC Converter with Reduced Voltage Stress

Gupta, Nikita; Bhaskar, Mahajan Sagar; Almakhles, Dhafer; Sanjeevikumar, P.; Blaabjerg, Frede; Leonowicz, Zbigniew

doi:10.1109/eeeic/icpseurope49358.2020.9160526

Cited by 13 publications

(31 citation statements)

References 20 publications

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“…The conduction loss of the switch in this converter is lower than [18], [22], [38], and compared with the rest of them, has a higher switch conduction loss. In all the topologies of [15]‐ [40] by exception [17, 26, 27 29–33, 35 37] the frequency loss of switch has a higher a value in comparison with the proposed design. In addition, the conduction loss of the diodes of the suggested topology has the highest one in comparison with others.…”

Section: Efficiency and Loss Comparison Of The Proposed Topology And ...mentioning

confidence: 99%

“…In [15–30], such topologies with two switches and diodes have been introduced. According to the format of the voltage gain, mentioned topologies of [15–30] can be divided into four groups. The topologies of [15–21] belong to the first group.…”

Section: Introductionmentioning

confidence: 99%

“…The quadratic converters are another type of high gain topology. In [15][16][17][18][19][20][21][22][23][24][25][26][27][28][29][30], such topologies with two switches and diodes have been introduced. According to the format of the voltage gain, mentioned topologies of [15][16][17][18][19][20][21][22][23][24][25][26][27][28][29][30] can be divided into four groups.…”

Section: Introductionmentioning

confidence: 99%

“…In [15][16][17][18][19][20][21][22][23][24][25][26][27][28][29][30], such topologies with two switches and diodes have been introduced. According to the format of the voltage gain, mentioned topologies of [15][16][17][18][19][20][21][22][23][24][25][26][27][28][29][30] can be divided into four groups. The topologies of [15][16][17][18][19][20][21] belong to the first group.…”

Section: Introductionmentioning

confidence: 99%

“…The mentioned ones in [26] and [27] belong to the third group of the quadratic converters which have a voltage gain of 3 by a 50% duty cycle. The mentioned topology of [28][29][30] belongs to the fourth group of quadratic converters. The voltage gain of these converters is the same as the cascaded boost converter.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

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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Section: Efficiency and Loss Comparison Of The Proposed Topology And ...mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

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

Mahdizadeh

Gholizadeh

Shahrivar

et al. 2022

IET Power Electronics

View full text Add to dashboard Cite

show abstract

A Power Converter Based on the Combination of Cuk and Positive Output Super Lift Lou Converters: Circuit Analysis, Simulation and Experimental Validation

2022

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A Quadratic Buck-Boost Converter With Continuous Input and Output Currents

2023

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This study proposes a novel DC-DC converter topology that features a quadratic buck-boost voltage gain ratio. The quadratic gain of the converter enables it to achieve superior step-down or step-up capability when the duty cycle is higher or lower than 50 percent, as compared to conventional buck-boost converters. While there exist other quadratic buck-boost converters in the literature, the proposed converter offers unique features such as continuity of input and output currents, which reduces the current stress on the input and filter capacitors, making it a suitable option for renewable energy applications. Additionally, unlike its counterparts that have two high-side switches, the proposed converter features only one high-side and one low-side switch, allowing for a simpler gate-driver design. The proposed topology shares a common ground between the load and the source, and has the lowest stored energy with the same performance, indicating a compact size. Steady-state analysis has been conducted in both continuous and discontinuous conduction modes, and the controller design was studied with the aid of small-signal modelling. Simulation and experimental results from a 100 W prototype were used to validate claims and analyses.INDEX TERMS dc-dc converter, low normalized semiconductor stress, quadratic buck-boost converter.

show abstract

Two-Tier Converter: A New Structure of High Gain DC-DC Converter with Reduced Voltage Stress

Cited by 13 publications

References 20 publications

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

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

A Power Converter Based on the Combination of Cuk and Positive Output Super Lift Lou Converters: Circuit Analysis, Simulation and Experimental Validation

A Quadratic Buck-Boost Converter With Continuous Input and Output Currents

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