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

Gholizadeh, Hossein; Shahrivar, Reza Sharifi; Hashemi, Mir Reza; Afjei, E.; Gorji, Saman A.

doi:10.3390/en14123584

Cited by 17 publications

(13 citation statements)

References 22 publications

(137 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This concept refers to the zero average currents of the capacitors over a duty cycle. Therefore, the current relation of capacitors in equation ( 1) becomes zero, and as a result, the average current of the inductors can be expressed using equation (3).…”

Section: Charge-second Balancementioning

confidence: 99%

“…R ENEWABLE energy resources, such as photovoltaic panels, require external equipment in the form of DC-DC power converters to regulate their voltage and bring it to a suitable level for connection to a DC-AC inverter and the power grid [1]- [3]. As shown in Fig.…”

Section: Introductionmentioning

confidence: 99%

“…However, the use of VMC brings two inrush currents that increase MOSFET's current stress and conduction loss. A similar topology [3] provides a voltage gain that is lower than [2] due to the use of only one voltage lift technique. However, it has a lower inrush current.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

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

2023

Self Cite

View full text Add to dashboard Cite

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

Section: Charge-second Balancementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

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

2023

Self Cite

View full text Add to dashboard Cite

show abstract

“…The voltage gain is low and insufficient. Therefore, new high gain topologies are required [1][2][3][4][5][6][7][8][9][10][11][12][13][14].…”

Section: Introductionmentioning

confidence: 99%

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

Mahdizadeh

Gholizadeh

Shahrivar

et al. 2022

IET Power Electronics

Self Cite

View full text Add to dashboard Cite

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.

show abstract

“…As has been presented in Figure 1d, the high value of the duty cycle provides poor values of efficiency. Consequently, providing a high value of the voltage gain by the low value of the duty cycle is not possible [5][6][7][8]. Employing high-frequency transformers can be a solution to increase the voltage gain [9].…”

Section: Introductionmentioning

confidence: 99%

Design and Implementation of a High Step-Up DC-DC Converter Based on the Conventional Boost and Buck-Boost Converters with High Value of the Efficiency Suitable for Renewable Application

et al. 2021

Self Cite

View full text Add to dashboard Cite

This paper introduces a novel topology of the proposed converter that has these merits: (i) the topology of the converter is based on conventional boost and buck-boost converters, which has caused its simplicity; (ii) the voltage gain of the converter has provided higher values by the lower value of the duty cycle; (iii) due to the use of high-efficiency conventional topologies in its structure, the efficiency of the converter keeps its high value for a great interval of duty cycle; (iv) besides the increase of the voltage gain, the current/voltage stresses of the semiconductors have been kept low; (v) the continuous input current of this converter reduces the current stress of the capacitor in the input filter. It is worth noting that the proposed converter has been discussed in both ideal and non-ideal modes. Moreover, the operation of the converter has been discussed in both continuous/discontinuous current modes. The advantages of the converter have been compared with recently suggested converters. In addition, the different features of the converter have been discussed for different conditions. In the small-signal analysis, the appropriate compensator has been designed. Finally, the simulation and experimental results have been reported for 90 W output power, 90 V output voltage, 3-times voltage gain, and 100 kHz switching frequency.

show abstract

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

Cited by 17 publications

References 22 publications

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

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

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

Design and Implementation of a High Step-Up DC-DC Converter Based on the Conventional Boost and Buck-Boost Converters with High Value of the Efficiency Suitable for Renewable Application

Contact Info

Product

Resources

About