Improvement of transient response of 2DOF servo system by controller switching

A servo system is generally utilized because it excels at the tracking performance and the disturbance cancellation. However, it sometimes causes an undesirable overshoot in transient responses caused by temporary disturbances such as the impulse disturbance. In such cases, the transient response be...

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Main Authors: Tomoharu IIDA, Yuichi CHIDA, Yuichi IKEDA
Format: Article
Language:Japanese
Published: The Japan Society of Mechanical Engineers 2014-09-01
Series:Nihon Kikai Gakkai ronbunshu
Subjects:
Online Access:https://www.jstage.jst.go.jp/article/transjsme/80/817/80_2014dr0268/_pdf/-char/en
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author Tomoharu IIDA
Yuichi CHIDA
Yuichi IKEDA
author_facet Tomoharu IIDA
Yuichi CHIDA
Yuichi IKEDA
author_sort Tomoharu IIDA
collection DOAJ
description A servo system is generally utilized because it excels at the tracking performance and the disturbance cancellation. However, it sometimes causes an undesirable overshoot in transient responses caused by temporary disturbances such as the impulse disturbance. In such cases, the transient response becomes deteriorated in comparison with the one by the regulator. A method for the improvement of the transient response of the servo system by using controller switching has been proposed. In the method, the controller is switched appropriately between servo system and regulator based on estimated disturbance signal. In addition, the stability of the proposed system is guaranteed by the common solution of Lyapunov inequalities. It is verified that a switching control method improves the transient response which is caused by temporary disturbances such as the impulse disturbance. However, tracking performance sometimes deteriorates when the tracking command and the disturbance are applied to the system at the same time. In the present paper, a novel method for improvement of deterioration in tracking performance by using two degrees of freedom control structure is proposed. By the method, it is possible to improve the tracking response as well as the transient response which is caused by the temporary disturbances. The effectiveness of the proposed method is verified by the two-inertia vibration experimental system by numerical simulations and experiments.
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spelling doaj.art-899de90de79841a796fced5db3b849ed2022-12-22T04:13:52ZjpnThe Japan Society of Mechanical EngineersNihon Kikai Gakkai ronbunshu2187-97612014-09-0180817DR0268DR026810.1299/transjsme.2014dr0268transjsmeImprovement of transient response of 2DOF servo system by controller switchingTomoharu IIDA0Yuichi CHIDA1Yuichi IKEDA2Department of Mechanical Systems Engineering, Graduate School of Science and Technology, Shinshu UniversityDepartment of Mechanical Systems Engineering, Faculty of Engineering, Shinshu UniversityDepartment of Mechanical Systems Engineering, Faculty of Engineering, Shinshu UniversityA servo system is generally utilized because it excels at the tracking performance and the disturbance cancellation. However, it sometimes causes an undesirable overshoot in transient responses caused by temporary disturbances such as the impulse disturbance. In such cases, the transient response becomes deteriorated in comparison with the one by the regulator. A method for the improvement of the transient response of the servo system by using controller switching has been proposed. In the method, the controller is switched appropriately between servo system and regulator based on estimated disturbance signal. In addition, the stability of the proposed system is guaranteed by the common solution of Lyapunov inequalities. It is verified that a switching control method improves the transient response which is caused by temporary disturbances such as the impulse disturbance. However, tracking performance sometimes deteriorates when the tracking command and the disturbance are applied to the system at the same time. In the present paper, a novel method for improvement of deterioration in tracking performance by using two degrees of freedom control structure is proposed. By the method, it is possible to improve the tracking response as well as the transient response which is caused by the temporary disturbances. The effectiveness of the proposed method is verified by the two-inertia vibration experimental system by numerical simulations and experiments.https://www.jstage.jst.go.jp/article/transjsme/80/817/80_2014dr0268/_pdf/-char/envibration controldisturbance observertransient responseservo systemdigital control
spellingShingle Tomoharu IIDA
Yuichi CHIDA
Yuichi IKEDA
Improvement of transient response of 2DOF servo system by controller switching
Nihon Kikai Gakkai ronbunshu
vibration control
disturbance observer
transient response
servo system
digital control
title Improvement of transient response of 2DOF servo system by controller switching
title_full Improvement of transient response of 2DOF servo system by controller switching
title_fullStr Improvement of transient response of 2DOF servo system by controller switching
title_full_unstemmed Improvement of transient response of 2DOF servo system by controller switching
title_short Improvement of transient response of 2DOF servo system by controller switching
title_sort improvement of transient response of 2dof servo system by controller switching
topic vibration control
disturbance observer
transient response
servo system
digital control
url https://www.jstage.jst.go.jp/article/transjsme/80/817/80_2014dr0268/_pdf/-char/en
work_keys_str_mv AT tomoharuiida improvementoftransientresponseof2dofservosystembycontrollerswitching
AT yuichichida improvementoftransientresponseof2dofservosystembycontrollerswitching
AT yuichiikeda improvementoftransientresponseof2dofservosystembycontrollerswitching