| 基于学习前馈控制的高精度直线伺服系统跟踪控制研究 |
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| 引用本文： | 王成元,刘莉莉,夏加宽.基于学习前馈控制的高精度直线伺服系统跟踪控制研究[J].电工技术学报,2004,19(10):27-31. |
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| 作者姓名： | 王成元 刘莉莉 夏加宽 |
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| 作者单位： | 沈阳工业大学电气工程学院,沈阳,110023;沈阳工业大学电气工程学院,沈阳,110023;沈阳工业大学电气工程学院,沈阳,110023 |
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| 基金项目： | 国家自然科学基金，辽宁省自然科学基金 |
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| 摘 要： | 针对直接驱动的永磁直线同步电动机(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)策略对其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.仿真结果表明,该控制策略有效地降低了负载扰动、端部效应、摩擦力及参数变化等对系统性能的影响,提高了直线伺服系统的跟踪精度.
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| 关 键 词： | 永磁直线同步电动机 端部效应 学习前馈控制 B样条网络 |
| 修稿时间： | 2004年3月31日 |
Research on Tracking Control of High Precision Linear Servo System Based on Learning Feed-Forward Control |
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| Wang Chengyuan,Liu Lili,Xia Jiakuan.Research on Tracking Control of High Precision Linear Servo System Based on Learning Feed-Forward Control[J].Transactions of China Electrotechnical Society,2004,19(10):27-31. |
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| Authors: | Wang Chengyuan Liu Lili Xia Jiakuan |
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| Affiliation: | Shenyang University of Technology Shenyang 110023 China |
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| Abstract: | Learning feed-forward control(LFFC)is introduced to suppress further the tracking error of direct-drive permanent magnet linear synchronous motor(PMLSM)servo system. In this paper, the design and realization of learning feed-forward controller is presented by means of qualitative knowledge of the process and the disturbances. The learning feed-forward component is a neural-network-based controller, comprised of a one-hidden-layer structure with second-order B-spline basis functions. Simulation result shows that LFFC reduces effectively the influence of external disturbances, end effect, friction and parameters variation; and enhance the track performance of the PMLSM servo system. |
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| Keywords: | Permanent-magnet linear synchronous motor(PMLSM) end-effects learning feed-forward control B spline network |
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