Speed Loop Control Strategy Of PMLSM Considering Saturation

The subject of this article is the permanent magnetic linear synchronous motor. Motor control system with saturation limiter for both speed loop and current loop, for the system instability and limit cycle oscillation problems generated within a reasonable range of parameters. The key is to suppress the saturation of the speed loop, based on the extended state observer, and propose an improved speed loop anti-windup control strategy. Added the magnitude and rate saturation model to the control system to design a dual anti-windup structure to suppress the instability and the limit cycle oscillation of the system.