Identification of Wiener-Hammerstein nonlinear systems with backlash operators

被引:2
作者
Brouri, Adil [1 ]
Oubouaddi, Hafid [1 ]
Ouannou, Abdelmalek [1 ]
Bouklata, Ali [1 ]
Giri, Fouad [2 ]
Chaoui, Fatima-Zahra [3 ]
机构
[1] Moulay Ismail Univ, L2MC Lab, ENSAM, Meknes, Morocco
[2] Normandie Univ, UNICAEN, Caen, France
[3] Mohamed V Univ, ENSAM, Rabat, Morocco
关键词
Nonlinear systems identification; Wiener-Hammerstein models; Backlash operator; Fourier analysis; Frequency approaches; FREQUENCY IDENTIFICATION;
D O I
10.1007/s40435-024-01460-1
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
In this paper, a new identification method is developed for Wiener-Hammerstein systems that contain memory nonlinearity of backlash type. The latter is flanked by two linear transfer functions that may be parametric or not. The proposed identification method is carried out in two stages. Firstly, the parameters (the lateral borders) of memory operator are identified using a set of constant inputs. In the second stage, an identification method based on Fourier analysis is developed to determine the frequency responses of both transfer functions. The performances of the proposed identification method are highlighted by simulation results. Finally, experimental application has been established to show the effectiveness of this method.
引用
收藏
页码:3733 / 3753
页数:21
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