| Title |
Analysis of New Buck-Boost Converter with Multi-Mode for Photovoltaic MLPE |
| Authors |
Hee-Jun Lee ; Young-Hyok Ji ; Sang-Hun Park ; Myung-Ki Baek ; Sung-Ju Kim |
| DOI |
http://doi.org/10.5207/JIEIE.2024.38.3.181 |
| Keywords |
Buck-boost converter; MLPE(Module Level Power Electronics); Multi carrier-based PWM control; Photovoltaic power; Thermal analysis |
| Abstract |
This paper proposes a new buck-boost converter with multi-mode for photovoltaic MLPE(Module Level Power Electronics). The proposed converter consists of two SiC MOSFET switches, two Si diodes, an inductor, and an input/output capacitor. Control of the proposed converter has buck control, boost control, bypass control, and RSD control modes depending on the PV module status. the control of proposed converter operates using a multi-carrier PWM control method. The proposed control method has the advantage of being able to control modes without complex algorithms. Also, The design of the heatsink and component selection are crucial for reducing the size and weight of the MLPE system. In this paper, proposed converter is verified through an simulation about operation and thermal analysis. |