Company Description:

The Delft University of Technology is a National Governmental Organisation, legally registered by the Dutch Law on Higher Education (October 1992). The Delft University of Technology is one of the world-wide leading universities focusing on fundamental and applied R&D to address various key society needs. The research mission of the department of Electrical Sustainable Energy (in Faculty of EEMCS) is to perform excellent research and education at an internationally recognized level in the field of electrical sustainable energy. The department consists of three groups: Photovoltaic materials and devices, Electrical Energy Conversion, DC systems and Storage and Intelligent Electrical Power Grid group. The DC systems, Energy Conversion and Storage Group, has a mission to perform excellent research and education in the integration of RES, electric mobility, ESS, DC networks and systems and future DC transmission grid. It consist of 4 full professors, 8 associate and assistant professors, 6 postdocs, 31 PhD students and researchers and 7 technicians.

Role and main tasks within the project:

Design and development of a 200kW EV charger based on wireless power transfer, will employ advanced power semiconductors such as SiC Mosfets, which will reach peak power conversion efficiency above 97% and reduce the weight and sizes of the power electronics by more than 20%.

Modelling and mitigation of harmonics and resonance of high power chargers connected to the weak grid (high grid impedance), especially when several high power chargers are connected into the same grid. The impact of different parameters, including the impedance and load of the grid, the hardware, in particular, the power filter, control, and operation point of the charger, etc., on the harmonics and resonance, will be taken into account. Grid friendly control strategies and power filter design will be experimentally verified to mitigate the harmonics and damp the resonance