摘要
为了提高永磁同步电机双惯量系统在不确定性扰动影响下的控制性能,提出一种基于双扰动观测器的无模型递归终端滑模控制策略。首先,建立存在不确定性扰动的永磁同步电机双惯量系统模型,并结合无模型控制与递归终端滑模控制设计无模型递归终端滑模控制器,使系统状态直接从滑模面开始运动,缩短了状态误差的收敛时间,有效抑制抖振。其次,通过构造扩张状态观测器观测负载速度并反馈到改进型扩展扰动滑模观测器中,构成双扰动观测器。同时,双扰动观测器精确估计总扰动信号并前馈补偿到所设计的控制器,进一步提高系统稳态性能和抗扰动能力。最后,通过仿真和实验验证得出,所提出的控制方案相较于比例积分控制和改进型无模型滑模控制方法更具有优越性和可行性。
To improve the control performance for the dual-inertia system of a permanent magnet synchronous(PMSM)motor under the influence of uncertainty,this paper proposes a model-free recursive terminal sliding-mode control method based on a dual perturbation observer.First,a dual-inertia system model for the PMSM is established with uncertain disturbances.The model-free recursive terminal sliding mode controller that is devised by combining model-free control and recursive terminal sliding mode control enables the system state to be moved from the sliding mode surface at the beginning.This shortens the time for the state error to converge and effectively suppresses chattering.Then,a dual disturbance observer is designed by constructing an extended state observer to observe load speed and feed it back to an improved extended disturbance sliding mode observer.It accurately estimates the lumped disturbance signals and puts the feed-forward compensation to the controller,which further improves the steady-state performance and the anti-disturbance capability of the system.Finally,the superiority and effectiveness of the scheme is verified by simulation and experiment which contrasts it with proportional-integral and improved model-free sliding mode control.
作者
吕玉映
赵凯辉
游鑫
谯梦洁
何颖燊
涂麟轩
LÜYuying;ZHAO Kaihui;YOU Xin;QIAO Mengjie;HE Yingshen;TU Linxuan(College of Electrical and Information Engineering,Hunan University of Technology,Zhuzhou 412007,China)
出处
《电力系统保护与控制》
EI
CSCD
北大核心
2024年第21期129-139,共11页
Power System Protection and Control
基金
国家自然科学基金重点项目资助(52172403,62173137,62303178)
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(21A0354,22B0577,21C0446)。
关键词
双惯量系统
永磁同步电机
快速积分终端滑模控制
无模型递归终端滑模控制
双扰动观测器
dual-inertia system
permanent magnet synchronous motor
fast integral terminal sliding mode control
model-free recursive terminal sliding mode control
double disturbance observer
