Large-scale Renewable Electricity Generation and Grid Integration

Large-scale integration of renewable electricity, with increasing shares of intermittent generation, presents new challenges for transmission networks to guarantee reliability and power quality.

In the short term problems being discussed in collaborations are to expand the use of biomass-based thermal power using difficult fuels, while increasing efficiencies and expanding wind power with improved integration and efficiency. Policy measures to support the introduction are also of vital importance A parallel challenge is to provide an electric power system with flexible and reliable solutions for the large-scale introduction of intermittent and more controllable electricity generation and consumption. This challenge must to go hand in hand with a maintained and possibly improved level of power system reliability, new operating conditions for hydro power, and stricter requirements regarding demand side management with distributed storage facilities (e.g. plug-in hybrid electric vehicles) to balance electricity generation and demand.

Research packages

To meet these challenges, we will strengthen and expand expertise within:
Electricity generation with focus on wind integration and biomass thermal power, and on Electric power systems involving high voltage components, electricity grid and system perspective.

Power generation system and transmission network

We will develop methods that can analyze large scale integration of renewable energy in the power generation systems and transmission systems under different assumptions of reduction targets in CO2 emissions and amount of renewable energy with security of supply and competitiveness considerations.

Wind power and grid integration

We will develop methods to find the most cost-efficient solutions for the design and planning of wind turbines and farms and to connect wind power to the electric power grid to increase availability and robustness, decrease maintenance costs and increase security of supply. The latter involves:
  • developing generators/converters for ride through capability
  • analysis of transient behavior
  • development of DC-based systems
  • development of mathematical optimization models for scheduling maintenance operations with respect to intermittent electricity generation
  • developing analysis methods for high penetration of wind power in local and regional grids and the connection to the transmission network, AC as well as DC
  • Biomass thermal power generation - the work is integrated in the ‘Thermal conversion of biomass’ within Energy Combines.

Materials and diagnostics for high voltage networks

Develop reliable, environmentally friendly and safe components of power networks for outdoor installations, hybrid gas insulated systems, cables and transformers,
Development of online diagnostic methods to continuously control and communicate information on quality status of electric network components.

Power system and transmission

To develop multidisciplinary research on smart power systems by drawing on available expertise in power system engineering, with the new professorship emphasizing power system reliability and maintenance as well as expertise in control and optimization.
The overall idea is to develop improved methods for design and operation of the grid in order to meet the new challenges presented by increased renewable power generation.  

Biomass thermal power generation

The work is integrated in the ‘Thermal conversion of biomass’ within Energy Combines.



Research Area Manager


Published: Thu 03 May 2012. Modified: Thu 05 Sep 2013