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Controller Design by Error Shape and Steady-State Error Analysis for a Feed Drive System in CNC Milling Machine  

Lee Gun-Bok (숭실대학교 기계공학과)
Gil Hyeong-Gyeun (숭실대학교 대학원 기계공학과)
Publication Information
Journal of the Korean Society for Precision Engineering / v.22, no.3, 2005 , pp. 52-60 More about this Journal
Abstract
This paper deals with the position control fur a feed drive system in CNC milling machine, which utilizes a modified error signal for the elimination of steady-state error. A linear time-invariant (LTI) system has consistent properties in response to standard test signal inputs. Those also appear in an error curve acquired from the response. From such properties, constructed is an error model for the position control of the feed drive. And then added is the output of the error model to the current error signal. Consequently the resulting proportional control system brings performance improvement in view of the steady-state error. The effectiveness of the proposed scheme is confirmed through simulations and experiments.
Keywords
Error model; Error response curve; Error shape; Error signal modification; Steady-state error analysis;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
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