引入扰动补偿的PMSM新型非奇异终端滑模控制  

New Non-singular Terminal Sliding Mode Control for PMSM With Disturbance Compensation

作　　者：王旻 李好文[1] 郑岗[1] WANG Min;LI Hao-wen;ZHENG Gang(Xi'an University of Technology,Xi'an 710048,China)

机构地区：[1]西安理工大学,自动化与信息工程学院,陕西西安710048

出　　处：《电力电子技术》2020年第8期1-4,共4页Power Electronics

摘　　要：提出了一种基于新型自适应幂指数趋近律的新型非奇异终端滑模(NNTSM)控制策略,该控制律结合冪次趋近律和指数趋近律的特点,并引入新型自适应系数,有效抑制了滑模的固有抖振现象,提高了趋近速度。同时为改善滑模变结构控制(SMC)在负载扰动情况下动态性能不佳问题,设计了滑模转矩观测器(SMTO),实时观测负载转矩,并进行前馈补偿。理论分析与仿真及实验结果表明,所提方法能有效提高系统的静、动态特性与鲁棒性。New non-singular terminal sliding mode(NNTSM)control strategy based on adaptive power exponential approach law is proposed.The control rate combines characteristics of power approaching law and exponential approach law and introduces an adaptive coefficient which effectively suppresses the inherent buffeting phenomenon of sliding mode and improves the approaching speed.Meanwhile,in order to improve the dynamic performance of sliding-mode variable structure control(SMC)under load disturbance,the sliding mode torque observer(SMTO)is designed to observe the load torque in real time and compensate feedforward.Theoretical analysis and simulation and experimental results show that proposed method can effectively improve the static and dynamic characteristics and robustness of system.

关 键 词：永磁同步电机 新型非奇异终端滑模 扰动补偿 

分 类 号：TM351[电气工程—电机]