计算机工程与应用2019，Vol.55Issue(8)：195-200,225,7.DOI:10.3778/j.issn.1002-8331.1711-0447
脉冲响应模型的闭环子空间辨识方法
Closed Loop Subspace Identification Method of Impulse Response Model
摘要
Abstract
In view of the fact that it is difficult to gather the open-loop data of the control system in practice, a direct iden-tification method of impulse response model based on subspace approach from closed loop data is presented. An orthogo-nal decomposition is first used to estimate the deterministic components of the joint input-output process. Then, closed loop identification problem can be converted to identify the plant with the deterministic components of the joint input-out-put process under open loop circumstance. Through exploiting the low triangular structure of Toeplitz matrix, the sub-space matrix consisting of impulse response coefficients is estimated row by row. The impulse response model is derived by averaging elements of the estimated subspace matrix. Three simulation examples of SISO numerical simulation, MIMO numerical simulation and Wood-Berry distillation process are used to compare the proposed method、PBSID_OPT and CVA. Results of several simulations show the good performance of the proposed method. The results of this paper have actual significance of reference and guidance for the application of subspace identification method in the modeling of actual industrial process.关键词
脉冲响应模型/子空间辨识/闭环辨识/建模Key words
impulse response model/ subspace identification/ closed loop identification/ modeling分类
信息技术与安全科学引用本文复制引用
陈亮,潘海鹏,吴平,周伟..脉冲响应模型的闭环子空间辨识方法[J].计算机工程与应用,2019,55(8):195-200,225,7.基金项目
山西省重点研发计划项目(No.201603D321128) （No.201603D321128）
山西省应用基础研究项目(No.201701D121062). （No.201701D121062）
