Abstract
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)
Original language | English |
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Title of host publication | Proceedings of IEEE International Power Electronics and Application Conference and Exposition |
Publisher | IEEE |
Publication date | 2014 |
Pages | 296-301 |
ISBN (Print) | 978-1-4799-6768-1 |
DOIs | |
Publication status | Published - 2014 |
Event | 2014 IEEE International Power Electronics and Application Conference and Exposition - Holiday Inn Shanghai Pudong Kangqiao, Shanghai, China Duration: 5 Nov 2014 → 8 Nov 2014 |
Conference
Conference | 2014 IEEE International Power Electronics and Application Conference and Exposition |
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Location | Holiday Inn Shanghai Pudong Kangqiao |
Country/Territory | China |
City | Shanghai |
Period | 05/11/2014 → 08/11/2014 |
Keywords
- Silicon carbide (SiC)
- Energy storage
- Power Semiconductors
- dc-dc converter
- dc-ac converter