HyLeiT

In the HyLeiT joint project, research is being conducted into a new generation of electrolysis converters and electrical system technology for the energy supply of hydrogen electrolysis. The aim is to halve the system costs of electrical engineering from the grid connection point to the DC connection at the electrolyzer, taking into account associated operating costs and effects on H2 generation costs.  In addition, the impact of improved DC power quality on the electrolyzer will be investigated. The third goal is to improve AC power quality at the grid connection point and to be able to offer comprehensive grid service options. Integration into a 100 percent renewable energy grid and global applicability will be considered.

The focus of H-BRS is to identify power converter topologies for electrolyzers, characterize magnetic devices and semiconductor modules, and study electrolytic cells.

Through intensive topology research and simulation, the appropriate topology will be selected. On this basis, a demonstrator is to be developed and built up in the further course with the project partners.

For the characterization of the magnetic components, a calorimeter will be built at the H-BRS in order to be able to subsequently measure the magnetic components with regard to losses.

For the investigation of innovative semiconductor modules, H-BRS is building a switching cell for a double pulse test. Subsequently, the semiconductor modules are to be examined with regard to the switching behavior and the losses.

Another task package of the H-BRS is the development of a test current source for the current supply of an electrolysis cell. With its help, various harmonic currents are to be generated. This test current source is to be used to investigate the aging effects of different load and current profiles on the electrolysis cell.