A Novel High Voltage Gain Noncoupled Inductor SEPIC Converter

Ansari, Sajad Arab; Moghani, Javad Shokrollahi

doi:10.1109/tie.2018.2878127

Cited by 120 publications

(123 citation statements)

References 27 publications

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“…From (27), the voltage stress of the diodes Figure 10A shows the voltage stress and current of the diodes D 1 and D 2 . From (24) and (25), the voltage across the diodes D 1 and D 2 are approximately 40 and 30 V, respectively, which are close to the experimental results. The voltage and current of the diode D 3 , leakage inductance current, and voltage of the capacitor C 3 are illustrated in Figure 10B.…”

Section: Resultssupporting

confidence: 82%

“…Hence, in this section, the steady‐state analysis of the proposed converter and design considerations are presented. Because of the numerous shortcomings of operating in discontinuous conduction mode (DCM) such as dependence on the frequency of the output power and inductance value, slow dynamic, and high current stress of the components, the introduced converter should be designed to operate under CCM condition . Also, to simplify the analysis, the modes 1 and 3 are ignored since their time duration compared with the switching period is negligible.…”

Section: Steady‐state Analysismentioning

confidence: 99%

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Single switch quadratic boost converter with continuous input current for high voltage applications

Mirzaee

Ansari

Moghani

2020

Circuit Theory & Apps

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Summary In this paper, a novel non‐isolated very high step‐up DC‐DC converter is presented. The introduced converter benefits from various advantages, namely, very high voltage gain, low voltage stress on the active switch, and continuous input current with low ripple. Therefore, the presented converter is suitable for renewable energy applications. In addition, the energy of the leakage inductance of the coupled inductor is successfully recovered, and the voltage spike of the active switch is clamped during the turn‐off process. Hence, a switch with low Rds−on can be used, which decreases the conduction losses as well as cost of the converter. Furthermore, the voltage stress of the output diode is decreased, which reduces the reverse recovery problem. The steady‐state analysis and design considerations of the proposed converter are discussed. Finally, the theoretical analysis is validated with the experimental results at an output power of 150 W.

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Section: Resultssupporting

confidence: 82%

Section: Steady‐state Analysismentioning

confidence: 99%

Single switch quadratic boost converter with continuous input current for high voltage applications

Mirzaee

Ansari

Moghani

2020

Circuit Theory & Apps

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“…For fair comparison, the unidirectional form of Ardi et al 14 has been considered, where S 3 and S 4 switches can be replaced by diodes. Figure 7 illustrates the step-up capability of proposed and previous articles [11][12][13][14][15][16][17][18][19] topologies across different duty cycles. Figure 7 confirms that the proposed topology can produce higher gains than other topologies in D > 70% and has the second highest gain (after Prabhala et al 16 ) during D < 70%.…”

Section: Comparison Resultsmentioning

confidence: 99%

Novel high step‐up DC–DC converter with increased voltage gain per devices and continuous input current suitable for DC microgrid applications

Varesi

Hassanpour

Saeidabadi

2020

Circuit Theory & Apps

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“…The voltage gain of the SEPIC converter is less than the conventional boost converter per duty ratio. The voltage gain of the SEPIC converter and boost converter is equal to D/(1-D), and 1/(1-D), respectively (Park et al, 2010;Ansari and Moghani, 2019). If the structure of the SEPIC converter is slightly modified, it may step-up voltage than the conventional boost converter.…”

Section: Introductionmentioning

confidence: 99%

Analysis and Implementation of High-Performance DC-DC Step-Up Converter for Multilevel Boost Structure

Premkumar¹,

Kumar²,

Sowmya

2019

Front. Energy Res.

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The conventional DC-DC converters such as SEPIC, boost converter, etc. produces large voltage ripples in multilevel converter systems. For that reason, in this paper, a new DC-DC converter topology is proposed, and the performance is analyzed. Since the proposed converter delivers high conversion efficiency, it can be selected for multilevel boost DC-DC converters. The adverse effects such as inductor resistance and inductor size of the conventional converters are overcome by the proposed converter. The output voltage ripples are reduced in the proposed converter, i.e., the spikes in the converter output voltage are almost zero. The theoretical analysis is presented in this paper, which speaks about the advantage of the proposed converter. The converter operation is analyzed and discussed in continuous conduction mode (CCM). The voltage gain of the proposed converter is higher than the conventional boost converter. To validate the performance of the proposed converter, an experimental prototype is fabricated and tested in the laboratory. The performance of the converter is compared with the conventional boost and SEPIC converter. The experimental result confirms the theoretical analysis. The proposed converter can be extended by connecting more number of voltage multiplier (VM) cells to get the desired multilevel output voltage.

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A Novel High Voltage Gain Noncoupled Inductor SEPIC Converter

Cited by 120 publications

References 27 publications

Single switch quadratic boost converter with continuous input current for high voltage applications

Single switch quadratic boost converter with continuous input current for high voltage applications

Novel high step‐up DC–DC converter with increased voltage gain per devices and continuous input current suitable for DC microgrid applications

Analysis and Implementation of High-Performance DC-DC Step-Up Converter for Multilevel Boost Structure

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