Simulation of direct thrust control for linear induction motor including end-effect

摘要

In this paper, a direct thrust control (DTC) of linear induction motor (LIM) has been developed and a comprehensive study is presented. DTC is a method based on primer flux control in the stationary reference frame using direct control of the inverter switching. The basic concept of DTC is to control both primer flux and electromagnetic thrust of the machine simultaneously. Modeling phase begins with a derivation of suitable mathematical model to describe LIM in the stationary α-β reference frame. Then, the concept of DTC based on switching table (ST-DTC) strategy is illustrated and dealt with in detail. Finally, the performance of this control method has been demonstrated by simulations performed using Matlab/Simulink and the results obtained from the simulations are discussed.