Abstract
Abstract This paper proposes a novel analysis method on the driving performance of LIM (linear induction motor) by FEM (finite element method). First, a linear model was converted with a rotation model to perform the dynamic analysis for a long time. Through the FEM model, the slip parameter for the control algorithm could be induced effectively. The LIM for the traction system was performed at a constant V/f in the region of constant torque, and a constant V and variable f in the region of constant power. Several slip characteristic curves according to the voltageand frequency were calculated by FEM in advance. The driving performance was then induced by interpolating the slip characteristic curves according to the load of the vehicle. Key Words : Finite elements method, Linear induction motor, Slip curves, Voltage by Frequency control * Corresponding Author : Ki-Chan Kim(Hanbat National Univ.)Tel: +82-42-821-1090 email: kckim@hanbat.ac.krReceived February 21, 2014 Revised March 10, 2014 Accepted July 10, 2014
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