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具有平衡点漂移的非线性系统参数H∞控制

, PP. 1827-1830

Keywords: 非线性系统,参数H∞,控制,平衡点分析,线性矩阵不等式

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Abstract:

针对具有参数不确定性的非线性系统,研究其参数H∞控制问题.首先,当外界扰动输入为零时,利用非线性代数方程给出非线性系统平衡点存在区域;然后,当外界扰动输入不为零时,设计状态控制器,通过Lyapunov函数法,推导出使闭环系统参数稳定且满足H∞性能指标的充分条件.仿真结果表明,所设计的H∞控制器能有效地稳定非线性系统,并且具有一定的H∞性能指标.

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