The Evaluation of On-line Observer System of Linear Induction Motor Using a Transient FEM & Experiment for Sensorless Vector Control

센서리스 벡터 제어를 위한 과도 FEM & 실험을 이용한 선형 유도 전동기의 On-line 관측기시스템의 설계

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