引用本文: | 李昇平.MIMO离散时间系统混合l1/H2控制[J].控制理论与应用,2004,21(1):101~106.[点击复制] |
LI Sheng-ping.Mixed l1/H2 control for MIMO discrete-time systems[J].Control Theory and Technology,2004,21(1):101~106.[点击复制] |
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MIMO离散时间系统混合l1/H2控制 |
Mixed l1/H2 control for MIMO discrete-time systems |
摘要点击 1892 全文点击 1819 投稿时间:2001-05-08 修订日期:2002-11-15 |
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DOI编号 10.7641/j.issn.1000-8152.2004.1.021 |
2004,21(1):101-106 |
中文关键词 MIMO系统 离散时间系统 混合l1/H2优化 |
英文关键词 MIMO system discrete-time systems mixed l1/H2 optimization |
基金项目 国家自然科学基金项目(60374009); 广东省自然科学基金项目(990795). |
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中文摘要 |
研究了MIMO(多输入多输出)离散时间系统的混合l1/H2优化问题,该问题可描述为最优化一个传递函数矩阵的l1范数同时保证另一个传递函数矩阵的H2范数满足预定的指标.研究了最优目标函数值关于H2范数指标的连续性.证明了MIMO系统混合l1/H2控制问题最优解的存在性.由于基于标定-Q(scaled-Q)方法求解MIMO混合l1/H2问题,避免了进行零点插值运算的困难.通过求解有限维非线性规划问题可得到最优目标值的收敛的上下界. |
英文摘要 |
The mixed l1/H2 optimization problem for MIMO discrete-time systems was presented. This problem was formulated as minimizing the l1-norm of a closed-loop transfer matrix while maintaining the H2-norm of another closed-loop transfer matrix at prescribed index. The existence of the optimal solutions of mixed l1/H2 problem is proved. A solving method of the mixed l1/H2 problem was given based on the scaled-Q method. A numeric simulation example indicated the effectiveness of the method. |