Andreas Lugmaier

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While distributed generation (DG) from renewable energy resources is seen as key element of future energy supply, current electricity grids are not designed to integrate a steadily increasing share of distributed generators. The hierarchical network topology was designed for unidirectional power flows and passive operation. In order to avoid excessively(More)
The subject of this paper is to describe the method newly developed within the research project ISOLVES (Innovative Solutions to Optimize LV Electricity Systems). The objectives are to study LV grids in detail and to close gaps of knowledge about impacts on voltage levels caused by asymmetric load or feed, and real grounding systems. Therefore a smart(More)
The advance of Smart Grid concepts towards lower-voltage layers of the electricity grid connects an enormous number of devices, many of them through legacy automation protocols, to back-end IT systems. With many of these devices giving little or no indication as to the semantics of their data, it is customary to manually engineer this information, which is(More)
In order to compare the impact of passive (like network restructuring) or active (like on-load-tap-changer) grid management measures a novel tool was developed, which performs specific load flow benchmarks tests using synthetic daily load and infeed profiles. In this paper first preliminary results of the analysis of a real urban medium voltage distribution(More)
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