A Three-Winding Coupled Inductor-Based Interleaved High-Voltage Gain DC–DC Converter for Photovoltaic Systems

Rahimi, Ramin; Habibi, Saeed; Ferdowsi, Mehdi; Shamsi, Pourya

doi:10.1109/tpel.2021.3099486

Cited by 34 publications

(24 citation statements)

References 37 publications

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“…The converter presented in [44] offers a good voltage gain of 14.92 using only 12 components with the least voltage stress on the switch. However, due to the lower power rating of about 216W, the P0/M and P0/TCC ratios of the converter becomes negligible.…”

Section: CI Based Converters Versus the Proposed Hghp Convertermentioning

confidence: 99%

“…The switches of all the converters compared in Table IV are subjected to a low voltage stress value only. Significantly, the switches employed in [44] and [45] suffer from the least and second least voltage stress values; the use of voltage gain extension mechanism and the power levels result in low voltage stress values. The converters employed in [44] and [46] use only the energy storage inductors for limiting the input current ripple.…”

Section: CI Based Converters Versus the Proposed Hghp Convertermentioning

confidence: 99%

“…Significantly, the switches employed in [44] and [45] suffer from the least and second least voltage stress values; the use of voltage gain extension mechanism and the power levels result in low voltage stress values. The converters employed in [44] and [46] use only the energy storage inductors for limiting the input current ripple. The other converters compared in Table IV use interleaving technique which results in reducing the input current ripple to a large extent.…”

Section: CI Based Converters Versus the Proposed Hghp Convertermentioning

confidence: 99%

“…Though CI based converters offer higher voltage gain the winding leakage inductance causes voltage spikes and results in increased voltage stress on the power switches. Converters employing multi-winding CIs [44], [45] and dual CIs [46] also provide the required higher voltage conversion ratios. However, such converters are rarely used due to the complexity involved in designing and manufacturing the required magnetic components.…”

Section: Introductionmentioning

confidence: 99%

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Solar PV Fed DC Microgrid: Applications, Converter Selection, Design and Testing

Revathi

Prabhakar

2022

IEEE Access

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In this research article, major applications which use solar PV fed DC microgrid for either their routine operation or gain additional advantages over existing electrical power architecture are elaborated. The role of power converters in interfacing the input with the required output is highlighted. The advantages of solar PV fed DC microgrid are demonstrated by designing and testing a non-isolated high gain high power (HGHP) DC-DC converter to meet the DC distribution voltage level. The proposed converter is synthesized by using hybrid combination of three-phase interleaved boost converter (IBC) with voltage lift technique along with coupled inductors (CIs) and voltage multiplier cell (VMC). The proposed concept is practically demonstrated and the adopted design techniques are validated using simulation and experimentation. The proposed converter with 60V/1.1kV, 100kHz and 3kW rating operates at 92.3% full-load efficiency under practical conditions. Due to the gain extension techniques adopted, the switches used in the proposed converter are subjected to a voltage stress which is only 36% of the output voltage. Due to interleaving technique, the input current ripple and the current stress on the switches are only 15% and 33% of the input current respectively. Key performance parameters of this converter are thoroughly investigated and benchmarked with some state-of-the art converters to appreciate the salient features of the presented converter. The ability to yield higher voltage gain at safe duty ratio, high power handling capacity, low voltage and current stresses on the power switches are the main advantages of the proposed converter.INDEX TERMS DC-DC power converters, distributed power generation, power conversion, power electronics, renewable energy sources.

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Section: CI Based Converters Versus the Proposed Hghp Convertermentioning

confidence: 99%

Section: CI Based Converters Versus the Proposed Hghp Convertermentioning

confidence: 99%

Section: CI Based Converters Versus the Proposed Hghp Convertermentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Solar PV Fed DC Microgrid: Applications, Converter Selection, Design and Testing

Revathi

Prabhakar

2022

IEEE Access

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“…The associate editor coordinating the review of this manuscript and approving it for publication was Kan Liu . The traditional boost DC-DC converter can provide a high-voltage gain under extremely large duty cycles; however, it suffers from high voltage and current stresses in the semiconductor devices, reverse-recovery problem in the output, diode, large ripple on the input current and the output voltage and high power losses [4], [5]. To eliminate these effects, voltage-boosting (VB) techniques were presented to extend the voltage gain of the conventional boost converter without an extremely high duty cycle.…”

Section: Introductionmentioning

confidence: 99%

An Interleaved High Step-Up DC-DC Converter Based on Integration of Coupled Inductor and Built-in-Transformer With Switched-Capacitor Cells for Renewable Energy Applications

et al. 2022

Self Cite

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This paper proposes an interleaved high step-up DC-DC converter with the coupled inductor (CI) and built-in transformer (BIT) for renewable energy applications. Two double-winding (2W) CIs and one triple-winding (3W) BIT are integrated with the switched-capacitor (SC) voltage multiplier cells (VMCs) to achieve high-voltage gains without extreme duty cycles. The CIs and BIT turns-ratios provide two other degrees of freedom-in addition to the duty cycle-to adjust the voltage gain that leads to increased design flexibility. The diodes turn off naturally under the zero-current switching (ZCS) conditions because their current falling rates are controlled by the leakage inductances of the CIs and BIT; therefore, the diodes' reverse-recovery problems are alleviated. Moreover, employing passive diode-capacitor clamp circuits, the voltage stresses of the switches are limited to a low value far less than the output voltage. Additionally, the leakage inductances energies are recycled and transferred to the output to further extend the voltage gain. Furthermore, due to the interleaved structure, the input current ripple and current stresses of the components are reduced. The proposed converter is analyzed in detail and then compared with similar converters that employed CIs and/or BIT along with passive/active clamp circuits for the MOSFETs. Finally, to verify the feasibility of the proposed converter, the experimental results of a 200 W prototype with output voltage of 400 V and voltage gain of 25 are presented.

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Evaluation of cascaded combinations of boost DC–DC converter and three‐winding coupled inductor for high‐voltage gain applications

Loureiro

Andrade

2023

Circuit Theory & Apps

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SummaryThis article presents three topologies of high‐voltage gain DC–DC converter based on boost converter with three‐winding coupled inductor. Before proposing these converters, a cascade cell connection synthesizing approach was initially evaluated. This approach allowed the generation of a set of six high‐voltage gain converters. However, only three converters present good performance. Thus, to demonstrate the advantages, disadvantages, and limitations of each converter, the following characteristics are evaluated: the operating principle of the proposed converter, gain of voltage, voltage, and current stress, in addition to the factors of total voltage stress and total current stress, factors that indicate the choice of components with lower intrinsic resistances. To validate these analyses, a 250 W, 30 V/400 V prototype was implemented experimentally, reaching a maximum efficiency of 96%.

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A Three-Winding Coupled Inductor-Based Interleaved High-Voltage Gain DC–DC Converter for Photovoltaic Systems

Cited by 34 publications

References 37 publications

Solar PV Fed DC Microgrid: Applications, Converter Selection, Design and Testing

Solar PV Fed DC Microgrid: Applications, Converter Selection, Design and Testing

An Interleaved High Step-Up DC-DC Converter Based on Integration of Coupled Inductor and Built-in-Transformer With Switched-Capacitor Cells for Renewable Energy Applications

Evaluation of cascaded combinations of boost DC–DC converter and three‐winding coupled inductor for high‐voltage gain applications

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