Model Error Compensator with Parallel Feed-Forward Filter

Design methods for control systems based on plant models have been developed for many years. If a mathematical model is accurately obtained from the input-output relation of a plant, then the designed controller for the model performs well for the control system connected with the plant. However, th...

Full description

Bibliographic Details
Main Authors: Gou Ichimasa, Hiroshi Okajima, Kosuke Okumura, Nobutomo Matsunaga
Format: Article
Language:English
Published: Taylor & Francis Group 2017-09-01
Series:SICE Journal of Control, Measurement, and System Integration
Subjects:
Online Access:http://dx.doi.org/10.9746/jcmsi.10.468
_version_ 1797661076710490112
author Gou Ichimasa
Hiroshi Okajima
Kosuke Okumura
Nobutomo Matsunaga
author_facet Gou Ichimasa
Hiroshi Okajima
Kosuke Okumura
Nobutomo Matsunaga
author_sort Gou Ichimasa
collection DOAJ
description Design methods for control systems based on plant models have been developed for many years. If a mathematical model is accurately obtained from the input-output relation of a plant, then the designed controller for the model performs well for the control system connected with the plant. However, the desired control performance might not be achieved when there is an undeniable modeling error. To overcome this problem, the authors proposed the model error compensator (MEC) to minimize the effect of the modeling error between the plant and the model. The MEC works well for many control systems, such as unstable systems and non-linear systems. However applying the MEC to non-minimum-phase plants is difficult because of their control system structures. Non-minimum-phase plants are well known for being difficult to control. This paper proposes an MEC with a parallel feed-forward filter (PFF). The PFF is used to cancel the non-minimum-phase characteristics of the plant. The effectiveness of the proposed method is illustrated through numerical examples.
first_indexed 2024-03-11T18:39:06Z
format Article
id doaj.art-ba1b8dd699644864a6fd99d2882b083e
institution Directory Open Access Journal
issn 1884-9970
language English
last_indexed 2024-03-11T18:39:06Z
publishDate 2017-09-01
publisher Taylor & Francis Group
record_format Article
series SICE Journal of Control, Measurement, and System Integration
spelling doaj.art-ba1b8dd699644864a6fd99d2882b083e2023-10-12T13:43:54ZengTaylor & Francis GroupSICE Journal of Control, Measurement, and System Integration1884-99702017-09-0110546847510.9746/jcmsi.10.46812103165Model Error Compensator with Parallel Feed-Forward FilterGou Ichimasa0Hiroshi Okajima1Kosuke Okumura2Nobutomo Matsunaga3Graduate School of Science and Technology, Kumamoto UniversityGraduate School of Science and Technology, Kumamoto UniversityGraduate School of Science and Technology, Kumamoto UniversityGraduate School of Science and Technology, Kumamoto UniversityDesign methods for control systems based on plant models have been developed for many years. If a mathematical model is accurately obtained from the input-output relation of a plant, then the designed controller for the model performs well for the control system connected with the plant. However, the desired control performance might not be achieved when there is an undeniable modeling error. To overcome this problem, the authors proposed the model error compensator (MEC) to minimize the effect of the modeling error between the plant and the model. The MEC works well for many control systems, such as unstable systems and non-linear systems. However applying the MEC to non-minimum-phase plants is difficult because of their control system structures. Non-minimum-phase plants are well known for being difficult to control. This paper proposes an MEC with a parallel feed-forward filter (PFF). The PFF is used to cancel the non-minimum-phase characteristics of the plant. The effectiveness of the proposed method is illustrated through numerical examples.http://dx.doi.org/10.9746/jcmsi.10.468internal model controlnon-minimum-phase systemmodel error compensator
spellingShingle Gou Ichimasa
Hiroshi Okajima
Kosuke Okumura
Nobutomo Matsunaga
Model Error Compensator with Parallel Feed-Forward Filter
SICE Journal of Control, Measurement, and System Integration
internal model control
non-minimum-phase system
model error compensator
title Model Error Compensator with Parallel Feed-Forward Filter
title_full Model Error Compensator with Parallel Feed-Forward Filter
title_fullStr Model Error Compensator with Parallel Feed-Forward Filter
title_full_unstemmed Model Error Compensator with Parallel Feed-Forward Filter
title_short Model Error Compensator with Parallel Feed-Forward Filter
title_sort model error compensator with parallel feed forward filter
topic internal model control
non-minimum-phase system
model error compensator
url http://dx.doi.org/10.9746/jcmsi.10.468
work_keys_str_mv AT gouichimasa modelerrorcompensatorwithparallelfeedforwardfilter
AT hiroshiokajima modelerrorcompensatorwithparallelfeedforwardfilter
AT kosukeokumura modelerrorcompensatorwithparallelfeedforwardfilter
AT nobutomomatsunaga modelerrorcompensatorwithparallelfeedforwardfilter