Autor: |
Kenzelmann, S., Alfred Rufer, Vasiladiotis, M., Dujic, D., Canales, F., Novaes, Y. R. |
Předmět: |
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Zdroj: |
Scopus-Elsevier |
Popis: |
The drawbacks of conventional Modular Multilevel Converters (MMC) are described in terms of short-circuits. The configuration of MMC-transformer-MMC proves to handle short-circuits at the input and output without the need for additional DC or AC circuit breakers for protection. The transformer can be operated with a higher frequency, reducing therefore the size of the transformer and the capacitors considerably. A multitude of input and output configurations are possible, AC/AC, AC/DC and DC/DC. In particular a DC/DC structure is analysed, serving as DC circuit breaker and voltage elevation interface at the same time. The control strategy of the DC/DC converter is described and an experimental prototype validates the proposed structure and control. |
Databáze: |
OpenAIRE |
Externí odkaz: |
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