Structural analysis of electrical circuits including magnetoquasistatic devices
Structural analysis of electrical circuits including magnetoquasistatic devices
复制标题
包括磁准静态装置的电路结构分析
DOI:
10.1016/j.apnum.2011.08.004
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发表时间:
2011
影响因子:
2.8
通讯作者:
Schöps
中科院分区:
文献类型:
--
作者:
Bartel;Baumanns;Schöps
Modeling electric circuits that contain magnetoquasistatic (MQS) devices leads to a coupled system of differential-algebraic equations (DAEs). In our case, the MQS device is described by the eddy current problem being already discretized in space (via edge-elements). This yields a DAE with a properly stated leading term, which has to be solved in the time domain. We are interested in structural properties of this system, which are important for numerical integration. Applying a standard projection technique, we are able to deduce topological conditions such that the tractability index of the coupled problem does not exceed two. Although index-2, we can conclude that the numerical difficulties for this problem are not severe due to a linear dependency on index-2 variables.
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