Abstract
The special design of linear induction machines (LIMs) leads to adverse effects caused by the longitudinal and end effects. These effects make the thrust control of the LIMs most attractive because its value decreases sharply with the speed increase. Thus, finite-state model predictive control (FS-MPC) is developed to increase the performance of the LIMs. However, the variable switching frequency is the main drawback of this control. Consequently, the main objectives of this paper are to propose FS-MPC with a constant switching frequency, directly control the linear speed, and overcome the problems resulting from the longitudinal and end effects. Therefore, the proposed FS-MPC is based on the thrust and primary flux linkage (TF) control concept. In addition, the end effect is considered during the modeling of the proposed control method. The proposed FS-MPTFC method has been tested under different working cases using MATLAB/Simulink to check its validity. Parameters of a 3 kW arc induction machine have been used during the simulation results.
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