Terminal current interpolation for multirate time integration of hierarchical IC models

A. Verhoeven, E.J.W. Maten, ter, J.J. Dohmen, B. Tasic, R.M.M. Mattheij

Onderzoeksoutput: Hoofdstuk in Boek/Rapport/CongresprocedureConferentiebijdrageAcademicpeer review


Multirate time-integration methods [3–5] appear to be attractive for initial value problems for DAEs with latency or multirate behaviour. Latency means that parts of the circuit are constant or slowly time-varying during a certain time interval, while multirate behaviour means that some variables are slowly time-varying compared to other variables. In both cases, it would be attractive to integrate these slow parts with a larger timestep than the other parts. This saves the computational workload while the accuracy is preserved. A nice property of multirate is that it does not use any linear structure, in contrast to MOR, but only a relaxation concept. If the coupling is sufficiently monitored and the partitioning is well chosen, multirate can be very efficient.
Originele taal-2Engels
TitelProgress in Industrial Mathematics at ECMI 2008
RedacteurenA.D. Fitt, J. Norbury, H. Ockendon, E. Wilson
Plaats van productieBerlin
ISBN van geprinte versie978-030642-12109-8
StatusGepubliceerd - 2010

Publicatie series

NaamMathematics in Industry
ISSN van geprinte versie1612-3956


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