Industrial Informatics DG DemoNet-Concept- A new Algorithm for active Distribution Grid Operation facilitating high DG penetration

Abstract—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 expensive grid reinforcements, new solutions for active grid operation will be necessary. This paper introduces a set of innovative technical measures that allow a higher DG penetration within the grid. A new control algorithm for coordinated voltage control in an active distribution grid featuring these measures is proposed. Simulation results for an application of the algorithm in an actual Austrian distribution grid segment are presented. I

Status quo of Distributed Generation, future trends and recommendations for active Distribution Grid Operation in Austria

Abstract. While distributed generation (DG) from renewable energy resources is seen as a key element of future energy supply, current electricity grids are not designed to integrate a steadily increasing share of distributed generators. In order to avoid excessively expensive grid reinforcements, new solutions for active grid operation have to be found. Therefore, this paper introduces new promising and innovative technical solutions for active distribution grid operation combined with tailor made communication infrastructure designs. These IT-solutions evaluated (radio links and fibre optic) demonstrate in a first stage the technical and economical feasibility for a specific DG grid integration case study, which is prepared within an ongoing Austrian research project. The lessons learnt show that the high security and reliability standards set by the distribution grid operators significantly reduce the quantity of available communication options and therefore boost resulting cost to their upper limits. This work was carried out and financed within the scope of th