Multirate Coupling of Controlled Rectifier and Non-Linear Finite Element Model Based on Waveform Relaxation Method

Pierquin, Antoine; Henneron, Thomas; Brisset, S.; Clénet, S.

doi:10.1109/tmag.2015.2489762

Cited by 3 publications

(1 citation statement)

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“…As was investigated before [1,2,3], the voltageimpedance transmission coupling conditions (VZ-TCCs) converge very fast than the current-voltage conditions (VI-TCCs). The current-voltage transmission coupling conditions can be improved by introducing more sophisticated optimized transmission coupling conditions (OTCCs).…”

Section: Introductionmentioning

confidence: 84%

High Order Relaxation Methods for Co-simulation of Finite Element and Circuit Solvers

Nshimiyimana

Plumier

Ndagije

et al. 2020

AEM

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Coupled problems result in very stiff problems whose char- acteristic parameters differ with several orders in magni- tude. For such complex problems, solving them monolithi- cally becomes prohibitive. Since nowadays there are op- timized solvers for particular problems, solving uncoupled problems becomes easy since each can be solved indepen- dently with its dedicated optimized tools. Therefore the co-simulation of the sub-problems solvers is encouraged. The design of the transmission coupling conditions between solvers plays a fundamental role. The current paper ap- plies the waveform relaxation methods for co-simulation of the finite element and circuit solvers by also investigating the contribution of higher order integration methods. The method is illustrated on a coupled finite element inductor and a boost converter and focuses on the comparison of the transmission coupling conditions based on the waveform iteration numbers between the two sub-solvers. We demon- strate that for lightly coupled systems the dynamic iterations between the sub-solvers depends much on the inter- nal integrators in individual sub-solvers whereas for tightly coupled systems it depends also to the kind of transmission coupling conditions.

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Section: Introductionmentioning

confidence: 84%