基于复合连续终端滑模控制的永磁同步电机位置伺服系统  

Position servo system of permanent magnet synchronous motor based on composite continuous terminal sliding mode control

作　　者：徐恒吉 XU Hengji(China Railway 14th Bureau Group Co.,Ltd.,Jinan 250014,Shandong,China)

机构地区：[1]中铁十四局集团有限公司,山东济南250014

出　　处：《中国工程机械学报》2024年第5期635-640,共6页Chinese Journal of Construction Machinery

基　　金：中铁十四局集团有限公司科研课题(十四局科创2022-699号)。

摘　　要：为了提高永磁同步电机(PMSM)位置伺服系统的动态响应和抗负载扰动能力,提出一种基于高阶滑模观测器(HOSMO)的复合连续终端滑模控制(CTSMC)策略。首先,建立一个针对速度状态和集总不确定性估计的HOSMO。其次,通过引入状态和干扰估计信息构造基于积分器的终端滑模面,使系统能够精确跟踪期望轨迹。最后,通过综合趋近律和扰动前馈补偿技术,得到复合滑模控制(SMC)器。实验结果表明:所提出的控制策略能够有效地提高PMSM伺服系统的跟踪和定位性能,并且具有良好的鲁棒性和抗扰能力,能够在实际应用中取得良好的控制效果。A composite continuous terminal sliding mode control strategy based on a high-order sliding mode observer is proposed to improve the dynamic response and disturbance rejection ability of the permanent magnet synchronous motor(PMSM)position servo system.Firstly,a high-order sliding mode observer is developed for estimating the velocity state and lumped uncertainty.Then,an integrator-based terminal sliding mode surface is constructed by incorporating the state and disturbance estimation information,which enables the system to track the desired trajectory accurately.Finally,a composite sliding mode controller is obtained by integrating the reaching law and disturbance feedforward compensation techniques.Experimental results show that the proposed control method can effectively improve the tracking and positioning performance of the PMSM servo system and exhibits good robustness and disturbance rejection capabilities,thus achieving good control effects in practical applications.

关 键 词：永磁同步电机(PMSM) 位置伺服系统 连续终端滑模控制(CTSMC) 高阶滑模观测器(HOSMO) 

分 类 号：TP242[自动化与计算机技术—检测技术与自动化装置]