Interest
My primary research interest is field/circuit coupling: electric circuits contain devices that exhibit different electromagnetic effects. Traditionally these devices are idealized and only one effect is considered, while the others are disregarded. This yields simple laws that mathematically express the transient behavior of those basic elements, but they do not conform to reality. So sometimes these elements are not accurate enough and one wants to replace a subset of elements by a refined model. My current research involves methods for the efficient coupling of those basic circuit elements and the refined field models, especially if different time constants occur, e.g., when the circuit is switching at a higher frequency than the field parts.Topics
- Numerical Time-Integration
- Differential Algebraic Equations (DAEs)
- Stiff Problems
- Computational Electromagnetics
- Finite Integration Technique (FIT)
- Finite Element's Method (FEM)
- Differential Forms
- Nonlinear Materials
- Coupling
- Co-Simulation
- Waveform-Relaxation
- Multirate Time-Integration
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