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.
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.
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.
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.
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.
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.
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
The WPT Joint will enable frictionless and maintenance-free wireless power as well as wireless data transfer across rotating joints. This technology is especially interesting for electrical (battery-driven) excavators.
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