3D Transient Analysis of Linear Induction Motor Using the New Equivalent Magnetic Circuit Network Method

  • Jin Hur (Precision Machinery Research Center, Korea Electronic Technology Institute (KETI)) ;
  • Kang, Gyu-Hong (Dept. of Electrical and Electronic Engineering, Changwon National University) ;
  • Hong, Jung-Pyo (Dept. of Electrical and Electronic Engineering, Changwon National University)
  • Published : 2003.09.01


This paper presents a new time-stepping 3-D analysis method coupled with an external circuit with motion equation for dynamic transient analysis of induction machines. In this method, the magneto-motive force (MMF) generated by induced current is modeled as a passive source in the magnetic equivalent network. So, by using only scalar potential at each node, the method is able to analyze induction machines with faster computation time and less memory requirement than conventional numerical methods. Also, this method is capable of modeling the movement of the mover without the need for re-meshing and analyzing the time harmonics for dynamic characteristics. From comparisons between the results of the analysis and the experiments, it is verified that the proposed method is capable of estimating the torque, harmonic field, etc. as a function of time with superior accuracy.


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