Projects

Solving a century old problem with a new physical approach to improve the efficiency and power density of inductors / transformers for power electronic converters.

Further information on core loss modelling  

In conventional electrical drive systems, the drive inverter and the electric motor are separate units. This project aims at integrating the drive  inverter into the electric motor to increase power density/efficiency of the electrical drive system.

Further information on integrated modular inverters

An accurate and computationally efficient model for calculating HF-losses in Litz wire caused by eddy current is important in converter design. Thanks to its accuracy and computational efficiency, a better converter design can be achieved.  

Further information on loss models for litz wire

High voltage pulse transformer-based solid-state pulse modulator: The modulator generates a precise high voltage pulse in the range of a few  μs with ultra-fast rise and settling times, and low overshoot as well as ripple.

Further information on high voltage pulse modulators

Dynamic membrane filtration offers higher long-term filtration fluxes due to self-cleaning effects induced by the rotation of the filter cartridge.  Bearingless motors enable a hermetically sealed plug-and-play system of the mechatronics from the processed fluids.

Further information on Bearingless Spinfilter

Plasma Pulse Geo Drilling (PPGD) utilises electrical discharges to create a plasma channel, efficiently fragmenting rocks. Therefore, high-voltage pulsed power generators are essential for generating the required plasma pulse.

Further information on Plasma Pulse Geo Drilling

The project explores the impact of MPC on power electronic systems. The interdisciplinary tasks range from optimal system design beyond traditional design limitations to real-time MPC implementations for unleashing the full potential of MPC in real-world applications.

Further information on Model Predictive Control (MPC) for Advanced Power Electronic Systems

Introduction of switching cell as an individual building block in the converter optimisation Multi-objective optimisation of switching cell’s mechanical layout based on analytical electromechanical models considering thermal and electromagnetic coupling effects.

Further informations on Electromechanical Modelling of Switching Cell

In medium- to high voltage applications the insulation design of the power electronic transformer becomes crucial. Precise models for the transient electric fields are developed to estimate the transformer insulation stress.

Further informations on Insulation Design of Medium Frequency Transformers
 

Designing highly efficiency electrical converter systems requires to optimally design the components of the converter system individually. To optimise magnetic components, analytical calculation models are developed, that are accurate and fast.

Further informations onAnalytical Multi-Physics modelling of (gapped) inductors

Development of accurate and computationally efficient loss models for wide bandgap semiconductors (SiC MOSFETs, GaN HEMTs). The loss models are used to optimally design power converters with high power density and efficiency.

Further Information on semiconductor loss models