A Buck-Boost DC/DC Converter with High Efficiency Suitable for Renewable Energies

Maalandish, Mohammad; Hosseini, Seyed Hossein; Jalilzadeh, Tohid; Pourjafar, Saeed

doi:10.1515/ijeeps-2017-0250

Cited by 12 publications

(5 citation statements)

References 20 publications

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“…Multi-level connection can be used for both single-input DC source and multi-input DC source converters. As shown in Figure 26a, a module composed of inductors, diodes, and capacitors was introduced in [55]. Multi-level buck-boost converters are realized by using this module.…”

Section: Different Ways Of Connectingmentioning

confidence: 99%

Review of Voltage-Bucking/Boosting Techniques, Topologies, and Applications

Wang

2023

Energies

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As non-isolated step-up and step-down DC–DC converters are at present widely used in various fields, this review will summarize and introduce non-isolated step-up and step-down DC–DC converters in various aspects. First of all, the origin and development of power electronics technology and the generation and principle of certain basic non-isolated step-up and step-down DC–DC converters are briefly stated. Subsequently, according to their different characteristics, including whether they are unidirectional or bidirectional, voltage-fed or current-fed, or hard-switching or soft-switching, the review will classify them and analyze their advantages and disadvantages. Meanwhile, in order to change the voltage gains of the DC–DC converters, different voltage change techniques are applied to them. The review will elaborate on the four technologies (switched capacitors, voltage multipliers, switched inductors and different ways of connecting), providing examples and analyzing the topologies in which they are applied, before summarizing the advantages and disadvantages of these techniques. Finally, this review will describe the specific applications of non-isolated step-up and step-down DC–DC converters and the reasons behind their ubiquity and popularity. Although the performances of current DC–DC converter topologies are good, there continues to be increasing demand, an updating of the topology structure, and improvements in terms of their performance. In the future, DC–DC converters will play a more important role in industrial production and people’s lives.

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Section: Different Ways Of Connectingmentioning

confidence: 99%

Review of Voltage-Bucking/Boosting Techniques, Topologies, and Applications

Wang

2023

Energies

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“…Similar models are discussed in [20], [21], that aim at power converters, integrated high-quality rectifier regulator, and genetic algorithm (GA) with MLI and in [22]- [25] which aims at reducing harmonics from outputs, thereby improving conversion efficiency levels. Extensions to these models are discussed in [26]- [31] which propose use of switched reluctance motor (SRM), neutral point clamped (NPC), dynamic voltage restorer (DVR) topologies, high brightness light emitting diode (HB-LED), and non-isolated buck-boost dc/dc converters. Based on these methods, it can be observed that very few general-purpose optimization models are available for buck-boost converter performance improvement.…”

Section: Literature Reviewmentioning

confidence: 99%

Design of an efficient convolutional buck-boost converter for hybrid bioinspired parameter tuning

Mutta¹,

Goswami²

2023

Bulletin EEI

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Power-electronic systems with voltage boosts use buck-boost converters. These converters suppress current and invert voltage to improve voltage swing. Power-electronic systems with voltage boosts use buck-boost converters that suppress current and invert voltage to improve voltage swings. Researchers propose many converter models, but their total harmonic distortion (THD) limits their scalability. Harmonics from additional current components increase THD. The model filters excessive currents using inductor-based storage, capacitive filters, and resistive circuits. However, these models are unstable, reducing their performance in large converter circuits. This text proposes a novel convolutional neural network (CNN) with a hybrid bioinspired model based on genetic algorithm (GA) and particle swarm optimization (PSO) to overcome this limitation. Estimating internal buck and boost parameters efficiently reduces reverse currents. These parameters include inductor current ripple, recommended inductance, internal switch current limit, and switching frequency. The model finds low-power, high-efficiency buck-boost configurations based on these values. Incremental learning operations tuned the GA model, which was applied to many buck-boost configurations. The proposed model had a 5.9% lower delay, 16.2% lower harmonics, and 4.6% better power efficiency than state-of-the-art buck-boost models.

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“…The isolated converters usually utilize either a high-frequency transformer or a coupled-inductor to provide electrical isolation and to support a high conversion ratio of voltage by designing the turn's ratio of the high-frequency transformer or the coupled-inductor. The bidirectional dc-dc flyback converters, half-bridge and full-bridge converters are some examples of isolated BDCs [2][3][4][5][6][7]. A bidirectional fly-back converter is one of commonly used isolated BDCs due to its simple structure and easy control.…”

Section: Introductionmentioning

confidence: 99%

“…However, the auxiliary clamping circuit used in these topologies will increase the size and cost of the converter. Numerous isolated topologies based on the halfbridge converter [4,5] or full-bridge converters [6,7] have been developed. Most of these converters possess soft-switching features but the need for more switches and driving circuits accompanied by them is their common drawback.…”

Section: Introductionmentioning

confidence: 99%

A high step‐up high step‐down coupled inductor based bidirectional DC–DC converter with low voltage stress on switches

Abolhassani,

Maalandish,

Nadermohammadi

et al. 2024

IET Power Electronics

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This paper proposes, a novel soft‐switching bidirectional direct current to direct current (DC–DC) converter based on switched‐capacitor and coupled‐inductor. The proposed converter has a simple structure and utilizes four switches and a three‐winding coupled inductor and can achieve a high voltage conversion ratio in both step‐up/step‐down operations. By employing the switched‐capacitor technique, voltage stress across the power switches is low and therefore low voltage rating switches can be adopted to reduce the losses of their conduction. Soft‐switching characteristic of the proposed converter reduces the switching loss of active power switches and raises the conversion efficiency. This paper presents theoretical analysis for all operating modes of the converter, voltage conversion ratio, voltage and current stresses of all power switches. Finally, to test the validity of theoretical results and demonstrate the performance of the converter, experimental results are provided.

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A Buck-Boost DC/DC Converter with High Efficiency Suitable for Renewable Energies

Cited by 12 publications

References 20 publications

Review of Voltage-Bucking/Boosting Techniques, Topologies, and Applications

Review of Voltage-Bucking/Boosting Techniques, Topologies, and Applications

Design of an efficient convolutional buck-boost converter for hybrid bioinspired parameter tuning

A high step‐up high step‐down coupled inductor based bidirectional DC–DC converter with low voltage stress on switches

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