广义系统的H∞最小敏感性控制器设计
Theory and Method for Designing Feedback Controllers of Siso Descriptor Systems With H∞-Optimal Sensitivity
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摘要: 本文在简单介绍H∞最优敏感性设计理论的基础上,研究了广义系统的一些频域特性;提 出一种用H∞方法设计反馈控制器以消除广义系统的脉冲模,并使系统稳定且敏感性最小 的频域设计方法;同时给出了设计步骤,并用算例说明了设计过程.Abstract: In this paper, some frequency characteristics of SISO descriptor systems are first inyestigated after a brief introduction of the H∞-optimal Sensitivity theory. Then, a new frequency domain theory for designing the feedback controllers of SISO descriptor systems is proposed, which can eliminate the impulsive modes, stabilize the systems and obtain the minimal sensitivity. Furthermore, a practical sub-optimal design method is presented. At last, an example is given to demonstrate the designing procedure.
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Key words:
- H∞ control theory /
- descriptor systems /
- weighted sensitivity /
- optimal design
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