一类非线性相似组合系统的鲁棒分散控制器的设计
Design of Decentralized Robust Controller For A Class of Nonlinear Composite Systems With Similarity
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摘要: 对于一类非线性组合系统提出了系统的相似性结构的定义,讨论了这类具有相似性 结构的非线性结构不确定组合系统的鲁棒分散镇定问题.利用系统的相似性结构,采用输入、 输出线性化与滑模控制原理相结合的方法所设计出的鲁棒分散控制器可确保闭环系统是渐 近稳定的.研究结果表明系统的相似性结构使设计的滑动面和分散控制器亦具有相似结构, 从而简化了对系统的分析与设计.Abstract: In this paper, the similar structure is defined for a class of nonlinear composite systems, and the decentralized robust stabilization is discussed for a class of nonlinear uncertain composite systems with similar structure. By using the similar structure of system and the input-output linearizing method together with sliding mode control theory, robust decentralized controllers are designed to guarantee the closed-loop systems is asymptotically stable. Our researching result shows that the sliding model and decentralized controller designed in this paper also have similarity because of the similar structure of the composite systems. This can simplify the analysis and design of systems.
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Key words:
- Similar structure /
- robust stabilization /
- nonlinear composite systems
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