Abstract
The dual-primal finite element tearing and interconnecting (FETI-DP) method is applied together with the harmonic balance method and the fixed-point (FP) method to improve the efficiency of three-dimensional finite element analysis of large-scale nonlinear dynamic electromagnetic problems. The FETI-DP method decomposes the original problem into smaller subdomains problems. Combined with parallel computing techniques, the total computation time can be reduced significantly. To account for nonlinear B-H characteristics, the FP method is applied together with the polarization formulation. Because the FP method assumes a constant reluctivity, it decouples the systems of different harmonics. The FETI-DP method can then be applied to speed up the simulation of each harmonic in each FP iteration. Two benchmark problems and a three-phase inductor are simulated by the proposed method to validate the formulation and demonstrate its performance.
Original language | English (US) |
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Pages (from-to) | 166-180 |
Number of pages | 15 |
Journal | International Journal of Numerical Modelling: Electronic Networks, Devices and Fields |
Volume | 29 |
Issue number | 2 |
DOIs | |
State | Published - Mar 1 2016 |
Keywords
- FEA
- FETI-DP
- Nonlinear
ASJC Scopus subject areas
- Modeling and Simulation
- Computer Science Applications
- Electrical and Electronic Engineering