A Fast Sparse Reluctance-and Capacitance-Based Solver for the Partial Element Equivalent Circuit Method

作者：Romano Daniele^*; Antonini Giulio; Daroui Danesh; Ekman Jonas

来源：IEEE Transactions on Electromagnetic Compatibility, 2014, 56(5): 1077-1086.

DOI：10.1109/TEMC.2014.2314715

• Acceleration techniques
• adaptive cross approximation
• fast solvers
• multiscale block decomposition
• partial element equivalent circuit (PEEC)
• reluctance method
• sparse multifrontal LU factorization
• time-domain methods

A new technique for the reluctance method applied to the partial element equivalent circuit method for the time-domain analysis is presented which is well suited to be combined with acceleration techniques. In particular, taking advantage of the rank deficiency of the magnetic and electric field couplings, a new technique for the sparsification of reluctance and capacitance matrices is adopted. Furthermore, the multiscale block decomposition technique has been applied to fast fill these matrices. Finally, the sparse multifrontal LU factorization has been adopted to efficiently compute the global solution. Numerical results demonstrate the validity of the proposed approach in terms of speedup and accuracy.

• 出版日期2014-10