In this article, we evaluate the modeling of a real operation of a real system using the
corresponding adequate theory. We show that the smart theories often used do not directly …

Simulating the transient effects occurring in superconducting accelerator magnet circuits
requires including the mutual electro-thermo-dynamic interaction among the circuit …

Differential equations arising in many practical applications are characterized by multiple
time scales. Multirate time integration seeks to solve them efficiently by discretizing each …

Coupled systems of differential-algebraic equations (DAEs) may suffer from instabilities
during a dynamic iteration. We extend the existing analysis on recursion estimates, error …

Superconducting accelerator magnets require sophisticated monitoring and means of
protection due to the large energy stored in the magnetic field. Numerical simulations play a …

The magnetoquasistatic simulation of large power converters, in particular transformers,
requires efficient models for their foils windings by means of homogenization techniques …

This thesis is dedicated to the modelling and numerical treatment of electromagnetic
phenomena governed by (nonlinear) field and circuit equations, which are the fundamental …

This paper discusses the weak coupling of nonlinear magnetoquasistatic field models (eg, of
induction motors) to an external electric network model (eg, of frequency converters). A …

Dynamic simulation of superconducting magnets is critical for the design of quench
protection systems to prevent potentially damaging temperatures and high voltage from …

In this paper, multirate partial differential equations (MPDEs) are used for the efficient
simulation of problems with two-level pulsed excitations as they often occur in power …