We present a new model order reduction technique for electrically large systems with delay elements, which can be modeled by means of neutral delayed differential equations. An adaptive multipoint expansion and model order reduction of equivalent first order systems are combined in the new proposed method that preserves the neutral delayed differential formulation. An adaptive algorithm to select the expansion points is presented. The proposed model order reduction technique is validated by pertinent numerical results. A comparison with a previous model order reduction algorithm based on a single point expansion is performed to show the considerably improved modeling capability of the new proposed technique.

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Keywords Delayed Partial Element Equivalent Circuit method, Model order reduction, Neutral delayed differential equations
Persistent URL dx.doi.org/10.1109/ISEMC.2011.6038317
Conference 2011 IEEE International Symposium on Electromagnetic Compatibility, EMC 2011
Ferranti, F. (Francesco), Nakhla, M.S, Antonini, G. (Giulio), Dhaene, T. (Tom), Knockaert, L. (Luc), & Ruehli, A.E. (Albert E.). (2011). Multipoint model order reduction of delayed PEEC systems. In IEEE International Symposium on Electromagnetic Compatibility (pp. 243–248). doi:10.1109/ISEMC.2011.6038317