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arXiv 2005.13272math.NAcs.CEcs.NA
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指数为2的低频场路耦合微分代数模型的波形松弛

Waveform relaxation for low frequency coupled field/circuit differential-algebraic models of index 2

Idoia Cortes Garcia, Jonas Pade, Sebastian Schöps, Caren Tischendorf

摘要:

基于粒子加速器中超导磁体失超保护系统的设计任务,本文提出了一种基于准静态磁场模型的场路耦合仿真方法。我们研究如何进行耦合模拟时,电路求解包,描述电路的修改节点分析的高斯-赛德尔型波形松弛。我们提出了充分的收敛准则的有限元离散场模型和电路模型形成的微分-代数方程(DAE)系统的指数2的耦合模拟。特别是,我们证明了一个简单的基准系统的电路拓扑结构的耦合模拟的收敛行为的剧烈影响。

英文摘要:

Motivated by the task to design quench protection systems for superconducting magnets in particle accelerators we address a coupled field/circuit simulation based on a magneto-quasistatic field modeling. We investigate how a waveform relaxation of Gauß-Seidel type performs for a coupled simulation when circuit solving packages are used that describe the circuit by the modified nodal analysis. We present sufficient convergence criteria for the coupled simulation of FEM discretised field models and circuit models formed by a differential-algebraic equation (DAE) system of index 2. In particular, we demonstrate by a simple benchmark system the drastic influence of the circuit topology on the convergence behavior of the coupled simulation.

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