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Comparison of different optimization strategies in the design of electromagnetic devices

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5 Author(s)
Preis, K. ; Graz Univ. of Technol., Austria ; Biro, O. ; Friedrich, M. ; Gottvald, A.
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Both higher-order deterministic optimization methods (steepest-descent, conjugate gradient, quasi-Newton) and zeroth-order stochastic optimization methods (( mu + lambda )-evolution strategy) have been tested for designing electromagnetic devices. The underlying field analyses have involved the finite element method in 2-D and 3-D, both linear and nonlinear. Numerical experiments indicate some preference for the ( mu + lambda )-evolution strategy not only because of its robustness and generality, but also its speed of convergence.

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Magnetics, IEEE Transactions on  (Volume:27 ,  Issue: 5 )