Ohsenbrügge, AnjaPage, BerndFleischer, Andreas G.Göbel, JohannesWohlgemuth, Volker2019-09-162019-09-162013https://dl.gi.de/handle/20.500.12116/25851The nuclear phase-out and the increased share of renewable distributed generation implicate new challenges for transforming the electric power system into an environmentally sustainable, reliable and cost-efficient system. An important component in transforming the electric power system is the reliable substitution of large controllable power plants by small generation units (photovoltaic systems, wind energy converters and combined heat and power plants (CHP)) without impairing the overall safety and quality of the energy supply. In particular, the process of control reserve and balancing power to cover power plant or prognosis faults has to be adapted to today s complex decentralized structure. This complexity both includes the factors of influence on the reserve dimensioning and the certifiable level of reliability for its provision. The aim of this paper is to develop a dynamic strategy for reserve and reliability that factors in these altered circumstances, in particular the provision of ancillary services by decentralized self-organized coalitions of small active units.Text/Conference Paper