The integration of power generation from the fluctuating energy sources of the sun and wind into the energy supply system of the future will succeed thanks to the use of intelligent loads and the coupling of the electrical, heating and fuel sectors. The goal is to continuously adjust the consumption of electrical energy to match the power currently available from renewable energy sources as closely as possible at all times. This reduces the need for conventional power stations and expensive balancing power.
On the one hand, the term “smart grid” represents intelligent equipping of the power grid with systems that facilitate dynamic adjustments according to fluctuations in power generation. This is achieved by using storage and conversion systems between the electricity, heating and fuel sectors. On the other hand, the intelligent control of grid operating systems, loads and generators is a core task of modern energy grids. Such grids may serve as the basis for creating business models for the energy sector.
The local use of solar power can be increased and the grid load reduced with optimised operational management of the shiftable loads and electrical and thermal storage systems. In the field of grid integration, the potential for consuming self-generated power, the design of PV storage systems as well as intelligent algorithms for controlling storage systems and PV generators are being examined and verified in field tests.
Methods for distributing high proportions of solar power and for determining the expansion of photovoltaics in the distribution network at minimal cost are further areas being investigated in our research projects. Grid simulations and intelligent optimisation methods applied to real and typified distribution networks provide support here.