Design of Solar PV Powered Multistage Zeta Converter for Contemporary Applications
| International Journal of Electrical and Electronics Engineering |
| © 2025 by SSRG - IJEEE Journal |
| Volume 12 Issue 7 |
| Year of Publication : 2025 |
| Authors : Rajkumar M, A. Rathinam |
10.14445/23488379/IJEEE-V12I7P121
How to Cite?
Rajkumar M, A. Rathinam, "Design of Solar PV Powered Multistage Zeta Converter for Contemporary Applications," SSRG International Journal of Electrical and Electronics Engineering, vol. 12, no. 7, pp. 287-300, 2025. Crossref, https://doi.org/10.14445/23488379/IJEEE-V12I7P121
Abstract:
This study focuses on the detailed analysis of a multistage Zeta converter powered by renewable energy sources, controlled by the Incremental Conductance (INC) algorithm for Maximum Power Point Tracking (MPPT). The proposed three-stage Zeta converter incorporates two inductors and multiple switching stages to achieve an output voltage approximately 2.8 to 3 times greater than the input, without significantly increasing the size or number of passive components, as seen in conventional Zeta converters. The converter’s functionality in both buck and boost modes under incessant Conduction Mode (CCM) is analyzed. A complete scientific model is developed to assess the dynamic response of the converter across different operating conditions. The MPPT algorithm effectively tracks the PV array’s maximum power point under varying sunlight conditions, achieving a tracking efficiency of above 98.2% during testing. Simulations carried out in MATLAB/Simulink demonstrate that the proposed converter achieves a total efficiency of 91.6%, reduced voltage ripple, and superior transient performance when compared to conventional single-stage Zeta and SEPIC converters. To validate the simulation outcomes, a 200 W hardware prototype was constructed and verified. The investigational outcomes align closely with the simulation facts, confirming the reliability and robustness of the design for contemporary renewable energy uses, such as solar-powered charging stations, smart DC microgrids, and portable battery-operated devices.
Keywords:
Incremental Conductance, DC-DC converter, Multistage converter, Photovoltaic system, ZETA Converter.
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