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All Journal International Journal of Power Electronics and Drive Systems (IJPEDS)
Satish, Raavi
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Control & Systems Engineering Electrical & Electronics Engineering

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Design and analysis of a high-gain dual-input single-output DC-DC converter for hybrid energy systems applications Bharathi, Botta Venkata Vara Lova Kala; Satish, Raavi
International Journal of Power Electronics and Drive Systems (IJPEDS) Vol 14, No 3: September 2023
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijpeds.v14.i3.pp1534-1543

Abstract

The high gain converters are one among the proven topologies that are found attractive for industrial and commercial applications. They deal with high power ratings like automobile headlamps, energy backup systems, and fuel cell electric vehicles (FCEV). In literature, most of the topologies were used a single duty ratio. This may not be reliable for high-duty cycle operation because to improve the voltage gain, the components will be increases. This paper proposes the time-sharing concept based on the non-isolated high step-up dc-dc converter. With the parallel-charged and series-discharged inductors, the proposed converter can produce high output voltage gains. The effectiveness of the proposed circuit configuration is verified in MATLAB/Simulink and the results are corroborated by theoretical analysis.
Fault-tolerant single-input dual-output converter with preserved output under fault operation Bharathi, Botta Venkata Vara Lova Kala; Satish, Raavi
International Journal of Power Electronics and Drive Systems (IJPEDS) Vol 14, No 4: December 2023
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijpeds.v14.i4.pp2254-2263

Abstract

DC-DC converters have played an important role in the auxiliary power supply to electric vehicles, DC micro-grids, and portable electronic applications. To reduce the number of components and to improve the power density, multiport DC-DC converters have been recently proposed. Many multi-output converters are designed based on specific operational constraints on duty ratio or inductor currents. Further, simultaneous control of outputs is critical and involves cross-regulation issues. This paper proposes a single-input dual-output (SIDO) DC-DC converter with fault-tolerant circuit configuration to circumvent these challenges. The designed converter is helpful for the simultaneous control of loads by cross-regulation issues and has simple control without any control constraints on duty ratio or inductor currents. The topology proposed in this paper, can most significantly tolerate the failure during open-circuit for single and multiple switches and gives the preserved output voltage under fault case. The effectiveness and feasibility of the proposed configuration is validated using MATLAB/Simulink.
Co-Authors Bharathi, Botta Venkata Vara Lova Kala