Integration of Photovoltaic-Based Transformerless High Step-Up Dual-Output–Dual-Input Converter with Low Power Losses for Energy Storage Applications

Belqasem Aljafari, Senthil Kumar Ramu, Gunapriya Devarajan and Indragandhi Vairavasundaram
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Belqasem Aljafari: Department of Electrical Engineering, College of Engineering, Najran University, Najran 11001, Saudi Arabia
Senthil Kumar Ramu: Department of Electrical and Electronics Engineering, Sri Krishna College of Technology (Autonomous), Coimbatore 641042, Tamil Nadu, India
Gunapriya Devarajan: Department of Electrical and Electronics Engineering, Sri Eshwar College of Engineering, Coimbatore 641202, Tamil Nadu, India
Indragandhi Vairavasundaram: School of Electrical Engineering, Vellore Institute of Technology, Vellore 632014, Tamil Nadu, India

Energies, 2022, vol. 15, issue 15, 1-19

Abstract: The synchronous integration of numerous input and output loads is possible with multi-input (MI) and multi-output (MO) DC–DC converters. In this paper, the non-isolated DC–DC converter described, which has a high step-up capability and multiple ports for outputs and inputs for energy storage system (ESS) applications. The voltage level of the converter is changeable. The capacity to provide the large voltage increases with a low duty cycle portion, the ease with which each duty cycle can be controlled, and minimal power losses are all advantages of the proposed design. The proposed system offers advantages for applications requiring energy storage. In the continuous conduction mode (CCM), the operation principles, steady-state evaluation, and extracting of the voltage and current coefficients are performed. The supply sources can be inserted or withdrawn without causing a cross-regulation issue in the proposed converter. Ultimately, the functionality of the proposed structure is examined using simulation and the laboratory prototype that has been implemented. The proposed converter achieved 94.3% efficiency at maximum power. In addition, the proposed converter attained minimum losses with a difference of 28.5 W when compared to a conventional converter.

Keywords: multi-input multi-output; step-up converter; energy storage; DC–DC converter (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2022
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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