Design of an on-line observer of LIM servo systems using transient FEM and experimentation for sensorless vector control

Issue title: Proceedings from the 16th International Symposium on Applied Electromagnetics and Mechanics (ISEM 2013)

Guest editors: Xavier Maldague and Toshiyuki Takagi

Article type: Research Article

Authors: Lee, Jung Ho^a | Kim, Young Hyun^{a; *}

Affiliations: [a] Hanbat National University, Daejeon, Korea | Université Laval, Canada | Tohoku University, Japan

Correspondence: [*] Corresponding author: Young Hyun Kim, Department of Electrical Engineering, Hanbat National University, Daejeon 305-719, Korea. E-mail: [email protected]

Abstract: This study deals with the dynamic characteristic analysis of a Linear Induction Motor (LIM), using a finite element method in which a moving mesh technique is considered. The focus of this paper is to show the suitability of an on-line observer system for position sensorless control of a LIM under phase asymmetry, saturation and iron loss. Comparisons are given both from the angle of the observer and that of the proposed FEA method of a linear induction motor. The position control system is realized, and the effectiveness of the observer system for the flux angle is verified by experimental results.

Keywords: LIM, FEM, observer system, sensorless vector control

DOI: 10.3233/JAE-141849

Journal: International Journal of Applied Electromagnetics and Mechanics, vol. 45, no. 1-4, pp. 337-344, 2014