Conference paper
Analysis and Comparison of Si and SiC Power Devices on a Grid-Tie Fuel Cell Energy Storage System
In renewable energy applications power conversion efficiency is major concern. This is especially true for grid-tie energy storage systems based on bidirectional dc-dc and dc-ac converters where power flows through these system components. Latest developments in power semiconductors technology signif- icantly reduced switching and conduction losses in dc-dc and dc-ac converters allowing efficiencies above 98%.
This paper analyzes the efficiency improvement that is achieved by the introduction of SiC power semiconductors in dc-dc and dc-ac converters. The analysis is focuses on fuel cell grid-tie energy storage systems. Results highlight dc-dc conversion efficiencies up to 98.2% with an isolated topology and dc-ac conversion efficiencies up to 97.7%.
Overall system efficiency improvements above 1% are achieved compared to traditional Si devices. Results on efficiency improvement are analyzed based on two laboratory converter prototypes of an isolated full bridge boost converter (IFBBC) and a three level T-type inverter (BSNPC)
| Language: | English |
|---|---|
| Publisher: | IEEE |
| Year: | 2014 |
| Pages: | 296-301 |
| Proceedings: | 2014 IEEE International Power Electronics and Application Conference and Exposition |
| ISBN: | 1479967688 , 1479967696 , 9781479967681 and 9781479967698 |
| Types: | Conference paper |
| DOI: | 10.1109/PEAC.2014.7037871 |
| ORCIDs: | Anthon, Alexander , Zhang, Zhe and Andersen, Michael A. E. |
