Sonderkolloquium: Prof. F. Briz, University of Oviedo, Spain
05.12.2014 von 10:30 bis 11:30
Institut für ET & IT, Kaiser Str. 2, Geb.C , Raum "Aquarium"
Titel: "Operation and control of MMCs using cells with power transfer capability"
Abstract:
"Cells in conventional Modular Multilevel Converters (MMC) designs use a capacitor for energy storage. This means that the net power balance for each cell needs to be equal to zero, the MCC realizing therefore a power transfer between its DC and AC sides. It is possible to use cells with the capability to transfer (inject or drain) power. The use of such cells opens several new functionalities and uses for the MMC, e.g.integration of distributed energy storage (e.g. batteries) orlow-voltage/low power sources (e.g. PV) and loads at the cell level.
Cells with power transfer capability can also be used connect themedium/high voltage DC and AC ports intrinsic to the MMC, with low voltage DC/AC ports at the cell level. This would result in multiportpower converters, potential applications of this topology includingsolid state transformers (SST)."