標題: | Proportional-Derivative Unknown Input Observer Design Using Descriptor System Approach for Non-Minimum Phase Systems |
作者: | Ting, Huan-Chan Chang, Jeang-Lin Chen, Yon-Ping 電控工程研究所 Institute of Electrical and Control Engineering |
關鍵字: | Descriptor system;non-minimum phase;state estimation;unknown input observer |
公開日期: | 1-十月-2011 |
摘要: | This paper considers the problem of estimating the state of an MIMO linear system with unknown inputs in the state and output. Through a series of linear transformations in the state and output equations, the original system can be transformed into a descriptor system form. The proposed proportional derivative observer can accurately estimate the system state and avoid the peaking phenomenon. Moreover, the approach developed in this paper does not require the derivatives of the output and can be applied to the system with unstable zeros (with respect to the relation between the output and the unknown input). Finally, our algorithm can prove the valid feasibility and the property of disturbance attenuation through demonstrating a simulation-base example. |
URI: | http://dx.doi.org/10.1007/s12555-011-0505-8 http://hdl.handle.net/11536/14779 |
ISSN: | 1598-6446 |
DOI: | 10.1007/s12555-011-0505-8 |
期刊: | INTERNATIONAL JOURNAL OF CONTROL AUTOMATION AND SYSTEMS |
Volume: | 9 |
Issue: | 5 |
起始頁: | 850 |
結束頁: | 856 |
顯示於類別: | 期刊論文 |