A New Structure of High Voltage Gain SEPIC Converter for Renewable Energy Applications

Maroti, Pandav Kiran; Padmanaban, Sanjeevikumar; Holm‐Nielsen, Jens Bo; Bhaskar, Mahajan Sagar; Meraj, Mohammad; Iqbal, Atif

doi:10.1109/access.2019.2925564

Cited by 119 publications

(60 citation statements)

References 25 publications

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“…Isolated DC-DC converters introduced to overcome these disadvantages of conventional converters for delivering high output voltage [4]. Nonetheless, high voltage spike causes the use of energy recycle techniques, nondissipative snubber circuit, high-frequency transformer, and clamping techniques to decrease the voltage spike and stress [5]. Therefore, the circuit is costly and large in volume due to the supplementary circuit which decreases its efficiency.…”

Section: Introductionmentioning

confidence: 99%

A New Hybrid Zeta-Boost Converter With Active Quad Switched Inductor for High Voltage Gain

et al. 2021

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For renewable sources application like smart grids, microgrids, etc. high voltage gain converter becomes a fundamental unit. In this paper, a new hybrid circuit of zeta and boost converter based on activequad-switched-inductor (AQSL) is proposed. The discontinuous input current in classical zeta circuit determines the less consumption of input source. However, the proposed hybrid zeta-boost converter provides a higher voltage gain with continuous input and output currents. It achieves higher voltage gain devoid of the high-frequency transformer, and multiple stages of diode and capacitor circuit. The mode of operation, boundary region, and non-ideal model of the proposed converter are presented. Design consideration and a comparison study with recent circuits are provided. The design circuitry of the proposed converter investigated and the functionality of the suggested circuit is validated. INDEX TERMS Active-quad-switched-inductor, boost circuit, high voltage gain, hybrid configuration, zeta circuit.

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Section: Introductionmentioning

confidence: 99%

A New Hybrid Zeta-Boost Converter With Active Quad Switched Inductor for High Voltage Gain

et al. 2021

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“…Besides, the efficiency also increased by replacing the passive clamp circuit by the active clamp circuit if the rating is more than 500 W. However, for a low power application (say, <500 W), the proposed converter with RCD clamp circuit holds a better position in terms of cost, whereas, for the rating above 500 W, it is suggested to go with the active clamp circuit to have better conversion efficiency. The extension of the proposed converter with the active clamp circuit is also presented in Figure 17 for the researchers as a future extension and the same has been derived from [45]. However, the operation of the converter is similar to the previous discussions.…”

Section: Hardware Resultsmentioning

confidence: 65%

Design and Development of Non-Isolated Modified SEPIC DC-DC Converter Topology for High-Step-Up Applications: Investigation and Hardware Implementation

Premkumar¹,

Subramaniam

Alhelou

et al. 2020

Energies

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A new non-isolated modified SEPIC front-end dc-dc converter for the low power system is proposed in this paper, and this converter is the next level of the traditional SEPIC converter with additional devices, such as two diodes and splitting of the output capacitor into two equal parts. The circuit topology proposed in this paper is formulated by combining the boost structure with the traditional SEPIC converter. Therefore, the proposed converter has the benefit of the SEPIC converter, such as continuous input current. The proposed circuit structure also improves the features, such as high voltage gain and high conversion efficiency. The converter comprises one MOSFET switch, one coupled inductor, three diodes, and two capacitors, including the output capacitor. The converter effectively recovers the leakage energy of the coupled inductor through the passive clamp circuit. The operation of the proposed converter is explained in continuous conduction mode (CCM) and discontinuous conduction mode (DCM). The required voltage gain of the converter can be acquired by adjusting the coupled inductor turn’s ratio along with the additional devices at less duty cycle of the switch. The simulation of the proposed converter under CCM is carried out, and an experimental prototype of 100 W, 25 V/200 V is made, and the experimental outcomes are presented to validate the theoretical discussions of the proposed converter. The operating performance of the proposed converter is compared with the converters discussed in the literature. The proposed converter can be extended by connecting voltage multiplier (VM) cell circuits to get the ultra-high voltage gain.

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“…In this section, a comparative study of the proposed converter with other similar high gain converter structures is presented, such as the multilevel boost converter [26], non-isolated DC-DC boost converter with voltage-lift technique [18], Traditional switched inductor based DC-DC boost converter [21], converter-I in [22], modified SEPIC converter in [23], ASL-SU2C-VO-configuration [24], and modified SEPIC converter (MSC) [25]. The number of components, normalized voltage stress across the switches, switch current stress, efficiency at rated power, and the gain in voltage for these converters are presented in Table I.…”

Section: Comparative Analysismentioning

confidence: 99%

A New High Gain Active Switched Network-Based Boost Converter for DC Microgrid Application

et al. 2021

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This paper deals with an active switched inductor network-based high gain boost converter.By using less number of components in circuit topology, a higher gain in voltage can be attained at a small duty cycle value by using the proposed converter, which helps in reducing the switch voltage stress and conduction loss. In addition, it draws continuous input current, has lower diode voltage stress, and lower passive component voltage ratings. The operating principles and key waveforms in Continuous Conduction Mode (CCM) and Discontinuous Conduction Mode (DCM) are presented. Parameter design, power loss calculation, characteristics, and comparative study with other non-isolated converters have been presented. Finally, a 200W hardware prototype is constructed and the viability of the proposed converter is verified through the experimentally obtained results.

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A New Structure of High Voltage Gain SEPIC Converter for Renewable Energy Applications

Cited by 119 publications

References 25 publications

A New Hybrid Zeta-Boost Converter With Active Quad Switched Inductor for High Voltage Gain

A New Hybrid Zeta-Boost Converter With Active Quad Switched Inductor for High Voltage Gain

Design and Development of Non-Isolated Modified SEPIC DC-DC Converter Topology for High-Step-Up Applications: Investigation and Hardware Implementation

A New High Gain Active Switched Network-Based Boost Converter for DC Microgrid Application

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