Frequency Domain Subspace Identification of Commensurate Fractional Order Input Time Delay Systems

被引：33
|
作者：
Li, Wang [1 ]
Peng, Cheng [1 ]
Wang, Yong [1 ]
机构：
[1] Univ Sci & Technol China, Dept Automat, Hefei 230026, Anhui, Peoples R China
来源：
INTERNATIONAL JOURNAL OF CONTROL AUTOMATION AND SYSTEMS | 2011年 / 9卷 / 02期
关键词：
Differential evolution; frequency domain identification; subspace method; time delay fractional order systems;
D O I：
10.1007/s12555-011-0213-4
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
A frequency domain subspace identification of fractional order systems with input time-delay is studied in this paper. A new identification method, which combines the merits of differential evolution (DE) algorithm and subspace identification algorithm in frequency domain, is presented. For the optimal search of fractional commensurate differential order and time delay parameters, the DE algorithm is applied. For fixed fractional commensurate differential order and time delay, subspace method is performed to obtain the state space model. Simulation results validate the proposed fractional order system identification method.
引用
收藏
页码：310 / 316
页数：7
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