Contour Tracking Control for Direct Drive X-Y Table Based on Equivalent Errors Model

Zhi Tao Wu; Jian Ying Xu

doi:10.4028/www.scientific.net/AMR.945-949.1673

Paper Titles

Study on Tool Path Generation and Direct Interpolation Method
p.1657

Research on Contouring Control of Dual Linear Motors
p.1661

Thermal Error Compensation and Modeling for CNC Boring and Milling Center
p.1665

Thermal Error Compensation on Boring & Milling Machining Center Feed System Based on PMAC
p.1669

Contour Tracking Control for Direct Drive X-Y Table Based on Equivalent Errors Model
p.1673

Simulation and Analysis for Cooling System of High-Speed Motorized Spindle
p.1677

Design and Development of Availability Information System for Heavy CNC Equipment Based on Cooperation of Network
p.1681

Numerical Control for Multifunction Machining Based on Dual MCU
p.1686

Research on Optimization of Rotation Angle and Singular Area Handling in Five-Axis Post-Processing
p.1690

HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 945-949Contour Tracking Control for Direct Drive X-Y...

Contour Tracking Control for Direct Drive X-Y Table Based on Equivalent Errors Model

Abstract:

For the contour accuracy of direct drive X-Y servo system is susceptible to changes of the load parameters and nonlinear disturbances including the friction , A quadratic optimal position controller with sliding contour tracking controller based on equivalent errors model is proposed to improve contour tracking performance and the robustness. The position controller is designed by the factorization of quadratic optimization on frequency domain. Based on Equivalent Errors model including the equivalent contour error and tangential error, the contour tracking problem is converted to the stabilization of error dynamic system. Simulation and experimental results show that the effects of nonlinear disturbances are reduced effectively and the designed controller has high contour tracking accuracy and strong robustness.