Analysis and investigation of energy transmission process in different operating modes of Sepic converter

Babaei, Ebrahim; Mahmoodieh, Mir Esmaeel Seyed

doi:10.1049/iet-pel.2013.0402

Cited by 19 publications

(17 citation statements)

References 17 publications

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“…By applying (5), (7), and (9) to (15) and (16), equations (15) and (16) can be rewritten as follows,…”

Section: ) Voltage and Current Stresses Of Power Devicesmentioning

confidence: 99%

“…Conventional buck/boost converters are widely used due to their simple topologies and required control strategies, but these converters cannot operate in extensively wide voltage-conversion range [11], [12]. For zeta/sepic and cuk/cuk type converters, energy transfer efficiency is low because of their twostage structures [13]- [15]. In order to improve the efficiency and increase the voltage-conversion range, many new nonisolated bidirectional dc-dc converters have been proposed.…”

Section: Introductionmentioning

confidence: 99%

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Inherently Non-Pulsating Input Current DC-DC Converter for Battery Storage Systems

Zhang

Jin

et al. 2020

IEEE Access

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With an ever-growing number of batteries being integrated into the electric grid, bidirectional converters with non-pulsating dc input current are required to replace the existing bidirectional converters so as to extend the lifetime of such dc power suppliers. Bidirectional DC-DC converters are increasingly used in a variety of applications including uninterruptable power supplies, electric vehicles and renewable energy systems. In this study, we propose a new topology of bidirectional dc-dc converter with inherently nonpulsating input current (NPIC), which is intended to be used for battery energy storage systems. With simple modifications from the conventional converters, the proposed NPIC converter has no inherent pulsating input current in the step-down (buck) mode under both continuous and boundary conduction modes (CCM and BCM), whereas in the step-up (boost) mode, the proposed NPIC converter retains the desired voltage gain. Underpinning theories, operating principles and steady-state performances are analyzed and presented in detail, which are then corroborated by simulation and experimentation. The proposed converter topology, with simple design principle and ease for implementation, is likely to have wide-ranging applicability in interfacing electrochemically functioned dc sources to modern power systems. INDEX TERMS Bidirectional dc-dc converter, non-pulsating input current, step-up mode, step-down mode, continuous conduction mode, boundary conduction mode.

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“…By applying (5), (7), and (9) to (15) and (16), equations (15) and (16) can be rewritten as follows,…”

Section: ) Voltage and Current Stresses Of Power Devicesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Inherently Non-Pulsating Input Current DC-DC Converter for Battery Storage Systems

Zhang

Jin

et al. 2020

IEEE Access

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“…SEPIC converter is like conventional buck‐boost converter and can give a higher or lower output voltage than the input. However, the voltage polarity of the output is similar to the input unlike the buck‐boost converter . The design consideration for SEPIC converter in different operating modes with details is presented in Babaei and Seyed Mahmoodieh .…”

Section: Introductionmentioning

confidence: 99%

“…However, the voltage polarity of the output is similar to the input unlike the buck‐boost converter . The design consideration for SEPIC converter in different operating modes with details is presented in Babaei and Seyed Mahmoodieh . The modified SEPIC converter is proposed in Saravanan and Babu .…”

Section: Introductionmentioning

confidence: 99%

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A fully soft switched high step‐up SEPIC‐boost DC‐DC converter with one auxiliary switch

Mirzaei

Rezvanyvardom

Najafi

2019

Circuit Theory & Apps

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Summary This paper proposed a new single‐ended primary inductor converter (SEPIC)‐boost DC‐DC converter that uses only one auxiliary switch to create soft switching condition for all semiconductor devices. The auxiliary circuit comprises one power switch (Sa), one resonant inductor (Lr), one resonant capacitor (Cr), and one diode (Do2). The auxiliary switch (Sa) controls the resonance during switching instants. The converter has simple structure and its control circuit remains pulse width modulation (PWM). Besides, the proposed converter has high voltage gain without using any transformer or coupled inductors. In addition, the auxiliary switch is not located in the main power path. Moreover, using soft switching techniques is the best way for reducing the size, weight, and volume of the converter. Furthermore, reduction of input inrush current and voltage stress for the main switch is obtained by using SEPIC‐boost structure. A laboratory prototype converter is designed and implemented. The experimental results presented confirm the theoretical and features of the proposed converter.

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Design and Implementation of SEPIC Converter Based Nine-Level MLI Fed IM with PI, FLC, and ANN Controller

Karthikeyan¹,

Lakshmi²,

Gobhinath³

2020

Lecture Notes in Mechanical Engineering

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Analysis and investigation of energy transmission process in different operating modes of Sepic converter

Cited by 19 publications

References 17 publications

Inherently Non-Pulsating Input Current DC-DC Converter for Battery Storage Systems

Inherently Non-Pulsating Input Current DC-DC Converter for Battery Storage Systems

A fully soft switched high step‐up SEPIC‐boost DC‐DC converter with one auxiliary switch

Design and Implementation of SEPIC Converter Based Nine-Level MLI Fed IM with PI, FLC, and ANN Controller

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