The cross-entropy method and its application to minimize the ripple of magnetic levitation forces of a maglev system

Issue title: Selected Papers from the 14th International Symposium on Applied Electromagnetics and Mechanics (ISEM 2009), Part II

Article type: Research Article

Authors: Zhang, Wei^a | Yang, Shiyou^{a; *} | Bai, Yanan^a | Machado, José Márcio^b

Affiliations: [a] College of Electrical Engineering, Zhejiang University, Hangzhou, 310027, China | [b] São Paulo State University, São José do Rio Preto SP, 15054-000, Brazil

Correspondence: [*] Corresponding author. Fax: +86 571 8795 1625; E-mail: shiyouyang@yahoo.com

Abstract: This paper explores firstly the potential of a new evolutionary method – the Cross-Entropy (CE) method in solving continuous inverse electromagnetic problems. For this purpose, an adaptive updating formula for the smoothing parameter, some mutation operation, and a new termination criterion are proposed. The proposed CE based metaheuristics is applied to reduce the ripple of the magnetic levitation forces of a prototype Maglev system. The numerical results have shown that the ripple of the magnetic levitation forces of the prototype system is reduced significantly after the design optimization using the proposed algorithm.

Keywords: Cross-entropy method, global optimization, design optimization, evolutionary algorithm

DOI: 10.3233/JAE-2010-1221

Journal: International Journal of Applied Electromagnetics and Mechanics, vol. 33, no. 3-4, pp. 1063-1068, 2010