Abstract
This paper proposes a high step-up DC-DC converter with a built-in transformer (BIT)-based voltage multiplier (VM) that is suitable for integrating low-voltage renewable energy sources into a DC microgrid. A three-winding BIT is combined with the switched-capacitor (SC) cells to extend the voltage gain and reduce the voltage stress on the switches. The current-falling rates of the diodes are controlled by the leakage inductances of the BIT, alleviating the reverse-recovery problem of the diodes. The operating modes and steady-state analysis are presented. Additionally, the validity of the proposed converter is confirmed by the simulation and experimental results of a 400 W converter with an input voltage of 20 V and output voltage of 400 V. Moreover, a comparison study is presented to verify the superiority of the proposed converter over the closest existing topologies in the literature.
Recommended Citation
R. Rahimi et al., "An Interleaved High Step-Up DC-DC Converter with Built-In Transformer-Based Voltage Multiplier for DC Microgrid Applications," Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC, pp. 86 - 92, Institute of Electrical and Electronics Engineers, Jan 2022.
The definitive version is available at https://doi.org/10.1109/APEC43599.2022.9773671
Department(s)
Electrical and Computer Engineering
Keywords and Phrases
DC microgrid; fuel cell (FC); high-voltage gain; Interleaved high step-up DC-DC converter; photovoltaic (PV); renewable energy; switched-capacitor (SC) cell; voltage multiplier (VM)
Document Type
Article - Conference proceedings
Document Version
Final Version
File Type
text
Language(s)
English
Rights
© 2023 Institute of Electrical and Electronics Engineers, All rights reserved.
Publication Date
01 Jan 2022
