LAPSE:2018.0884
Published Article
LAPSE:2018.0884
Buck Converter with Soft-Switching Cells for PV Panel Applications
Cheng-Tao Tsai, Wang-Min Chen
November 27, 2018
In power conversion of photovoltaic (PV) energy, a hard-switching buck converter always generates some disadvantages. For example, serious electromagnetic interference (EMI), high switching losses, and stresses on an active switch (metal-oxide-semiconductor-field-effect-transistor, MOSFET), and high reverse-recovery losses of a freewheeling diode result in low conversion efficiency. To release these disadvantages, a buck converter with soft-switching cells for PV panel applications is proposed. To create zero-voltage-switching (ZVS) features of the active switches, a simple active soft-switching cell with an inductor, a capacitor, and a MOSFET is incorporated into the proposed buck converter. Therefore, the switching losses and stresses of the active switches and EMI can be reduced significantly. To reduce reverse-recovery losses of a freewheeling diode, a simple passive soft-switching cell with a capacitor and two diodes is implemented. To verify the performance and the feasibility of the proposed buck converter with soft-switching cells for PV panel applications, a prototype soft-switching buck converter is built and implemented by using a maximum-power-point-tracking (MPPT) method. Simulated and experimental results are presented from a 100 W soft-switching buck converter for PV panel applications.
Keywords
electromagnetic interference (EMI), hard-switching, maximum-power-point-tracking (MPPT), metal-oxide-semiconductor-field-effect-transistor (MOSFET), soft-switching, zero-voltage-switching (ZVS)
Suggested Citation
Tsai CT, Chen WM. Buck Converter with Soft-Switching Cells for PV Panel Applications. (2018). LAPSE:2018.0884
Author Affiliations
Tsai CT: Department of Electrical Engineering, National Chin-Yi University of Technology, Taichung 41170, Taiwan
Chen WM: Department of Electrical Engineering, National Chin-Yi University of Technology, Taichung 41170, Taiwan
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Journal Name
Energies
Volume
9
Issue
3
Article Number
E148
Year
2016
Publication Date
2016-03-02
Published Version
ISSN
1996-1073
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PII: en9030148, Publication Type: Journal Article
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LAPSE:2018.0884
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doi:10.3390/en9030148
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Nov 27, 2018
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Nov 27, 2018
 
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Original Submitter
Calvin Tsay
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