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Design and simulation of a four-port buck-boost converter integrated with a PID controller for solar power systems M. S. Mukundaswamy; Smitha Elsa Peter
International Journal of Power Electronics and Drive Systems (IJPEDS) Vol 17, No 3: September 2026
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijpeds.v17.i3.pp1859-1872

Abstract

This manuscript proposes a bidirectional four-port buck-boost converter for integrating renewable energy sources into a DC microgrid. The proposed topology utilizes a reduced number of components compared to conventional bidirectional multi-port converters, leading to enhanced efficiency and compactness. The converter incorporates bidirectional battery and DC-link ports, making it well-suited for DC microgrid applications that demand coordinated system-level power management. It is capable of interfacing simultaneously with a wind turbine, photovoltaic (PV) panel, battery bank, and DC load. Zero-voltage switching (ZVS) is achieved under steady-state operating conditions, while the converter’s dynamic performance is assessed during transient variations in energy sources and load conditions. The efficacy of the proposed method is validated through MATLAB/Simulink simulations.