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广义系统输出反馈镇定与零点配置

作者:时间:2014-07-15点击数:

PDF全文下载:20140303018

林晓颖, 张国山*

 (天津大学 电气与自动化工程学院,天津 300072)

 摘要: 研究了线性时不变广义系统的输出反馈镇定与零点配置问题。首先从状态空间角度出发,利用双互质分解方法得到输出反馈镇定控制器的参数化形式。然后从频域角度,在保证广义闭环系统容许的条件下,研究闭环系统的零点配置问题,给出了系统具有不同零点的配置方法。最后通过数值算例证明了所提方法的有效性。

 关键词: 广义系统;双互质分解;零点配置;零极点对消;镇定控制器

 中图分类号: TP 273文献标志码: A

 Output Feedback Stabilization and Zero Placement on Descriptor Systems

 LIN Xiaoying, ZHANG Guoshan

 (School of Electrical Engineering and Automation, Tianjin University, Tianjin 300072, China)

 Abstract: Output feedback stabilization and zero placement of the linear timeinvariant descriptor systems are investigated. First, the parametrization of the output feedback controllers by doubly coprime factorization approach is used to stabilize the descriptor systems from the statespace perspective. Then, from the angle of the frequency domain, the zero placement problems of the closedloop system are discussed in the condition that the closedloop system is admissible, and the zero placement method is proposed to design different zeros. Finally, the numerical examples are given to show the effectiveness of the method.

 Key words: descriptor systems; doubly coprime factorization; zero placement; pole zero cancellation; stabilization controllers

收稿日期: 20130701

基金项目: 国家自然科学基金项目(61074088).

作者简介: 林晓颖(1987—),女,硕士研究生.*通信联系人.

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