Abstract

The double Y shift 3 0 PMSM two-motor series-connected system is a novel multi-machines system, which PMSM1 operates on d q plane and PMSM2 operates on 1 2 z z plane. To overcome the poor robustness and static and dynamic performances of PI controller, the backstepping control approach suitable for the two-motor series-connected system is researched. And the backstepping controller of PMSM1 is deduced on d q plane. The simulation contrasting with PI controller show that backstepping can realize the decouple control of the two series-connected motors and improve the dynamic and static performances.

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