摘要
为研究永磁同步电机(PMSM)在无速度传感器工况下的速度跟踪估计,根据PMSM的工作原理,建立了内埋式PMSM的数学模型。利用积分滑模鲁棒性强的优点,提出了在积分滑模控制条件下采用旋转高频电压注入法对电机转速估计的无速度传感器控制方案,并分析了电机在高低速运行时的特点。仿真结果表明,采用高频注入法的积分滑模控制系统在高、低速工况下运行时稳定可靠,并具有较好的鲁棒性,能够实现速度跟踪估计。
Based on the principle of PMSM,a mathematical model of embedded PMSM was established for the study of speed tracking estimates of PMSM without speed sensor.The speed sensor-less control scheme to estimate the speed of the motor was proposed with rotating voltage high frequency injection method in the mode of integral sliding mode control with its advantages,and the working characters in both high and low speed was also analyzed.Simulation results show that the control system is reliable in both occasions and capable of achieving better speed tracking control with good robustness.
作者
张玲
ZHANG Ling(Department of Railway Power Traction,Xi′an Railway Vocational and Technical Institute,Xi′an 710028,China)
出处
《工业仪表与自动化装置》
2019年第4期105-107,116,共4页
Industrial Instrumentation & Automation
基金
西安铁路职业技术学院2019年度立项课题“机车牵引传动系统建模及其控制技术研究”(XTZY19G09)
关键词
永磁同步电机
积分滑模控制
旋转高频电压注入法
无速度传感器
PMSM
integral sliding mode control(ISMC)
rotating voltage high frequency injection method
speed sensor-less
