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Latency insertion method (LIM) for the fast transient simulation of large networks

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1 Author(s)
J. E. Schutt-Aine ; Dept. of Electr. & Comput. Eng., Illinois Univ., Urbana, IL, USA

In this work, a finite difference formulation is used to simulate large networks. The method makes use or introduces reactive latency in all branches and nodes of a circuit to generate update algorithms for the voltage and current quantities. A criterion is established that guarantees the stability of the algorithm for specified choices of the time step. Because of its linear numerical complexity, several orders of magnitude in speedup over matrix-based methods are obtained. Nonlinear networks can also be simulated by the formulation. Several comparisons are made with standard simulators in order to evaluate the accuracy and efficiency of the algorithm. In all cases that satisfy the stability criterion, good agreements with established techniques are obtained

Published in:

IEEE Transactions on Circuits and Systems I: Fundamental Theory and Applications  (Volume:48 ,  Issue: 1 )