| 基于扰动补偿趋近律的非匹配离散广义准滑模控制 |
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| 引用本文： | 刘云龙,高存臣,丛心尉.基于扰动补偿趋近律的非匹配离散广义准滑模控制[J].系统科学与数学,2011,31(6). |
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| 作者姓名： | 刘云龙 高存臣 丛心尉 |
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| 作者单位： | 中国海洋大学数学科学学院,青岛,266100 |
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| 基金项目： | 国家自然科学基金(60974025)资助项目 |
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| 摘 要： | 研究了非匹配不确定离散广义系统准滑模控制策略的综合问题.给出了具有前级状态向量的动态切换函数,使得系统能够在切换带内稳定.设计了两种带有扰动补偿的离散广义趋近律,消除了常规滑模控制策略中不确定项必须有界的限制,且不必满足匹配条件.给出了系统准滑动模态保持逐步穿越切换面的必要条件,减小了准滑动模态切换带的带宽.所设计的滑模控制器在有限时间内可达切换面,削弱了系统抖振,有效地改善了系统动态品质.最后,数值算例验证了该控制策略的可行性.
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| 关 键 词： | 离散广义系统 趋近律 准滑模 扰动补偿 |
QUASI-SLIDING MODE CONTROL FOR MISMATCHED DISCRETE SINGULAR SYSTEMS BASED ON REACHING LAWS WITH DISTURBANCE COMPENSATOR |
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| LIU Yunlong,GAO Cunchen,CONG Xinwei.QUASI-SLIDING MODE CONTROL FOR MISMATCHED DISCRETE SINGULAR SYSTEMS BASED ON REACHING LAWS WITH DISTURBANCE COMPENSATOR[J].Journal of Systems Science and Mathematical Sciences,2011,31(6). |
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| Authors: | LIU Yunlong GAO Cunchen CONG Xinwei |
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| Institution: | LIU Yunlong GAO Cunchen CONG Xinwei (School of Mathematics Science,Ocean University of China,Qingdao 266100) |
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| Abstract: | The synthesis problem of quasi-sliding mode control strategies for mismatched discrete singular systems with internal parameter perturbation and external disturbance is considered.A dynamic switching function with last step state vector is given to guarantee the stability of the control system in the switching band.Two types of discrete singular reaching laws with disturbance compensator are designed to eliminate the restriction that the system uncertainties is bounded and must satisfy matching conditions c... |
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| Keywords: | Discrete singular system reaching law quasi-sliding mode disturbance compensator |
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