Circuit simulation with a discontinous Galerkin based data-driven modified nodal analysis solver

Masterarbeit, Hiwi Stelle

An electrical circuit can be fully described through Kirchhoff's circuit laws and the employed lumped elements. Kirchhoff's circuit laws are directly derived from Maxwell's equations and thus considered to be exactly known. Contrarily, the behaviour of the lumped elements is at first only known through measurements. In conventional approaches, a model that fits best to the available measurement data must be derived. This is typically accomplished by means of empirical modeling approaches, which however cannot represent the elements' behaviour exactly, introduce epistemic uncertainties, and can be difficult to apply for sophisticated elements.

Data-driven solvers dispense with empirical models by solving the underlying problem directly on the measurement data instead.

Therefore, errors arising from the modelling process as well as epistemic uncertainties are avoided and the data-driven solutions can be considered as assumption-free.

The aim of this work is to develop a data-driven modified nodal analysis solver that employs a discontinuous Galerkin formulation to solve along the time scale.