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| Content Provider | IET Digital Library |
|---|---|
| Author | Federico, Ibanez Jose, Echeverria Luis, Fontan |
| Abstract | This study reviews the causes of power losses in a DC/DC converter, relates those losses with efficiency profiles, and details different strategies for maximising efficiency when several converters are placed in parallel. The research is focused on electric bus applications, where several converters are usually connected in parallel in order to fulfil the power requirements of the bus models. In a bus, the low-voltage DC link (28 V) resembles a microgrid that has some generators (DC/DC converters), an energy storage system (lead–acid batteries) and certain loads. To share the converters’ output power, a droop control is proposed. Furthermore, traditional droop control is improved by adding a master–slave control. The proposed master–slave droop control improves efficiency by more than 3% at low power with no additional hardware. Experimental results show how two 5 kW converters work in parallel using the proposed control. |
| Starting Page | 1156 |
| Ending Page | 1164 |
| Page Count | 9 |
| ISSN | 17554535 |
| Volume Number | 10 |
| e-ISSN | 17554543 |
| Issue Number | Issue 10, Aug (2017) |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/iet-pel/10/10 |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/iet-pel.2016.0590 |
| Journal | IET Power Electronics |
| Publisher Date | 2017-04-19 |
| Access Restriction | Open |
| Rights Holder | © The Institution of Engineering and Technology |
| Subject Keyword | Control of Electric Power System DC-DC Power Converter Distributed Power Generation Electric Bus Application Electric Vehicle Energy Storage Energy Storage System Lead Acid Batteries Lead-acid Batteries Low-voltage DC Link Master-slave DC Droop Control Microgrid System Paralleling Auxiliary DC-DC Converter Power 5 KW Power Grid Power Loss Transportation Transportation System Control Voltage 28 V |
| Content Type | Text |
| Resource Type | Article |
| Subject | Electrical and Electronic Engineering |
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