电工技术学报  2019, Vol. 34 Issue (3): 483-488    DOI: 10.19595/j.cnki.1000-6753.tces.180082
电机与电器 |
基于积分滑模的永磁直线同步电动机直接推力控制
原浩, 赵希梅
沈阳工业大学电气工程学院 沈阳 110870
Direct Thrust Force Control Based on Integral Sliding Mode for Permanent Magnet Linear Synchronous Motor
Yuan Hao, Zhao Ximei
School of Electrical Engineering Shenyang University of Technology Shenyang 110870 China
全文: PDF (18870 KB)  
输出: BibTeX | EndNote (RIS)      
摘要 针对永磁直线同步电动机(PMLSM)直接推力控制(DTFC)存在推力纹波和稳态误差等问题,提出一种基于积分滑模的PMLSM伺服系统DTFC方案。利用速度与推力作为状态变量,在同步旋转定子磁链矢量坐标参考系中构建二阶非线性状态空间方程,并根据此空间状态建立积分滑模控制律,取代独立的速度控制器与推力控制器,简化了系统的控制结构,提高了系统的动态响应。选用饱和函数作为切换函数,降低了滑模控制(SMC)的抖振现象,进一步消除速度跟踪中的稳态误差,提高了系统的鲁棒性。利用李雅普诺夫稳定性分析证明了积分滑模控制器是全局渐近稳定的。通过实验验证了所提出的方法是有效的,与采用PI控制的DTFC相比,基于积分滑模的DTFC系统具有更快的动态响应,更好的稳态控制性能和较强的鲁棒性能。
服务
把本文推荐给朋友
加入我的书架
加入引用管理器
E-mail Alert
RSS
作者相关文章
原浩
赵希梅
Abstract:A direct thrust force control (DTFC)scheme based on integral sliding mode for permanent magnet linear synchronous motor (PMLSM) servo system was proposed for the problems of ripple in the thrust force, steady state error and other issues. Considering speed and thrust force as the state variables, a second order nonlinear state space model was established in a synchronously rotating stator flux vector reference system. According to the space state, an integral sliding mode control law was established to replace the independent speed controller and thrust force controller. This simplified the control structure of the system and improved dynamic response of the system. The saturated function was selected as the switching function to reduce the chattering of sliding mode control (SMC) and eliminated the steady state error in speed tracking, improving the robustness of the system. Lyapunov stability analysis to prove the stability of the controller was provided. The effectiveness and feasibility of the proposed scheme is validated experimentally. Compared with DTFC using PI control, the DTFC system based on the integral sliding mode control gets faster dynamic response, excellent steady state speed control performance and strong robustness.
Key wordsPermanent magnet linear synchronous motor    direct thrust force control    sliding model control    robustness   
收稿日期: 2018-01-18      出版日期: 2019-01-31
PACS: TP273  
基金资助:辽宁省自然科学基金计划重点项目(20170540677)和辽宁省教育厅科学技术研究项目(LQGD2017025)资助
通讯作者: 赵希梅,女,1979年生,博士,教授,博士生导师,研究方向为电机控制、机器人控制、智能控制等。E-mail:zhaoxm_sut@163.com   
作者简介: 原浩男,1992年生,硕士研究生,研究方向为直线伺服、智能控制等。E-mail:yuanhao_sut@163.com
引用本文:   
原浩, 赵希梅. 基于积分滑模的永磁直线同步电动机直接推力控制[J]. 电工技术学报, 2019, 34(3): 483-488. Yuan Hao, Zhao Ximei. Direct Thrust Force Control Based on Integral Sliding Mode for Permanent Magnet Linear Synchronous Motor. Transactions of China Electrotechnical Society, 2019, 34(3): 483-488.
链接本文:  
https://dgjsxb.ces-transaction.com/CN/10.19595/j.cnki.1000-6753.tces.180082          https://dgjsxb.ces-transaction.com/CN/Y2019/V34/I3/483