混合式步进电机三矢量模型预测电流控制  

Hybrid Stepper Motor Three-vector Model Predictive Current Control

作　　者：朱文龙 许宇翔 邵桓 赵月鹏 魏邦阳 ZHU Wenlong;XU Yuxiang;SHAO Huan;ZHAO Yuepeng;WEI Bangyang(School of Engineering,Huzhou University,Huzhou Zhejiang 313000,China;School of Intelligent Manufacturing,Huzhou College,Huzhou Zhejiang 313000,China)

机构地区：[1]湖州师范学院工学院,浙江湖州313000 [2]湖州学院智能制造学院,浙江湖州313000

出　　处：《微电机》2025年第2期75-79,共5页Micromotors

基　　金：浙江省自然科学基金资助项目(LY19F030002);湖州市科技特派员项目(工业)(2023KT65)。

摘　　要：混合式步进电机的径向磁场变化的平滑性和连续性较差,会产生较大的电流脉动,传统混合式步进电机双闭环控制系统使用的空间矢量脉宽调制,其电流环使用PI调节器,对电流脉动的抑制效果不佳。提出一种三矢量模型预测电流控制方法,该方法将8个空间电压矢量分为6个扇区,每个扇区利用无差拍控制计算两个基本电压矢量和一个零矢量的运行时间,最优电压矢量经过6次预测得到,从而使最优电压矢量可选择范围覆盖任意幅值、任意方位。经过仿真验证,该策略具有可行性,提高了系统稳定性。The radial magnetic field change of the hybrid stepper motor exhibits poor smoothness and continuity,thereby generating significant current pulsation.The space vector pulse width modulation employed in the conventional dual closed-loop control system of the hybrid stepper motor utilizes a PI regulator in its current loop,but it demonstrates an ineffective suppression effect on current pulsation.A three-vector model predictive current control approach was proposed.This method divided 8 spatial voltage vectors into 6 sectors and calculated the running time of two fundamental voltage vectors and one zero vector by adopting the deadbeat control in each sector.The optimal voltage vector was acquired after 6 predictions,enabling the selection of the optimal voltage vector to accommodate any amplitude and direction.The simulation results indicate that this strategy is feasible and enhances the system stability.

关 键 词：三矢量 模型预测电流控制 混合式步进电机 电流脉动 最优电压矢量 

分 类 号：TM383.6[电气工程—电机] TP273[自动化与计算机技术—检测技术与自动化装置]