FULL SOFT-SWITCHING HIGH STEP-UP CASCADED BOOST CONVERTER WITH THREE-WINDING COUPLED- INDUCTOR

Zainab Dabbagh; salam waley shneen jeaeb

doi:10.30572/2018/KJE/160315

Authors

Zainab Dabbagh Department of Construction and Projects, Ministry of Higher Education and Scientific Research, Baghdad, Iraq https://orcid.org/0009-0008-4331-4444
salam waley shneen Energy and Renewable Energies Technology Centre, University of Technology, Baghdad, Iraq https://orcid.org/0000-0003-3718-6104

DOI:

https://doi.org/10.30572/2018/KJE/160315

Keywords:

full soft switching, high step-up DC-DC cascaded boost converter, three-winding coupled inductor, voltage multiplier (VM), zero current switching (ZCS)

Abstract

The importance of transformers is highlighted in many applications, including industrial applications and renewable energies. Among the types that can be highlighted are a series soft-switching transformer with a voltage multiplier in addition to a double-threaded inductor. The series transformer is considered better than a regular transformer as it is possible to achieve a voltage gain greater than Ordinary transformers. Tests can also be performed using electronic switches in addition to a coupled inductor in the process of building a model of a cascade DC/DC converter. The results of the proposed simulation and tests are being verified to show the increase in gain due to the effect of a double-type, three-coil inductor. Tests were conducted using the ORCAD program by proposing an electronic power transformer to raise the voltage from 24 V to the input voltage. Work is underway to verify the possibility of raising the voltage to 200 V. Some electronic elements are added to the transformer to assist in the process of distributing voltages and branching currents. The passive elements include the coil and the capacitor, as well as the presence of the basic and active elements such as the diode and the transistor. All problems of electronic transformers can be overcome as a result of changing operating conditions with time and the occurrence of any disturbances such as lost energy during opening and closing. Electronic keys in addition to the problem of reverse recovery. Therefore, the effectiveness of the proposed circuit can be investigated to provide the required gain to represent a higher voltage than the low input voltage with a relatively high efficiency. The current study also discussed the behavior analysis of the proposed system to include the steady state, justifying the theoretical analysis and design considerations in detail

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