| 基于B样条网补偿的直线伺服系统跟踪控制 |
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| 引用本文： | 赵希梅,郭庆鼎,姜西羚.基于B样条网补偿的直线伺服系统跟踪控制[J].沈阳工业大学学报,2005,27(5):514-517. |
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| 作者姓名： | 赵希梅 郭庆鼎 姜西羚 |
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| 作者单位： | 1. 沈阳工业大学,电气工程学院,沈阳,110023
2. 辽宁省水力水电勘测设计研究院,沈阳,110006 |
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| 基金项目： | 国家自然科学基金资助(50075057) |
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| 摘 要： | 针对永磁直线同步电机(PMLSM)伺服系统，在分析影响直线伺服跟踪精度因素的基础上，采用学习前馈控制(LFFC)策略对该伺服系统进行有效的补偿控制.在系统和扰动定性知识的基础上，设计了基于B样条网络的学习前馈补偿控制，利用了B样条网具有收敛速度快和避免局部极值的优点.仿真结果表明，该控制策略明显降低了外部负载扰动、端部效应、摩擦力以及系统参数变化等对系统性能的影响，从而显著提高了直线伺服系统的跟踪精度.
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| 关 键 词： | 永磁直线同步电机 直线伺服 端部效应 学习前馈控制 B样条网络 |
| 文章编号： | 1000-1646(2005)05-0514-04 |
| 收稿时间： | 06 2 2005 12:00AM |
| 修稿时间： | 2005年6月2日 |
The tracking control based on B spline network compensation for linear servo system |
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| ZHAO Xi-mei,GUO Qing-ding,JIANG Xi-ling.The tracking control based on B spline network compensation for linear servo system[J].Journal of Shenyang University of Technology,2005,27(5):514-517. |
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| Authors: | ZHAO Xi-mei GUO Qing-ding JIANG Xi-ling |
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| Affiliation: | ZHAO Xi-mei~1,GUO Qing-ding~1,JIANG Xi-ling~2 |
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| Abstract: | For permanent magnet linear synchronous motor(PMLSM) servo system,on the basis of analyzing the factors that influence the tracking precision of servo system,learning feed-forward control(LFFC) is introduced to suppress further the tracking error.In this paper,LFFC based on B-spline network(BSN) is designed by means of qualitative knowledge of the process and disturbances.The advantages of B spline network with fast convergence and avoidance of the local extreme are used.Simulation results show that the proposed scheme can reduce effectively the influence of external load disturbances,end effect,friction and parameter variation of the system.The tracking performances of the PMLSM servo system are significantly improved. |
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| Keywords: | PMLSM linear servo end-effects learning feed-forward control B spline network |
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