| 引用本文: | 杨青运,陈谋.具有输入饱和的近空间飞行器鲁棒控制[J].控制理论与应用,2015,32(1):18~28.[点击复制] |
| YANG Qing-yun,CHEN Mou.Robust control for near space vehicles with input saturation[J].Control Theory and Technology,2015,32(1):18~28.[点击复制] |
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| 具有输入饱和的近空间飞行器鲁棒控制 |
| Robust control for near space vehicles with input saturation |
| 摘要点击 3510 全文点击 1730 投稿时间：2014-02-25 修订日期：2014-09-23 |
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| DOI编号 10.7641/CTA.2014.40138 |
| 2015,32(1):18-28 |
| 中文关键词 近空间飞行器 非线性控制 输入饱和 干扰观测器 鲁棒控制 |
| 英文关键词 near space vehicles nonlinear control input saturation disturbance observer robust control |
| 基金项目 国家自然科学基金项目(61174102), 江苏省自然科学基金项目(SBK20130033, SBK2011069), 教育部博士点基金项目(20133218110013), 江苏省六大高峰人才项目(2012--XXRJ--010)资助. |
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| 中文摘要 |
| 针对近空间飞行器这一类存在外部扰动, 输入饱和和参数不确定的多输入多输出线性系统, 提出了一种基于干扰观测器的抗饱和鲁棒控制方案. 将干扰观测器与抗饱和控制技术相结合, 从而消除系统存在的未知外部扰动、输入饱和和不确定性对系统控制的影响. 首先, 设计干扰观测器对线性外部系统产生的未知扰动进行估计. 然后根据干扰观测器输出, 通过超前抗饱和方法设计抗饱和补偿器, 并将其加入到鲁棒控制器的设计中, 保证闭环系统存在输入饱和、未知外部扰动和参数不确定情况下的稳定性. 为便于设计, 干扰观测器、抗饱和补偿器和控制器设计矩阵均通过求解线性矩阵不等式得到. 最后, 将提出的鲁棒抗饱和控制方法应用于近空间飞行器, 仿真结果验证了该控制方案的有效性.
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| 英文摘要 |
| An anti-windup robust control scheme is proposed for the near space vehicles (NSV) which are a class of multi-input multi-output (MIMO) linear systems with input saturation, unknown external disturbances and parametric uncertainties. The developed anti-windup control scheme is cooperated with disturbance observer to eliminate the effects of input saturation, unknown external disturbances and parametric uncertainties. A disturbance observer is presented to estimate the unknown disturbance generated by a linear exogenous system. Then, based on the output of the disturbance observer, the anticipatory anti-windup compensator is developed and considered with the robust controller design to ensure the stability of the close-loop system subject to unknown external disturbances, input saturation and parametric uncertainties. The designed gain matrices of the disturbance observer, anti-windup compensator and robust controller are determined by solving the linear matrix inequalities (LMIs). Finally, the proposed anti-windup robust control scheme is applied to the NSV, and the effectiveness of this developed control scheme is illustrated by the simulation results. |
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