基于内模控制参数整定原理的两相混合型步进电机矢量控制技术  

Vector Control Technology for Two-Phase Hybrid Stepper Motors Based on the Internal Mode Control Parameter Rectification Principle

作　　者：马金府 MA Jinfu(Shanghai Chengfeng Fluid Equipment Co.,Ltd.,Shanghai 201600,China)

机构地区：[1]上海成峰流体设备有限公司,上海201600

出　　处：《电工技术》2023年第12期1-4,共4页Electric Engineering

摘　　要：为减小细分控制中低速振荡引起的定位误差,在建立两相混合型步进电机数学模型的基础上,结合转子场定位原理,研究了步进电机的矢量控制技术,给出了基于内模控制原理的控制参数整定方法。针对基于4个非零矢量设计的SVPWM技术电源利用率低的问题,利用空间变换原理,给出了基于8个非零矢量的SVPWM实现技术,大电压矢量圆半径为Udc,有效提高了直流电压的利用率。最后,通过构建位置闭环的矢量控制系统仿真模型验证控制效果。To reduce the positioning error caused by low-speed oscillation in subdivision control,on the basis of establishing the mathematical model of two-phase hybrid stepper motor,combined with the rotor field positioning principle,the vector control technology of stepper motor is studied and the control parameter adjustment method based on the internal mode control principle is given.To address the problem of low power utilisation of SVPWM technology based on 4 non-zero vector designs,an SVPWM implementation technique based on 8 non-zero vectors with a large voltage vector circle radius of U dc is given,which effectively improves the utilisation of DC voltage.Finally,the control effect is verified by constructing a simulation model of a vector control system with closed-loop position.

关 键 词：两相混合步进电机 矢量控制 SVPWM 内模控制 

分 类 号：TM306[电气工程—电机]