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| Content Provider | IET Digital Library |
|---|---|
| Author | Molavi, Navid Adib, Ehsan Farzanehfard, Hosein |
| Abstract | In this study, a novel soft-switched high step-up DC/DC converter is presented. This converter is suitable to be employed in photovoltaic and fuel cell systems. The proposed topology is based on coupled inductors and switched-capacitor techniques to provide high step-up gain. Also, due to high conversion ratio, and symmetrical structure of the proposed topology, the voltage stress of semiconductor elements is low; therefore, high performance metal–oxide–semiconductor field-effect transistors with low ON-resistance, and also low-voltage rating diodes can be utilised to reduce the circuit cost, conduction, and reverse-recovery losses which improve the converter efficiency and power density. Furthermore, by adopting an active clamp circuit, the stored energy in the leakage inductance of coupled inductors is recycled and zero-voltage-switching turn-on condition for both main and clamp switches are provided. Operating principle and steady-state analysis of the converter are discussed in detail. Finally, an experimental prototype of the proposed converter with 200 W output power is implemented which verifies the theoretical analysis. |
| Starting Page | 1711 |
| Ending Page | 1718 |
| Page Count | 8 |
| ISSN | 17554535 |
| Volume Number | 9 |
| e-ISSN | 17554543 |
| Issue Number | Issue 8, Jun (2016) |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/iet-pel/9/8 |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/iet-pel.2015.0870 |
| Journal | IET Power Electronics |
| Publisher Date | 2016-06-29 |
| Access Restriction | Open |
| Rights Holder | © The Institution of Engineering and Technology |
| Subject Keyword | Active Clamp Circuit Capacitor Switching Circuit Cost Reduction Clamp Switches Converter Efficiency Improvement Coupled Inductor DC-DC Power Converter Fuel Cell System High Performance Metal-oxide-semiconductor Field-effect Transistors High Step-up Gain Insulated Gate Field Effect Transistors Leakage Inductance Low-voltage Rating Diode Metal-Insulator-Semiconductor Structure MOS Capacitor Other Power Apparatus And Electric Machine Photovoltaic System Power 200 W Power Density Improvement Power MOSFET Power Semiconductor Device Reverse-recovery Loss Semiconductor Element Soft-switched Nonisolated High Step-up DC-DC Converter Steady-state Analysis Switch Switched-capacitor Technique Voltage Stress Reduction Zero Voltage Switching Zero-voltage-switching Turn-on Condition |
| Content Type | Text |
| Resource Type | Article |
| Subject | Electrical and Electronic Engineering |
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