Robust control of pantograph‐catenary system: Comparison of 1‐DOF‐based and 2‐DOF‐based control systems

Abstract Compared to control bandwidth, low‐frequency uncertainties or disturbances like step signals can be well rejected by many methods having two‐degree‐of‐freedom (2‐DOF). Due to robustness constraint, technically more challenging is the rejection of medium frequencies, especially for bandwidth...

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Autores principales:	Pan Yu, Kang‐Zhi Liu, Xiaoli Li, Makoto Yokoyama
Formato:	article
Lenguaje:	EN
Publicado:	Wiley 2021
Materias:	Control engineering systems. Automatic machinery (General) TJ212-225
Acceso en línea:	https://doaj.org/article/1ba325426ae34401939daaf83b718a65
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spelling	oai:doaj.org-article:1ba325426ae34401939daaf83b718a652021-11-18T06:47:31ZRobust control of pantograph‐catenary system: Comparison of 1‐DOF‐based and 2‐DOF‐based control systems1751-86521751-864410.1049/cth2.12190https://doaj.org/article/1ba325426ae34401939daaf83b718a652021-12-01T00:00:00Zhttps://doi.org/10.1049/cth2.12190https://doaj.org/toc/1751-8644https://doaj.org/toc/1751-8652Abstract Compared to control bandwidth, low‐frequency uncertainties or disturbances like step signals can be well rejected by many methods having two‐degree‐of‐freedom (2‐DOF). Due to robustness constraint, technically more challenging is the rejection of medium frequencies, especially for bandwidth‐limited systems. Here, the equivalent‐input‐disturbance (EID) approach is extended to deal with the main medium‐frequency oscillation of a pantograph‐catenary system. First, a general EID estimator is developed with a low‐frequency estimator as a special case. Then, a fair comparison is conducted to clarify the essential differences between the conventional 1‐DOF‐based and the developed 2‐DOF‐based control systems. Furthermore, a robust stability condition is derived for the 2‐DOF‐based closed‐loop control system. A design algorithm together with design guidelines is provided, where the frequency characteristics of the uncertainties are utilized in the parameter design. Finally, simulations are carried out to validate the developed 2‐DOF‐based method for the pantograph‐catenary system in realistic environment.Pan YuKang‐Zhi LiuXiaoli LiMakoto YokoyamaWileyarticleControl engineering systems. Automatic machinery (General)TJ212-225ENIET Control Theory & Applications, Vol 15, Iss 18, Pp 2258-2270 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Control engineering systems. Automatic machinery (General) TJ212-225
spellingShingle	Control engineering systems. Automatic machinery (General) TJ212-225 Pan Yu Kang‐Zhi Liu Xiaoli Li Makoto Yokoyama Robust control of pantograph‐catenary system: Comparison of 1‐DOF‐based and 2‐DOF‐based control systems
description	Abstract Compared to control bandwidth, low‐frequency uncertainties or disturbances like step signals can be well rejected by many methods having two‐degree‐of‐freedom (2‐DOF). Due to robustness constraint, technically more challenging is the rejection of medium frequencies, especially for bandwidth‐limited systems. Here, the equivalent‐input‐disturbance (EID) approach is extended to deal with the main medium‐frequency oscillation of a pantograph‐catenary system. First, a general EID estimator is developed with a low‐frequency estimator as a special case. Then, a fair comparison is conducted to clarify the essential differences between the conventional 1‐DOF‐based and the developed 2‐DOF‐based control systems. Furthermore, a robust stability condition is derived for the 2‐DOF‐based closed‐loop control system. A design algorithm together with design guidelines is provided, where the frequency characteristics of the uncertainties are utilized in the parameter design. Finally, simulations are carried out to validate the developed 2‐DOF‐based method for the pantograph‐catenary system in realistic environment.
format	article
author	Pan Yu Kang‐Zhi Liu Xiaoli Li Makoto Yokoyama
author_facet	Pan Yu Kang‐Zhi Liu Xiaoli Li Makoto Yokoyama
author_sort	Pan Yu
title	Robust control of pantograph‐catenary system: Comparison of 1‐DOF‐based and 2‐DOF‐based control systems
title_short	Robust control of pantograph‐catenary system: Comparison of 1‐DOF‐based and 2‐DOF‐based control systems
title_full	Robust control of pantograph‐catenary system: Comparison of 1‐DOF‐based and 2‐DOF‐based control systems
title_fullStr	Robust control of pantograph‐catenary system: Comparison of 1‐DOF‐based and 2‐DOF‐based control systems
title_full_unstemmed	Robust control of pantograph‐catenary system: Comparison of 1‐DOF‐based and 2‐DOF‐based control systems
title_sort	robust control of pantograph‐catenary system: comparison of 1‐dof‐based and 2‐dof‐based control systems
publisher	Wiley
publishDate	2021
url	https://doaj.org/article/1ba325426ae34401939daaf83b718a65
work_keys_str_mv	AT panyu robustcontrolofpantographcatenarysystemcomparisonof1dofbasedand2dofbasedcontrolsystems AT kangzhiliu robustcontrolofpantographcatenarysystemcomparisonof1dofbasedand2dofbasedcontrolsystems AT xiaolili robustcontrolofpantographcatenarysystemcomparisonof1dofbasedand2dofbasedcontrolsystems AT makotoyokoyama robustcontrolofpantographcatenarysystemcomparisonof1dofbasedand2dofbasedcontrolsystems
_version_	1718424401003675648

Robust control of pantograph‐catenary system: Comparison of 1‐DOF‐based and 2‐DOF‐based control systems

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