A Single Switch Transformer-Less DC-DC Converter with Continuous Input Current for Photovoltaic Applications

Autor: Sirous Toofan, Babak Fathipour, Ebrahim Babaei
Jazyk: angličtina
Rok vydání: 2024
Předmět:
Zdroj: International Journal of Industrial Electronics, Control and Optimization, Vol 7, Iss 4, Pp 281-290 (2024)
Druh dokumentu: article
ISSN: 2645-3517
2645-3568
DOI: 10.22111/ieco.2024.48295.1548
Popis: — In this paper, a single switch transformer-less DC-DC converter with continuous input current for photovoltaic applications is proposed. The suggested configuration utilizes a CL1C2D2 structure to achieve a high voltage gain and alleviate voltage pressure on the semiconductor components. This design enables a significant increase in voltage output with a minimal turns ratio, leading to reduced size, weight, and cost of the converter system. The reduction in turns ratio of the coupled inductor results in lowered voltage stress on the semiconductor elements. Additionally, employing just one power switch in the converter simplifies control and reduces expenses. With its continuous input current, this converter is particularly well-suited for integration in photovoltaic systems. Simulation results conducted using PSCAD/EMTDC software validate the efficacy of the proposed power converter. Furthermore, the maximum power output of the photovoltaic module through an MPPT (Maximum Power Point Tracking) controller under varying irradiance levels is determined, and simulations are executed using PSCAD/EMTDC.
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