Abstract
In order to allow a sustainable energy future based on a large share of Distributed Generation (DG), there is a clear need to prepare the European electricity system for the large-scale integration of both renewable and other distributed energy sources. Advanced power electronic converters for DG will be needed to control the power flow and to ensure proper and secure operation of this future grid with an increased level of the renewable power. These power converters must be able to provide intelligent power management as well as ancillary services. This paper presents a short-circuit analysis of a multi-level H-bridge power converter for Universal and Flexible Power Management (UNIFLEX-PM) in Future Electricity Network. The analysis is made for two different control strategies, namely the stationary and the natural reference frame control. Selected simulation results are presented in order to compare the behavior of the two control strategies under various grid short-circuits.
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