Thrust Control of Long Primary Double-sided Linear Induction Motor Segmented in Parallel Fed by a Single Inverter

To reduce the thrust fluctuation of long primary double-sided linear induction motor (LP-DSLIM) segmented in parallel fed by a single inverter, a secondary field-oriented control strategy is proposed. First, the voltage and flux equations of a DSLIM module are presented. Then, the LP-DSLIM system segmented in parallel is analyzed, and the secondary flux linkage and thrust state equations of the system are developed. The control expressions of secondary flux linkage and thrust in the total secondary flux reference frame are derived. A total secondary field-oriented control strategy is proposed. Finally, the simulation results show that the proposed control strategy reduces the thrust fluctuation effectively.