A New High-Gain DC-DC Converter with Continuous Input Current for DC Microgrid Applications

Javed Ahmad, Mohammad Zaid, Adil Sarwar, Chang-Hua Lin, Mohammed Asim, Raj Kumar Yadav, Mohd Tariq, Kuntal Satpathi and Basem Alamri
Additional contact information
Javed Ahmad: Department of Electrical Engineering, National Taiwan University of Science and Technology, Taipei City 10607, Taiwan
Mohammad Zaid: Department of Electrical Engineering, ZHCET, Aligarh Muslim University, Aligarh 202002, India
Adil Sarwar: Department of Electrical Engineering, ZHCET, Aligarh Muslim University, Aligarh 202002, India
Chang-Hua Lin: Department of Electrical Engineering, National Taiwan University of Science and Technology, Taipei City 10607, Taiwan
Mohammed Asim: Electrical Engineering Department, Integral University, Lucknow 226021, India
Raj Kumar Yadav: Electronics Instrumentation & Control Engineering Department, College of Engineering, Ajmer 305001, India
Mohd Tariq: Department of Electrical Engineering, ZHCET, Aligarh Muslim University, Aligarh 202002, India
Kuntal Satpathi: Energy Exemplar (Singapore) Pte Ltd., 9 Battery Road, Singapore 049910, Singapore
Basem Alamri: Department of Electrical Engineering, College of Engineering, Taif University, Taif 21944, Saudi Arabia

Energies, 2021, vol. 14, issue 9, 1-14

Abstract: The growth of renewable energy in the last two decades has led to the development of new power electronic converters. The DC microgrid can operate in standalone mode, or it can be grid-connected. A DC microgrid consists of various distributed generation (DG) units like solar PV arrays, fuel cells, ultracapacitors, and microturbines. The DC-DC converter plays an important role in boosting the output voltage in DC microgrids. DC-DC converters are needed to boost the output voltage so that a common voltage from different sources is available at the DC link. A conventional boost converter (CBC) suffers from the problem of limited voltage gain, and the stress across the switch is usually equal to the output voltage. The output from DG sources is low and requires high-gain boost converters to enhance the output voltage. In this paper, a new high-gain DC-DC converter with quadratic voltage gain and reduced voltage stress across switching devices was proposed. The proposed converter was an improvement over the CBC and quadratic boost converter (QBC). The converter utilized only two switched inductors, two capacitors, and two switches to achieve the gain. The converter was compared with other recently developed topologies in terms of stress, the number of passive components, and voltage stress across switching devices. The loss analysis also was done using the Piecewise Linear Electrical Circuit Simulation (PLCES). The experimental and theoretical analyses closely agreed with each other.

Keywords: voltage stress; distributed generation (DG); high gain; quadratic boost (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: 2021
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (5)

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