Feedforward and Feedback Control Performance Assessment for Nonlinear Systems

A performance assessment method for nonlinear feedforward and feedback control systems is proposed in this paper. First, the existence of minimum variance performance bound for two nonlinear systems with different structures is analyzed, and the closed-loop model of nonlinear system is obtained wit...

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Main Authors: Zhiguo Wang, Jun Chen
Format: Article
Language:English
Published: Wiley 2014-01-01
Series:Abstract and Applied Analysis
Online Access:http://dx.doi.org/10.1155/2014/597805
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author Zhiguo Wang
Jun Chen
author_facet Zhiguo Wang
Jun Chen
author_sort Zhiguo Wang
collection DOAJ
description A performance assessment method for nonlinear feedforward and feedback control systems is proposed in this paper. First, the existence of minimum variance performance bound for two nonlinear systems with different structures is analyzed, and the closed-loop model of nonlinear system is obtained with the help of iterative orthogonal least squares identification method. Then, the technology of variance analysis is introduced to establish the variance contributions due to both disturbances and controller. A nonlinear performance index for the feedforward and feedback control systems is estimated using an ANOVA-like variance decomposition method. Finally, a meaningful example is simulated to show the effectiveness of our method.
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institution Kabale University
issn 1085-3375
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publishDate 2014-01-01
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series Abstract and Applied Analysis
spelling doaj-art-ea13df61b1e24136993e9074e0ef71bf2025-02-03T01:21:11ZengWileyAbstract and Applied Analysis1085-33751687-04092014-01-01201410.1155/2014/597805597805Feedforward and Feedback Control Performance Assessment for Nonlinear SystemsZhiguo Wang0Jun Chen1Key Laboratory of Advanced Process Control for Light Industry (Ministry of Education), Institute of Automation, Jiangnan University, Wux 214122, ChinaKey Laboratory of Advanced Process Control for Light Industry (Ministry of Education), Institute of Automation, Jiangnan University, Wux 214122, ChinaA performance assessment method for nonlinear feedforward and feedback control systems is proposed in this paper. First, the existence of minimum variance performance bound for two nonlinear systems with different structures is analyzed, and the closed-loop model of nonlinear system is obtained with the help of iterative orthogonal least squares identification method. Then, the technology of variance analysis is introduced to establish the variance contributions due to both disturbances and controller. A nonlinear performance index for the feedforward and feedback control systems is estimated using an ANOVA-like variance decomposition method. Finally, a meaningful example is simulated to show the effectiveness of our method.http://dx.doi.org/10.1155/2014/597805
spellingShingle Zhiguo Wang
Jun Chen
Feedforward and Feedback Control Performance Assessment for Nonlinear Systems
Abstract and Applied Analysis
title Feedforward and Feedback Control Performance Assessment for Nonlinear Systems
title_full Feedforward and Feedback Control Performance Assessment for Nonlinear Systems
title_fullStr Feedforward and Feedback Control Performance Assessment for Nonlinear Systems
title_full_unstemmed Feedforward and Feedback Control Performance Assessment for Nonlinear Systems
title_short Feedforward and Feedback Control Performance Assessment for Nonlinear Systems
title_sort feedforward and feedback control performance assessment for nonlinear systems
url http://dx.doi.org/10.1155/2014/597805
work_keys_str_mv AT zhiguowang feedforwardandfeedbackcontrolperformanceassessmentfornonlinearsystems
AT junchen feedforwardandfeedbackcontrolperformanceassessmentfornonlinearsystems