A Dual-Switch Coupled Inductor-Based High Step-Up DC-DC Converter for Photovoltaic-Based Renewable Energy Applications
This paper proposes a dual-switch DC-DC converter with high-voltage gain for solar Photovoltaic (PV) systems. High-voltage gain is obtained by combining the coupled inductor (CI) and switched-capacitor (SC) voltage boosting techniques. Combining CI and SC techniques, the design flexibility is increased, and low voltage stresses on the semiconductor devices are achieved, which leads to the adoption of low-voltage-rating semiconductor devices with low ON-state resistance resulting in low switching and conduction losses. Unlike the conventional boost converter, thanks to the existence of leakage inductance, the output diode turns off naturally in the proposed converter, which suppresses the reverse-recovery problem and losses. Operation principle and steady-state analysis are discussed to show the advantages of the proposed DC-DC converter. To verify the operation of the proposed converter, a performance comparison is provided. Moreover, the simulation of a 200 W converter with 20 V input and 400V output is carried out using PLECS Blockset.
R. Rahimi et al., "A Dual-Switch Coupled Inductor-Based High Step-Up DC-DC Converter for Photovoltaic-Based Renewable Energy Applications," Proceedings of the 2021 IEEE Texas Power and Energy Conference (2021, College Station, TX), article no. 9384916, Institute of Electrical and Electronics Engineers (IEEE), Feb 2021.
The definitive version is available at https://doi.org/10.1109/TPEC51183.2021.9384916
2021 IEEE Texas Power and Energy Conference, TPEC 2021 (2021: Feb. 2-5, College Station, TX)
Electrical and Computer Engineering
Keywords and Phrases
Coupled Inductor; Dual-Switch; High Gain; High Step-Up DC-DC Converter; Photovoltaic (PV); Renewable Energy; Switched-Capacitor
International Standard Book Number (ISBN)
Article - Conference proceedings
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05 Feb 2021