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| Content Provider | IET Digital Library |
|---|---|
| Author | Wen, Huiqing Su, Bin Xiao, Weidong |
| Abstract | This study describes the design and performance evaluation of a bidirectional isolated dc–dc converter with an extended dual-phase-shift (EDPS) scheme. The operation principle and equivalent circuits with consideration of the deadband are presented. The deadband effect with EDPS is different from the conventional phase-shift (CPS) scheme, and the corresponding compensation coefficient is determined. Different operation modes are identified with respect to phase-shift angles of EDPS and load conditions. The safe operational area is also analysed with the comparison of different operation modes. The output voltage and output power characteristics with open-loop or closed-loop operation are discussed. The average theoretical 48.5% reduction in the output voltage ripple using EDPS has been achieved. The average reduction in inductor peak and rms with EDPS are statistically calculated as 37.8 and 26.8%. The measured efficiency has improved from 68.1% using CPS to 81.9% using EDPS for low-power application. |
| Starting Page | 914 |
| Ending Page | 924 |
| Page Count | 11 |
| ISSN | 17554535 |
| Volume Number | 6 |
| e-ISSN | 17554543 |
| Issue Number | Issue 5, May (2013) |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/iet-pel/6/5 |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/iet-pel.2012.0545 |
| Journal | IET Power Electronics |
| Access Restriction | Open |
| Rights Holder | © The Institution of Engineering and Technology |
| Subject Keyword | Bidirectional Isolated Dc-dc Converter Closed-loop Operation Compensation Compensation Coefficient CPS Scheme DC-DC Power Converter EDPS Scheme Equivalent Circuit Extended Dual-phase-shift Scheme Load Condition Low Power Electronics Open-loop Operation Output Power Characteristic Output Voltage Ripple Phase-shift Angles Power Electronics Power Supply Safe Operational Area Supervisory Circuit |
| Content Type | Text |
| Resource Type | Article |
| Subject | Electrical and Electronic Engineering |
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