摘要
针对永磁同步电机在实际应用中变负载、磁饱和内外干扰等因素影响下的稳定控制问题,提出了基于super-twisting算法的扩张状态观测器(super-twisting extended state observer,STESO)对总扰动进行准确估计和补偿。通过分析永磁同步电机的动力学模型,构建永磁同步电机的扩张状态模型,并以此为基础设计STESO,在有限时间内实现对永磁同步电机总扰动的准确观测。利用Lyapunov方法分析了STESO的稳定性,并推导了误差收敛时间的表达式。仿真实验结果表明,所提方法在位置和转速控制上响应速度快、扰动影响恢复时间短,相比于PID控制、自抗扰控制和基于改进模型预测的自抗扰前馈控制等方法具有更好的快速性和更强的抗扰性,蒙特卡洛实验结果同样显示所提方法针对参数不确定性具有较强的鲁棒性。
Aiming at the stability control problem of permanent magnet synchronous motors(PMSM)under the influence of internal and external disturbance factors such as variable load and magnetic saturation in practical application,a super twisting extended state observer(STESO)based on super twisting algorithm is proposed to accurately estimate and compensate the total disturbance.By analyzing the dynamic model of the PMSM,the extended state model of PMSM is constructed.Based on the proposed model,STESO is designed to accurately observe the total disturbance of PMSM in finite time.At the same time,the stability of STESO is analyzed by Lyapunov method,and the expression of error convergence time is deduced.The simulation results show that the proposed method has fast response speed and short recovery time of disturbance influence in position and rotation speed control.Compared with PID control,ADRC and ADRC feedforward control based on improved model prediction and other methods,it has better rapidity and stronger disturbance rejection capability.The Monte Carlo experimental results also show that the proposed method has strong robustness against parametric uncertainties.
作者
邵欣
胡成琳
SHAO Xin;HU Chenglin(Intelligent Manufacturing College,Tianjin Sino-German University of Applied Sciences,Tianjin 300350,China)
出处
《火力与指挥控制》
CSCD
北大核心
2023年第4期166-172,共7页
Fire Control & Command Control
基金
天津市教委科研计划基金资助项目(2019ZD23)。
关键词
永磁同步电机
超螺旋扩张状态观测器
转速控制
自抗扰控制
permanent magnetic synchronous motor(PMSM)
super-twisting extended state observer
rotation speed control
active disturbance rejection control
作者简介
邵欣(1980-),男,天津人,博士,副教授。研究方向:智能控制与检测。
