The following overview represents a selection of bigger projects and studies that have been undertaken in the past years.
Commissioned by the Ministry of Economic Affairs of Brandenburg the chair carried out a first study concerning the integration of renewables into the grids of Brandenburg from 2006 to 2008. Due to the fast development, especially concerning photovoltaic, a follow-up study became necessary in order to update the results and statements. This second study for Brandenburg was done 2009 until 2011.
The extensive development of renewable energies along with their legal integration into the energy distribution system have created new challenges to assure the save operation of electro energy systems. Therefore, an academic system simulator for research and teaching activities has been installed at LS EVH to replicate the current situation at the grid control centers which is marked by an increasing pressure concerning its operations. The project was supported by 50Hertz Transmission GmbH and the German Research Foundation (DFG).
The central part of the simulator is a grid control system with a modular grid calculation that can continuously display physical grid activities. Here, up to 14 different "grid operators" (students) can practice a joint grid operation with the help of a virtual grid.
By increasing the amount of regenerative energy units, conventional generation plants are going to be less available to the grids. Thus, renewables have to provide ancillary services (SDL) that from a technical and operational point of view are necessary, such as balancing power to maintain frequency stability or reactive power to maintain voltage. How to provide or coordinate ancillary services to ensure safe operations within the power supply?
This question is dealt with in a study that was encouraged by the Ministry for Economic Affairs and Energy (MWE) of Brandenburg and partners of the expert forum “Grid Expansion”.
Here, BTU scientists are not only looking at the SDL topic in general but are also considering the necessary regulatory framework conditions. However, the focus of their work remains on technical reviews.