永磁同步电机全局积分终端滑模矢量控制  

Global Integral Terminal Sliding Mode Vector Control of Permanent Magnet Synchronous Motor

作　　者：李扬 杨芳艳 李清都 赵广凯 LI Yang;YANG Fangyan;LI Qingdu;ZHAO Guangkai(School of Mechanical Engineering,University of Shanghai for Science and Technology,Shanghai 200093,China;Institute of Machine Intelligence,University of Shanghai for Science and Technology,Shanghai 200093,China)

机构地区：[1]上海理工大学机械工程学院,上海200093 [2]上海理工大学机器智能研究院,上海200093

出　　处：《电力系统及其自动化学报》2025年第4期21-29,共9页Proceedings of the CSU-EPSA

基　　金：国家自然科学基金资助项目(92048205)。

摘　　要：为提高永磁同步电机的速度控制性能,提出一种基于高阶对数滑模扰动观测器的全局积分终端滑模矢量控制策略。首先,设计趋近速度可随状态变量自适应调节的趋近律,并把符号函数替换为可在零点实现平滑过渡的非线性函数;同时,将全局滑模因子项引入改进积分终端滑模面中,构造全局积分终端滑模速度控制器,使控制系统具有全局鲁棒性;然后,将可实现有限时间收敛的对数滑模面与高阶控制律相结合,设计高阶对数滑模扰动观测器,把观测出的系统扰动作为已知量对前端控制器进行补偿,提高控制精度。仿真结果表明该策略能够显著减小转速波动并提高系统稳定性。To improve the speed control performance of a permanent magnet synchronous motor,a global integral termi-nal sliding mode vector control strategy based on ahigh-order logarithmic sliding mode disturbance observer is proposed.First,a reaching law whose reaching speed can be adjusted adaptively with the state variable is designed,and the sym-bolic function is replaced by a nonlinear function which can achieve a smooth transition at the zero point.At the same time,a global sliding mode factor is introduced into the improved integral terminal sliding mode surface,and a global integral terminal sliding mode speed controller is constructed to ensure that the control system has global robustness.Then,a logarithmic sliding mode surface which can realize convergence in finite time is combined with ahigh-order con-trol law to design the high-order logarithmic sliding mode disturbance observer.The observed system disturbance is used as a known quantity to compensate the front-end controller and improve the control accuracy.Simulation results show that the proposed strategy can significantly reduce speed fluctuations while improving the system stability.

关 键 词：永磁同步电机 趋近律 非线性函数 全局积分终端滑模 高阶对数滑模扰动观测器 

分 类 号：TM341[电气工程—电机]