Subspace Identification for Commensurate Fractional Order Systems Using Instrumental Variables

摘要：

This paper focuses on the identification of commensurate fractional order systems in time domain. A novel identification method is proposed to determine the coefficient matrixes and fractional differential order. The proposed method is based on principle component analysis (PCA) in subspace family,which has been successfully applied in identifying traditional integer order systems. Utilizing the cost function,the problem of estimating the fractional differential order is transformed into parameter optimization process. An instrumental variable (IV) is used to eliminate the bias of identification results. Numerical simulation validates the proposed method.

作者: LIAO Zeng PENG Cheng WANG Yong

作者单位: Department of Automation,University of Science and Technology of China,Hefei 230027,P.R.China

会议类型: 国际会议

会议名称: The 30th Chinese Control Conference(第三十届中国控制会议)

会议地点: 烟台

会议语种:英文

页码: 1-5

在线出版日期: 2011-07-01（万方平台首次上网日期，不代表论文的发表时间）