一种永磁同步电机无模型超螺旋快速终端滑模控制方法  

A model-free super-twisting fast terminal sliding mode control method for a permanent magnet synchronous motor

作　　者：赵凯辉[1] 易金武 刘文昌 谯梦洁 张昌凡[1] 王兵[1] ZHAO Kaihui;YI Jinwu;LIU Wenchang;QIAO Mengjie;ZHANG Changfan;WANG Bing(College of Electrical and Information Engineering,Hunan University of Technology,Zhuzhou 412007,China)

机构地区：[1]湖南工业大学电气与信息工程学院,湖南株洲412007

出　　处：《电力系统保护与控制》2023年第22期88-98,共11页Power System Protection and Control

基　　金：国家自然科学基金项目资助(52172403,62173137);湖南省自然科学基金项目资助(2023JJ50193,2023JJ30214,2023JJ50196);湖南省教育厅科学研究项目资助(21A0354,21C0446)。

摘　　要：针对内置式永磁同步电机(interior permanent magnet synchronous motor,IPMSM)由于内部参数变化、外部扰动等各种不确定性因素导致控制性能不佳的问题,提出一种无模型超螺旋快速终端滑模控制方法。首先,建立考虑IPMSM不确定性的新型超局部模型,结合超螺旋算法和快速终端切换函数设计无模型超螺旋快速终端滑模控制器,确保系统状态有限时间收敛,并有效减小抖振。其次,设计扩展滑模扰动观测器精准估计超局部模型中的未知部分,并前馈补偿给设计的控制器,进一步提升系统的抗干扰能力和跟踪性能。最后,通过与PI控制和传统无模型滑模控制进行仿真实验对比,验证了该方法具有更快的收敛速度和更强的鲁棒性。There is a problem of interior permanent magnet synchronous motor(IPMSM)control performance degradation due to various uncertainties such as internal parameter changes and external disturbances.Thus a model-free super-twisting fast terminal sliding mode control method is proposed.First,a new ultra-local model is established for IPMSM considering its uncertainty.The model-free super-twisting fast terminal sliding mode controller is designed by combining the super-twisting algorithm with the fast terminal switching function to ensure that the system state can reach the steady state in a finite time and effectively reduce chattering.Second,an extended sliding mode disturbance observer is designed to estimate the unknown part of the ultra-local model accurately,and feedforward compensation is performed to the designed controller.This further improves the anti-interference ability and system tracking performance.Finally,by comparing with PI control and conventional model-free sliding mode control methods,the simulation and experimental results verify that the presented method has faster convergence and stronger robustness.

关 键 词：永磁同步电机 超局部模型 超螺旋快速终端控制 扩展滑模扰动观测器 

分 类 号：TM341[电气工程—电机]