Minimizing winding losses under trapezoidal current waveforms

Issue title: Proceedings of the tenth International Symposium on Applied Electromagnetics and Mechanics ISEM-Tokyo

Article type: Research Article

Authors: Vasiliu, M.^{a; *} | Moraru, A.^a | Hantila, F.^a

Affiliations: [a] Polytechnic University of Bucharest, Spl.Independentei 313, RO77206, Bucharest, Romania

Correspondence: [*] Corresponding author: Mihai Vasiliu, Tel.: +40 1 4111217; Fax: +40 1 4111217; E-mail: amv@elth.pub.ro

Abstract: Time-periodic non-sinusoidal solutions of the magnetic diffusion equation are expressible either in the form of time-harmonic series or as space eigenfunction series. Based on the latter, eddy-current losses in a multilayer winding carrying a trapezoidal current are evaluated. Optimum layer thickness is obtained by minimizing the resistance factor of the multilayer winding. Formulae for square and symmetrical triangular waveforms are also included.

DOI: 10.3233/JAE-2002-364

Journal: International Journal of Applied Electromagnetics and Mechanics, vol. 13, no. 1-4, pp. 405-410, 2002