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This paper introduces a new modular converter with integrated energy storage based on the cascaded half-bridge modular multilevel converter with common DC bus. It represents a complete modular solution with power electronics and energy storage building blocks, for medium and high voltage applications. Furthermore, this solution can interconnect a DC and AC grid with bidirectional power flow, where both of them can receive or generate excess power to the third source integrated in each converter sub-module. This particularity enables the converter usage as a high voltage UPS system in the future HVDC meshed grids. Its functionality and flexibility makes the converter independent on the energy storage unit characteristic. The converter concept with its basic functions and control schemes are described and evaluated in this paper.
|Title of host publication||Proceedings of the 37th Annual IEEE Conference of the Industrial Electronics Society, IECON 2011|
|Number of pages||6|
|Place of Publication||Melbourne, Australia|
|Publication status||Published - 2011|
|Event||37th Annual IEEE Conference of Industrial Electronics, IECON 2011 - Melbourne, Australia|
Duration: 7 Nov 2011 → 10 Nov 2011
|Conference||37th Annual IEEE Conference of Industrial Electronics, IECON 2011|
|Period||07/11/2011 → 10/11/2011|
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01/09/2008 → 31/08/2011