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A Versatile DC-DC Converter for Energy Collection and Distribution using the Modular Multilevel Converter
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| Author(s) |
Stephan KENZELMANN, Alfred RUFER, Michail VASILADIOTIS, Drazen DUJIC, Francisco CANALES, Yales DE NOVAES |
| Abstract |
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. |
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| Filename: | 0545-epe2011-full-22485013.pdf |
| Filesize: | 1.328 MB |
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| Type |
Members Only |
| Date |
Last modified 2012-01-26 by System |
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