Characteristics of Linear Induction Motor Considering Material of Reaction Plate Change

In this paper, a method of calculating the parameters of equivalent circuit model of linear induction motor(LIM) is proposed based on numerical analysis and finite element method(FEM). The method is proved accurately through the traditional removed and locked tests. Material change of reaction plate’s effect on how equivalent circuit’s parameters change and the influence on thrust and vertical force are analyzed through this method. The cosimulation of Maxwell and SIMULINK is analyzed. A control algorithm to compensate the effect of material change is presented. The compensation is based on equivalent circuit parameters variation and indirect vector control. Simulation results have shown the algorithm had good performances.