中圖分類號：TP237+.4
文獻標志碼：A
DOI: 10.16157/j.issn.0258-7998.223114
中文引用格式： 劉兆春，胡昆. 基于(Δcos(?))?ΔI因子的步進電機驅(qū)動電流優(yōu)化控制研究[J]. 電子技術應用，2023，49(5)：88-93.
英文引用格式： Liu Zhaochun，Hu Kun. Research on optimal control of driving current of stepping motor based on the factor of(Δcos(?))?ΔI[J]. Application of Electronic Technique，2023，49(5)：88-93.

Research on optimal control of driving current of stepping motor based on the factor of (Δcos(?))?ΔI

Abstract： The traditional stepper motor controlled by pulse command has the characteristics of open-loop positioning without any position sensor. The disadvantage of open-loop control is that it is easy to lead to out of step when overload occurs. In order to reduce the probability of out of step, the stepper motor usually works with the maximum current, which will affect its working efficiency. To solve the above problems, a control algorithm based on the factor of (Δcos(?))?ΔI to optimize the driving current of the stepper motor has been proposed in this paper. The algorithm combines the characteristics of stepper motor and its pulse command, has strong applicability and simple calculation process, and doesn′t need to set additional mechanical or electrical parameters of the stepper motor. Using the measured data of hybrid stepper motor, data simulation experiments have been carried out to prove the effectiveness of the proposed algorithm.

Key words : stepper motor；driving current；optimal control