High gain transformer-less inverter based-on capacitor clamping multi-phase boost converter

Saad, Oday; Hussain, Jasim Farhoud

doi:10.30684/etj.2022.131337.1028

	High gain transformer-less inverter based-on capacitor clamping multi-phase boost converter
Engineering and Technology Journal
Article 9, Volume 40, Issue 8, 2022, Pages 1071-1081 PDF (1.23 M)
Document Type: Research Paper
DOI: 10.30684/etj.2022.131337.1028
Authors
Oday saad^* ¹; Jasim Farhoud Hussain²
¹Department of Electrical Engineering, University of Technology, Iraq
²Department of Electrical Engineering, University of Technology, Iraq-Baghdad.
Abstract
ABSTRACT The boosting converters integrated with inverters are widespread use in many applications under transformerless inverter titles, including powered vehicles, PV systems, fuel cells systems and so on. Reliability, quality, maintainability, and reduction in size are important requirements in the energy conversion process. The multi-phase boost converter can be adopted as a good solution with high power applications. The multi-phase boost enhanced by clamping capacitor structure is providing low ripple, high gain and evident improvement in the efficiency when compared to the conventional converters. This paper investigates the transformerless inverter based on a capacitor clamping multi-phase boost converter. High gain proposed architectures are being designed to step-up voltage. The converter features a high voltage gain offers additional solutions based on the capacitor clamping structure. The proposed architectures are being designed to optimize the gaining in popularity as they are increasing the voltage gain and the efficiency and mitigate the switching frequency effect. The investigation of validation performance was introduced through the steady-state analysis and operation. The operation modes and mathematical analysis are presented. To validate the performance in terms of input and output ripple and values, the converters were tested using MATLAB / SIMULINK. The results supported the mathematical analysis. The voltage gains increased, reduce of ripple in input current and the output voltage is significantly detected. The switches stresses at the converter side are One-third of the output voltage.
Highlights
High gain Non-isolated DC/DC converter based on clamper circuit is presented. Interleave inductor technique for current and voltage ripple reduction, two clamper circuits for voltage gain enhancing. Mathematical and simulation gain is 15 at 93.4% efficiency, and switch stress is 33% o f .
Keywords
DC converter,,; ,،,؛Voltage gain,,; ,،,؛Switches voltage stress,,; ,،,؛Clamper circuit,,; ,،,؛Voltage ripple

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