Recent results in solving index 2 differential-algebraic equations in circuit simulation
März, Roswitha
Tischendorf, Caren
In electric circuit simulation the charge oriented modified nodal analysis may lead to highly nonlinear DAEs with low smoothness properties. They may have index 2 but they do not belong to the class of Hessenberg form systems that are well understood. In the present paper, on the background of a detailed analysis of the resulting structure, it is shown that charge oriented modified nodal analysis yields the same index as the classical modified nodal analysis. Moreover, for index 2 DAEs in the charge oriented case, a further careful analysis with respect to solvability, linearization and numerical integration is given.
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Is Part Of Series: Preprints aus dem Institut für Mathematik - 4, Mathematik-Preprints, ISSN:0863-0976
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