Precision control and compensation of machine tools and servomotor via disturbance observer
The computerized numerically-controlled machine tool CNC is a highly integrated mechatronic system in manufacturing. However, uncertainties degrade its motion accuracy. In order to estimate the uncertainties of the parameter variation and current measurement , in this paper, a state-space disturbanc...
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Academic Journals Center of Shanghai Normal University
2012-10-01
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Online Access: | http://qktg.shnu.edu.cn/zrb/shsfqkszrb/ch/reader/create_pdf.aspx?file_no=201205006&year_id=2012&quarter_id=5&falg=1 |
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doaj-7da30d59494040a2bd47ed23464637842020-11-25T00:47:22ZengAcademic Journals Center of Shanghai Normal UniversityJournal of Shanghai Normal University (Natural Sciences)1000-51371000-51372012-10-01415475482201205006Precision control and compensation of machine tools and servomotor via disturbance observerKANG Qi0LIN Jun1College of Information,Mechanical and Electrical,Shanghai Normal UniversityCollege of Information,Mechanical and Electrical,Shanghai Normal UniversityThe computerized numerically-controlled machine tool CNC is a highly integrated mechatronic system in manufacturing. However, uncertainties degrade its motion accuracy. In order to estimate the uncertainties of the parameter variation and current measurement , in this paper, a state-space disturbance observer is successfully applied to servomotors in the velocity and the current loops. Via the modeling of CNC machine tool and servo motor, the parameters affecting the accuracy are continuously variated and an auto tuning procedure is applied to identify the varied parameters of the motor. The experimental results show that the influences on the velocity and current caused by the linear errors ,external disturbance and etc have improved significantly, and eventually the effect of suppressing the torque ripple is achieved .http://qktg.shnu.edu.cn/zrb/shsfqkszrb/ch/reader/create_pdf.aspx?file_no=201205006&year_id=2012&quarter_id=5&falg=1CNCservomotorstatespace disturbance observerautotuning |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
KANG Qi LIN Jun |
spellingShingle |
KANG Qi LIN Jun Precision control and compensation of machine tools and servomotor via disturbance observer Journal of Shanghai Normal University (Natural Sciences) CNC servomotor statespace disturbance observer autotuning |
author_facet |
KANG Qi LIN Jun |
author_sort |
KANG Qi |
title |
Precision control and compensation of machine tools and servomotor via disturbance observer |
title_short |
Precision control and compensation of machine tools and servomotor via disturbance observer |
title_full |
Precision control and compensation of machine tools and servomotor via disturbance observer |
title_fullStr |
Precision control and compensation of machine tools and servomotor via disturbance observer |
title_full_unstemmed |
Precision control and compensation of machine tools and servomotor via disturbance observer |
title_sort |
precision control and compensation of machine tools and servomotor via disturbance observer |
publisher |
Academic Journals Center of Shanghai Normal University |
series |
Journal of Shanghai Normal University (Natural Sciences) |
issn |
1000-5137 1000-5137 |
publishDate |
2012-10-01 |
description |
The computerized numerically-controlled machine tool CNC is a highly integrated mechatronic system in manufacturing. However, uncertainties degrade its motion accuracy. In order to estimate the uncertainties of the parameter variation and current measurement , in this paper, a state-space disturbance observer is successfully applied to servomotors in the velocity and the current loops. Via the modeling of CNC machine tool and servo motor, the parameters affecting the accuracy are continuously variated and an auto tuning procedure is applied to identify the varied parameters of the motor. The experimental results show that the influences on the velocity and current caused by the linear errors ,external disturbance and etc have improved significantly, and eventually the effect of suppressing the torque ripple is achieved . |
topic |
CNC servomotor statespace disturbance observer autotuning |
url |
http://qktg.shnu.edu.cn/zrb/shsfqkszrb/ch/reader/create_pdf.aspx?file_no=201205006&year_id=2012&quarter_id=5&falg=1 |
work_keys_str_mv |
AT kangqi precisioncontrolandcompensationofmachinetoolsandservomotorviadisturbanceobserver AT linjun precisioncontrolandcompensationofmachinetoolsandservomotorviadisturbanceobserver |
_version_ |
1725260224914259968 |