Thrust Control of Long Primary Double-sided Linear Induction Motor Segmented in Parallel Fed by a Single Inverter
long primary double-sided linear induction motor， segmented in parallel， single inverter， secondary field-oriented control
Control methods for linear drives
Final Paper
Mingyuan Zhang / Institute of Electrical Engineering of the Chinese Academy of Sciences
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.
