基于改进分数阶自抗扰的永磁同步电机转速控制策略研究  

Research on PMSM control strategy based on improved fractional order active disturbance rejection

作　　者：闫宏亮[1] 史王晨 YAN Hongliang;SHI Wangchen(Shanxi Provincial Key Laboratory of Oil and Gas Well Measurement and Control Technology,Xi'an Shiyou University,Xi'an 710065,China)

机构地区：[1]西安石油大学陕西省油气井测控技术重点实验室,西安710065

出　　处：《现代制造工程》2025年第4期151-158,共8页Modern Manufacturing Engineering

基　　金：陕西省教育厅重点实验资助项目(15JS084);西安石油大学研究生创新基金项目(YCX2413094)。

摘　　要：针对永磁同步电机(Permanent Magnet Synchronous Motor,PMSM)转速控制系统中存在的鲁棒性和抗干扰能力差的问题,提出了一种改进分数阶自抗扰控制器(Improved Fractional Order Active Disturbance Rejection Controller,IFOADRC),代替传统非线性自抗扰控制器。首先,设计了新的非线性函数,应用于非线性分数阶扩张状态观测器(Nonlinear Fractional Order Extended State Observer,NFOESO)中,采用线性分数阶扩张状态观测器(Linear Fractional Order Extended State Observer,LFOESO)对系统总扰动进行初步估计;然后,通过设计的权重函数将该估计结果引入到非线性分数阶扩张状态观测器中,建立了改进分数阶自抗扰控制器,并且通过理论分析了该控制策略的收敛性和抗干扰能力;最后,进行了Simulink仿真和links-RT半实物实验验证。实验结果表明,所提控制策略相比传统非线性自抗扰控制器(Nonlinear Active Disturbance Rejection Controller,NLADRC)和级联扩张状态观测器的自抗扰控制器(Cascaded Linear Active Disturbance Rejection Controller,CLADRC),当电机受到速度阶跃时,调节时间在加速时分别减少了25.6%和17.6%,在减速时分别减少了10.7%和5.6%;当电机受到负载扰动时,调节时间在突加负载时分别减少了51.9%和24.2%,在突减负载时分别减少了41.5%和22.6%;验证了所提控制策略能有效增强永磁同步电机的鲁棒性和抗干扰能力。Aiming at the problem of poor robustness and anti-interference ability in Permanent Magnet Synchronous Motor(PMSM)speed control system,an Improved Fractional Order Active Disturbance Rejection Controller(IFOADRC)is proposed to replace the traditional active disturbance rejection controller.First,a new nonlinear function is designed and applied to the Nonlinear Fractional Order Extended State Observer(NFOESO).The Linear Fractional Order Extended State Observer(LFOESO)is used to make preliminary observations of the total disturbance,and then the designed weight function is used to introduce the estimated results into the nonlinear fractional extended state observer.Secondly,the Improved Fractional Order Active Disturbance Rejection Controller(IFOADRC)is established,and the convergence and interference suppression ability of the control strategy are analyzed theoretically.Finally,Simulink simulations and links-RT hardware-in-the-loop experiments are conducted to validate the proposed control strategy.Experimental results demonstrated that,compared to the traditional Nonlinear Active Disturbance Rejection Controller(NLADRC)and Cascaded Linear Active Disturbance Rejection Controller(CLADRC),the proposed control strategy achieved the following improvements:during speed step inputs,the settling time was reduced by 25.6%and 17.6%during acceleration,and by 10.7%and 5.6%during deceleration;during load disturbances,the settling time was reduced by 51.9%and 24.2%during sudden load addition,and by 41.5%and 22.6%during sudden load reduction.These results validate that the proposed control strategy effectively enhances the robustness and disturbance rejection capability of permanent magnet synchronous motors.

关 键 词：自抗扰控制 永磁同步电机 级联扩张状态观测器 分数阶微积分 

分 类 号：TM351[电气工程—电机]