A High Step-up DC-DC Converter Based on the Voltage Lift Technique for Renewable Energy Applications

Shahrukh Khan, Arshad Mahmood, Mohammad Zaid, Mohd Tariq, Chang-Hua Lin, Javed Ahmad, Basem Alamri and Ahmad Alahmadi
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Shahrukh Khan: Department of Electrical Engineering, ZHCET, Aligarh Muslim University, Aligarh 202002, India
Arshad Mahmood: Department of Electrical Engineering, ZHCET, Aligarh Muslim University, Aligarh 202002, India
Mohammad Zaid: Department of Electrical Engineering, ZHCET, Aligarh Muslim University, Aligarh 202002, India
Mohd Tariq: 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
Javed Ahmad: Department of Electrical Engineering, National Taiwan University of Science and Technology, Taipei City 10607, Taiwan
Basem Alamri: Department of Electrical Engineering, College of Engineering, Taif University, Taif 21944, Saudi Arabia
Ahmad Alahmadi: Department of Electrical Engineering, College of Engineering, Taif University, Taif 21944, Saudi Arabia

Sustainability, 2021, vol. 13, issue 19, 1-24

Abstract: High gain DC-DC converters are getting popular due to the increased use of renewable energy sources (RESs). Common ground between the input and output, low voltage stress across power switches and high voltage gain at lower duty ratios are desirable features required in any high gain DC-DC converter. DC-DC converters are widely used in DC microgrids to supply power to meet local demands. In this work, a high step-up DC-DC converter is proposed based on the voltage lift (VL) technique using a single power switch. The proposed converter has a voltage gain greater than a traditional boost converter (TBC) and Traditional quadratic boost converter (TQBC). The effect of inductor parasitic resistances on the voltage gain of the converter is discussed. The losses occurring in various components are calculated using PLECS software. To confirm the performance of the converter, a hardware prototype of 200 W is developed in the laboratory. The simulation and hardware results are presented to determine the performance of the converter in both open-loop and closed-loop conditions. In closed-loop operation, a PI controller is used to maintain a constant output voltage when the load or input voltage is changed.

Keywords: high gain; low voltage stress; voltage lift (VL); renewable energy sources (RESs); equivalent series resistance (ESR) (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2021
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