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| Content Provider | IET Digital Library |
|---|---|
| Author | An, Feng Song, Wensheng Yang, Kexin |
| Abstract | Dual-active-bridge (DAB) dc–dc converters are the important part of the transformerless electric traction drive system in railway application. Also the dynamic characteristic of DAB converters in the electric traction drive system is very significant under the input voltage fluctuation. In order to improve the efficiency and enhance the input voltage step response, a direct power control with current-stress-optimised (DPC-CSO) method based on unified phase-shift control for DAB converters is proposed in this study. Compared with traditional current-stress-optimised scheme, DPC-CSO scheme can reduce current stress of switching devices and improve efficiency further. Meanwhile, it can keep the output voltage constant when it faces with the input voltage step-change. In addition, only two voltage sensors are used in DPC-CSO scheme to reduce system cost. Finally, a scale-down DAB converter experimental platform is developed, and the experimental results have verified the excellent performance of the proposed DPC-CSO scheme and correctness of theoretical analysis. |
| Starting Page | 2180 |
| Ending Page | 2184 |
| Page Count | 5 |
| Volume Number | 2019 |
| e-ISSN | 20513305 |
| Issue Number | Issue 16, Mar (2019) |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/joe/conferences/cn-adc-2018 |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/joe.2018.8598 |
| Journal | The Journal of Engineering |
| Publisher | The Institution of Engineering and Technology |
| Publisher Date | 2018-10-26 |
| Access Restriction | Open |
| Rights License | Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0/) |
| Subject Keyword | Control of Electric Power System Current Stress Current-stress-optimised Method DAB Converter DC-DC Power Converter Direct Power Control DPC-CSO Scheme Dual-active-bridge Dc–dc Converters Input Voltage Fluctuation Output Voltage Power Control Power Converter Power Electronics Power Supplies to Apparatus Power Supply Scale-down DAB Converter Experimental Platform Supervisory Circuit System Cost Traditional Current-stress-optimised Scheme Transformerless Electric Traction Drive System Unified Phase Shift Control Unified Phase-shift Control Voltage Sonsor |
| Content Type | Text |
| Resource Type | Article |
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