Three-dimensional constrained optimization of modular toroid-type SMES using co-evolutionary algorithm

Article type: Research Article

Authors: Im, Chang-Hwan^{a; *} | Jung, Hyun-Kyo^a | Kim, Ji-Hoon^a | Hahn, Song-Yop^a | Hahn, Sung-Chin^b

Affiliations: [a] School of Electrical Engineering (ENG420-040), Seoul National University, San 56-1, Shillim-dong, Kwanak-gu, 151-742, Seoul, Korea | [b] Dong-A University, Pusan, 604-714, Korea

Correspondence: [*] Corresponding author: Tel.: +82 2 880 7262; Fax: +82 2 878 1452; E-mail: ichism@elecmech.snu.ac.kr

Abstract: In this paper, a modular toroid-type SMES was optimized using a recently developed constrained optimization technique named co-evolutionary augmented Lagrangian method (CEALM). The objective of the optimization was to minimize the total length of HTS superconductor satisfying some equality and inequality constraints. The constraints were calculated using 3-D magnetic field analysis techniques and an automatic tetrahedral mesh generator. Optimized results were verified by 3D finite element method (FEM).

Keywords: constrained optimization, co-evolutionary augmented lagrangian method (CEALM), finite element method (FEM), superconducting magnetic energy storage (SMES)

DOI: 10.3233/JAE-2004-299

Journal: International Journal of Applied Electromagnetics and Mechanics, vol. 20, no. 2, pp. 105-114, 2004