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Model‐based feedforward compensation for disturbance during inching and reciprocating motions
Author(s) -
Yamamoto Masafumi,
Iwasaki Makoto,
Ito Kazuaki,
Matsui Nobuyuki
Publication year - 2011
Publication title -
electrical engineering in japan
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.136
H-Index - 28
eISSN - 1520-6416
pISSN - 0424-7760
DOI - 10.1002/eej.21054
Subject(s) - feed forward , reciprocating motion , control theory (sociology) , nonlinear system , compensation (psychology) , disturbance (geology) , control engineering , computer science , ball screw , engineering , control (management) , artificial intelligence , mechanical engineering , physics , bearing (navigation) , quantum mechanics , nut , psychoanalysis , biology , psychology , paleontology
This paper presents a feedforward compensation approach for nonlinear disturbances in ball‐screw‐driven table positioning systems. The compensator design is focused on minimizing the effects of nonlinear disturbances on positioning performance. This is achieved through the use of a mathematical model of precise micrometer disturbance characteristics produced by nonlinear spring behaviors during inching and reciprocating motions. Based on this model, feedforward disturbance compensation is applied in order to improve the disturbance suppression capability. The effectiveness of the proposed positioning control approach has been verified by experiments using a table drive system on a machine stand. © 2010 Wiley Periodicals, Inc. Electr Eng Jpn, 174(3): 34–44, 2011; Published online in Wiley Online Library ( wileyonlinelibrary.com ). DOI 10.1002/eej.21054