永磁同步电机改进滑模复合控制器设计  

Improved sliding mode composite controller design for permanent magnet synchronous motors

作　　者：席隆兴 马家庆 敖邦乾 XI Longxing;MA Jiaqing;AO Bangqian(College of Electrical Engineering,Guizhou University,Guiyang 550025,CHN;Zunyi Teachers College of Engineering,Zunyi 563006,CHN)

机构地区：[1]贵州大学电气工程学院,贵州贵阳550025 [2]遵义师范学院工学院,贵州遵义563006

出　　处：《制造技术与机床》2025年第3期105-111,共7页Manufacturing Technology & Machine Tool

基　　金：国家自然科学基金项目(62163006);贵州省科技厅黔科合支撑项目([2022]一般264,[2023]一般179)。

摘　　要：为了提高永磁同步电机(permanent magnet synchronous motor,PMSM)驱动系统调速性能,解决传统滑模控制系统抖振与快速性之间的矛盾,提出一种PMSM改进滑模复合控制方案。首先,电流环设计了改进快速超螺旋滑模控制(improving fast super twisting algorithm,IFSTA)来改善系统的抖振。其次,转速环使用改进指数趋近律设计滑模转速控制器(novel sliding mode speed controller,NSMSC)。最后,使用非线性扩展状态观测器(nonlinear extended state observer,NESO)来实时估计负载转矩扰动,通过估计的转矩信息对由NSMSC得到的q轴给定电流进行前馈补偿。仿真和试验表明,与传统滑模复合控制相比,采用改进复合控制策略的超调量减少了13.6%,系统抖振峰值降低了3.5 r/min,控制系统的整体性能得到提升。To improve the speed control performance of the permanent magnet synchronous motor(PMSM)drive system and to solve the conflict between jitter and speed of the traditional sliding mode control system,an improved sliding mode composite control scheme for PMSM is proposed.Firstly,the current loop is designed with an improving fast super twisting algorithm(IFSTA)to improve the system jitter.Secondly,the speed loop uses an improved exponential convergence law to design the novel sliding mode speed controller(NSMSC).Finally,a nonlinear extended state observer(NESO)to estimate the load torque disturbance in real time and feed-forward compensates the q-axis given current obtained from the NSMSC by the estimated torque information.It is shown by simulation and experiment that the improved composite control strategy reduces the overshoot by 13.6%compared with the conventional sliding mode composite control,reduces the system jitter peak by 3.5 r/min,and improves the overall performance of the control system.

关 键 词：永磁同步电机 滑模控制 复合控制 超螺旋滑模 非线性扩展状态观测器 

分 类 号：TM341[电气工程—电机]