利用线性矩阵不等式方法研究了奇异摄动系统的H∞控制问题.结合奇异摄动系统和它所对应的广义系统的关系,给出奇异摄动系统可状态反馈H∞控制的条件及控制器的求解.这种方法适用于标准和非标准的奇异摄动系统,仿真结果表明该方法是简单和有效的.
H∞ control problem of singularly perturbed systems is discussed by using linear matrix inequality approach. Combining a singularly perturbed system with the related generalized system, a condition for the H∞ performance of singularly perturbed systems is derived. Based on it, a suboptimal controller is explicitly constructed. The proposed result can be applied not only to standard case,but also to nonstandard singularly perturbed systems. The result of a simulated example shows that the method is effective.