Vector Control Technology of Two-Phase Hybrid Stepping Motor Based on Current Loop PI Regulator

The stepper motor has the characteristics of simple control method, high torque at medium and low speed, and is widely used in the control of various automation equipment. The stepper motor generally adopts the open-loop control method. It mainly has disadvantages such as easy out-of-step when the load changes suddenly, and poor ability to adapt to the load. This paper proposes that the stepper motor adopts the vector control technology and the current loop PI regulator combined with the feed-forward decoupling control strategy to optimize the control technology of the stepper motor. Finally, the simulation research is carried out through MATLAB/Simulink and the simulation results show the superiority of its control strategy.