Title :
Data-driven control for noncircular turning tool servo system
Author :
Rongmin, Cao ; Zhongsheng, Hou ; Huixing, Zhou ; Jingli, Guan
Author_Institution :
Sch. of Autom., Beijing Inf. Sci. & Technol. Univ., Beijing, China
Abstract :
Based on the tracking and disturbance rejection requirements for noncircular turning process (NCTP), data-driven control method is applied in tool servo system. A model-free learning adaptive (MFLAC) composite control based noncircular turning process metering strategy with feedforward control and adaptive compensation is presented. In this scheme, a 3-tier composite control structure is adopted, feedforward control, a MFLAC feedback control and a non-linear Radial Basis Function (RBF) based compensator. This modularized controller design makes use of the periodicity of the NCTP effectively and improves the controller performance greatly.
Keywords :
adaptive control; compensation; feedback; feedforward; learning systems; machine tools; radial basis function networks; servomechanisms; turning (machining); MFLAC composite control; NCTP metering strategy; RBF based compensator; adaptive compensation; data driven control method; disturbance rejection; feedback control; feedforward control; model free learning adaptive control; noncircular turning process; noncircular turning tool servo system; radial basis function; tool servo system; Adaptation models; Feedforward neural networks; Friction; Mathematical model; Process control; Servomotors; Turning; A mode-free learning adaptive control (MFLAC); data-driven control; disturbance rejection; noncircular turning;
Conference_Titel :
Control Conference (CCC), 2012 31st Chinese
Conference_Location :
Hefei
Print_ISBN :
978-1-4673-2581-3
