A high efficiency input/output magnetically coupled interleaved buck–boost converter with low internal oscillation for fuel-cell applications: Small signal modeling and dynamic analysis

Samavatian, Vahid; Radan, Ahmad

doi:10.1016/j.ijepes.2014.11.011

Cited by 21 publications

(6 citation statements)

References 28 publications

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“…By comprehensively examining power loss contributions from each component, we can identify potential areas for improvement and make informed decisions to enhance overall converter efficiency. As such, the investigation of the proposed topology's efficiency involves the consideration of two primary types of power losses: conducting and switching losses [44], [45]. Analyzing these losses provides valuable insights into the converter's energy efficiency and performance.…”

Section: Power Loss Analysismentioning

confidence: 99%

Development of a High-Gain Step-Up DC/DC Power Converter With Magnetic Coupling for Low-Voltage Renewable Energy

Du,

Samavatian,

Samavatian

et al. 2023

IEEE Access

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There exists an extensive range of applications for elevated gain DC/DC converters, as numerous low-voltage resources are exploited for power supply. Therefore, this study introduces a groundbreaking magnetically coupled DC/DC converter specifically designed for resources with low voltage, including micro PV or fuel cell systems. By enduring low current and voltage stresses, the power devices in this converter ensure remarkable efficiency while maintaining proven voltage ratio capability. The operational principles of the converter are thoroughly discussed and supported by the implementation of a 200W-400V prototype. In order to confirm the effectiveness of the converter, a range of experimental tests were carried out in different scenarios, confirming its dependable functionality. This novel converter opens up new possibilities for harnessing the potential of low-voltage resources, offering an efficient and reliable solution for power conversion. The results obtained from this research make a significant contribution to the progress of renewable energy systems by demonstrating the practicality and efficiency of the suggested converter in real-life situations.INDEX TERMS DC/DC converter, elevated gain, low input current, magnetically coupled NOMENCLATURE

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Section: Power Loss Analysismentioning

confidence: 99%

Development of a High-Gain Step-Up DC/DC Power Converter With Magnetic Coupling for Low-Voltage Renewable Energy

Du,

Samavatian,

Samavatian

et al. 2023

IEEE Access

Self Cite

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“…Both of these modes are possible. Samavatian et al [321] used a magnetically connected input-output inductor to simulate an interleaved buck-boost converter. The SSA approach was used in the analysis.…”

Section: Buck-boost Convertermentioning

confidence: 99%

Modernisation of DC-DC converter topologies for solar energy harvesting applications: A review

Sutikno

Purnama

Aprilianto

et al. 2022

IJEECS

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Solar photovoltaic (PV) power generation has become increasingly important as a renewable source of energy due to the many benefits it offers. These benefits include the ease with which it can be allocated; the absence of noise; the longer life; the absence of pollution; the shorter amount of time required for installation; the high mobility and portability of its parts; and the capability of its output power to meet peak load requirements. DC-DC converters are typically incorporated into solar energy harvesting systems because they allow for the more efficient exploitation of solar cells. One of the difficulties is in the selection of a suitable converter since this has an effect on the operation of the PV system. This study discusses the modernisation of several different DC-DC converter topologies for solar energy harvesting systems. Some of these topologies are boost, buck-boost, single-ended primary-inductance converter (SEPIC), Cuk, and flyback. The topologies have been compared so that detailed information on the complexity of the hardware, the cost of implementation, the efficiency of the energy transfer elements, the tracking efficiency, and the efficiency of the converters can be provided. This paper will be useful as a handy reference in choosing the best converter topology for solar energy harvesting applications.

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“…The first functional block is the AC/DC converter consisting of a Graetz bridge with Schottky diodes. 32,33 These diodes have the particularity to be fast with a low threshold voltage: 0.3-0.4 V. The circuit is also equipped with a filter capacitor and a Zener protection diode, limiting voltage spikes to 5 V. 2. The second stage constitutes the energy treatment system (Texas Instruments BQ25504) whose operation has been described above.…”

Section: A Modeling Of the Energy Extraction Circuit (Bq25504)mentioning

confidence: 99%

An autonomous low-power management system for energy harvesting from a miniaturized spherical piezoelectric transducer

Diab

Lefebvre²,

Nassar³

et al. 2019

Review of Scientific Instruments

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A new spherical vibrational energy harvesting device with an additional low power management circuit for optimizing the power transfer from the mechanical vibrations to a storage capacitor is presented. The device is devoted to underwater wireless sensor network applications due to its broadband vibrational energy harvesting, sensing, and communicating facilities. The sensing node container consists of two acrylic glass (PMMA) half-spherical shells and a Pz26 piezoelectric ring clamped between the shells. The energy harvesting, the management circuit, and communication electronics were fitted within the hollow portion of the sphere. A simulation model of the energy extraction and management system using SPICE has been developed. This simulation shows the feasibility and efficiency of the low power extraction circuit; a level of the necessary stored voltage was set at 3 V. The numerical model was validated by underwater experimental measurements; a voltage of 3 V was obtained at the terminals of a storage capacitor (47 µF) which was sufficient to supply the communication electronics. Power harvesting performances were measured relative to the transmitter/sensor distance and the incident acoustical field excitation voltage. Finally, 175 µW of harvested power has been measured with an excitation voltage of 8 Vpp at 5 cm distance from the emitter.

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A high efficiency input/output magnetically coupled interleaved buck–boost converter with low internal oscillation for fuel-cell applications: Small signal modeling and dynamic analysis

Cited by 21 publications

References 28 publications

Development of a High-Gain Step-Up DC/DC Power Converter With Magnetic Coupling for Low-Voltage Renewable Energy

Development of a High-Gain Step-Up DC/DC Power Converter With Magnetic Coupling for Low-Voltage Renewable Energy

Modernisation of DC-DC converter topologies for solar energy harvesting applications: A review

An autonomous low-power management system for energy harvesting from a miniaturized spherical piezoelectric transducer

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