Modelling and computation of nonlinear magnetic fields in linear step motors by finite element method

Conference · Mon Oct 31 23:00:00 EST 1994 · IEEE Transactions on Magnetics (Institute of Electrical and Electronics Engineers); (United States)

OSTI ID:6673156

Khan, S H ^[1]; Ivanov, A A ^[2]

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1. City Univ., London (United Kingdom). Dept. of Electrical, Electronic and Information Engineering
2. St. Petersburg State Technical Univ. (Russian Federation)

This paper describes the implementation of finite element method (FEM) for modeling and computation of magnetic fields in cylindrical passive armature linear step motors (LSM) used in control rod drives of nuclear reactors. The 2D nonlinear axisymmetric magnetic field is simulated using dedicated finite element (FE) package developed for CAD and performance evaluation of such motors. Various aspects of FE modeling in complex geometry of LSM are discussed. Results are presented in terms of field plots and electromagnetic force versus armature position curves (static characteristics) of the industrial prototype of a LSM. Some of the results are compared with experimental data which show satisfactory agreement.

• OSTI ID: 6673156
• Report Number(s): CONF-940629--
• Journal Information: IEEE Transactions on Magnetics (Institute of Electrical and Electronics Engineers); (United States), Journal Name: IEEE Transactions on Magnetics (Institute of Electrical and Electronics Engineers); (United States) Vol. 30:6Pt1; ISSN IEMGAQ; ISSN 0018-9464
• Country of Publication: United States
• Language: English

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