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Synchronization and tracking control for multi-motor driving servo systems with backlash and friction
International journal of robust and nonlinear control, 2016-09, Vol.26 (13), p.2745-2766
Zhao, Wei
Ren, Xuemei
Gao, Xuehui
2016
Volltextzugriff (PDF)
Details
Autor(en) / Beteiligte
Zhao, Wei
Ren, Xuemei
Gao, Xuehui
Titel
Synchronization and tracking control for multi-motor driving servo systems with backlash and friction
Ist Teil von
International journal of robust and nonlinear control, 2016-09, Vol.26 (13), p.2745-2766
Ort / Verlag
Bognor Regis: Blackwell Publishing Ltd
Erscheinungsjahr
2016
Quelle
Wiley-Blackwell Journals
Beschreibungen/Notizen
Summary This paper presents a novel switching controller incorporated with backlash and friction compensations, which is utilized to achieve speed synchronization among multi‐motor and load position tracking. The proposed controller consists of two parts: synchronization and tracking control in contact mode and robust control in backlash mode, where a function characterizing whether backlash occurs is used for switching between two modes. Using the proposed switching controller, several control objectives are achieved. Firstly, the coupling problem of speed synchronization and load tracking in contact mode is addressed by introducing a switching plane. Secondly, based on the switching plane, an improved prescribed performance function is introduced to attain load tracking with prescribed performances, and L∞ performance of speed synchronization is guaranteed by initialization method, maintaining the transient performance of synchronization behavior. Thirdly, the lumped uncertain nonlinearity including friction and other uncertain functions is compensated by Chebyshev neural network in contact mode. Furthermore, a robust control is adopted in backlash mode to make system traverse backlash at an exponential rate and simultaneously eliminate low‐speed crawling phenomenon of LuGre friction. Finally, comparative simulations on four‐motor driving servo system are provided to verify the effectiveness and reliability. Copyright © 2015 John Wiley & Sons, Ltd.
Sprache
Englisch
Identifikatoren
ISSN: 1049-8923
eISSN: 1099-1239
DOI: 10.1002/rnc.3470
Titel-ID: cdi_proquest_miscellaneous_1825556241
Format
–
Schlagworte
Backlash
,
backlash and friction compensations
,
Computer simulation
,
Contact
,
Controllers
,
Friction
,
multi-motor driving servo systems
,
neural networks
,
Switching
,
Synchronism
,
Synchronization
,
synchronization control
,
tracking control
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