Design and Simulation of Five Level Buck Boost Converter for Grid Connected Hybrid Power System using Matlab/Simulink

• Published in: 2023 5th International Conference on Smart Systems and Inventive Technology (ICSSIT) pp. 371 - 376
• Main Authors: Shri Harsha, J, Shamala, N, Kumar, L Sanjeev, Prakash, R
• Format: Conference Proceeding
• Language: English
• Published: IEEE 23-01-2023
• Subjects: multilevel buck-boost converter; PI control; Software packages; Switches; Switching frequency; Topology; Transformers; Very large scale integration; voltage multiplier; voltage-lift switched inductor (VLSI) cell
• ISSN: 2832-3017
• DOI: 10.1109/ICSSIT55814.2023.10061069

This research describes a revolutionary voltage-lift switched inductor (VLSI) cell-based high step-up DC-DC multilevel buck-boost converter. Cascade of traditional DC-DC converters is not a workable solution to reach high conversion ratio. In this study, a VLSI cell is used to improve the multilevel buck-boost converter's boost capabilities. The suggested DC-DC multilevel topology's key benefit is that it achieves large conversion ratios without the use of coupled inductors, transformers, or high duty cycles. The 200W-rated buck-boost multilevel converter that is being suggested has three stages and a 220V output voltage. The duty cycle is 70%, the switching frequency is 50 kHz, and the input supply voltage is 12 V.