Lappeenranta University of Technology (LUT) is a pioneering scientific university, and has brought together the fields of science and business since 1969. Our international community comprises around approximately 6,500 students and experts engaged in scientific research and academic education. Our strength lies in the way we work together across scientific and departmental boundaries. We are constantly establishing networks in both the business and the academic community.
LUT is the most important university in the energy sector with a 40 per cent market share. The expertise we have acquired in the field of energy is reflected in our Green Campus, which represents a unique research and study environment.
LUT has a tradition of strong links with the business community, and has been ranked “best in business technology cooperation” by the Finnish business and economy publication “Talouselämä . We promote business generated by scientific research. This is demonstrated by the existence of the university’s own investment company, Lureco, which supports LUT’s research-based start-up companies.
We focus our expertise on three key strategic priorities: green energy and technology, sustainable value creation and our role as a hub of international relations with Russia.
The Department of Electrical Engineering at LUT has been working in the field of power electronics and the application thereof for over 15 years. Most research projects are carried out in cooperation with industrial partners, and are therefore characterized by strong emphasis on practical scenarios and economic issues.
LUT has been conducting research into fuel cell power electronics since 2007. 2011 saw LUT implement the electric grid connection hardware for a 10 kW SOFC stack at VTT. The power converter prototype was successfully used in connection with the long-term testing of the fuel cell plant.
Role in project
LUT will be responsible for research into power electronics.
An example structure of a fuel cell power conversion unit (PCU) is shown in the figure below. The PCU converts the DC voltage produced by the fuel cell into AC voltage that can be fed to the electrical grid.
The purpose of the research is to optimize the DC/AC conversion chain in terms of efficiency and cost while taking the fuel cell characteristics into account. The new semiconductor materials such as silicon carbide and gallium nitride can enable smaller and more efficient converters due to higher switching frequencies and smaller switching losses.
ContactsDr Vesa Väisänen Lappeenranta University of Technology LUT Energy; Department of Electrical Engineering; Finland