| 离散变速趋近律抖振机理及鲁棒性研究 |
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| 引用本文： | 吴汉松,宋立忠,姚琼荟.离散变速趋近律抖振机理及鲁棒性研究[J].海军工程大学学报,2004,16(6):41-44. |
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| 作者姓名： | 吴汉松 宋立忠 姚琼荟 |
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| 作者单位： | 海军工程大学,电气工程系,湖北,武汉,430033 |
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| 摘 要： | 研究基于离散变速趋近律的变结构控制设计问题.利用不等式形式到达条件研究变速趋近律的抖振机理,并对其鲁棒性进行分析.研究结果表明,只要不确定因素有界,即可保证闭环系统的鲁棒稳定性,而通过调整变速趋近律自身参数,可以避免抖振并使系统具有良好的动态品质.将理论成果用于某型船舶航向自动舵的设计,实验结果证实了它的有效性.
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| 关 键 词： | 离散变结构控制 变速趋近律 抖振 鲁棒性 船舶自动舵 |
| 文章编号： | 1009-3486(2004)06-0041-04 |
| 修稿时间： | 2004年6月6日 |
Chattering analysis and robustness study of discrete variable rate reaching law |
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| WU Han-song,SONG Li-zhong,YAO Qiong-hui.Chattering analysis and robustness study of discrete variable rate reaching law[J].Journal of Naval University of Engineering,2004,16(6):41-44. |
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| Authors: | WU Han-song SONG Li-zhong YAO Qiong-hui |
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| Abstract: | The design of variable structure control based on the discrete variable rate reaching law is discussed. The reason for system chattering is analyzed by introducing the inequation form reaching condition, and the robustness property is studied. It is shown that the variable rate reaching law can avoid the chattering, and exhibit good dynamic performance by adjusting parameters. Besides the robust stability of the closed-loop system can be ensured if the uncertainties are bounded. The variable rate reaching law is applied to the controller design for a ship autopilot. Experiment results verify its effectiveness. |
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| Keywords: | discrete variable structure control variable rate reaching law chattering robustness ship autopilot |
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