Title :
Error Compensation Research for Macro/Micro Dual-drive System
Author :
Xiangjiang, Wang ; Yi, Yang
Author_Institution :
Sch. of Mech. Eng., Univ. of South China, Hengyang, China
Abstract :
The Macro/Micro Dual-drive experiment system with numerical control working platform is built. The ball screw drives the working platform macroscopic motion. The giant magnetostrictive actuator (GMA) is used to compensate the microcosmic motion error. It is proposed that the transfer function of the GMA cascaded the rate-independent hysteresis model to structure GMA system model. The variable structure control based on the decomposition is proposed, and the adaptive control law for the variable structure control is deduced from the Lyapunov stability theorem. The experiment results show that the motion error of ball screw is compensated after a dynamic compensation control is operated to the GMA, and the motion precision of the working platform is markedly improved.
Keywords :
Lyapunov methods; adaptive control; ball screws; drives; error compensation; micromechanical devices; numerical control; variable structure systems; Lyapunov stability theorem; adaptive control law; ball screw drives; dynamic compensation control; error compensation research; giant magnetostrictive actuator; macro dual-drive experiment system; micro dual-drive experiment system; numerical control working platform; rate-independent hysteresis model; structure GMA system model; transfer function; variable structure control; Actuators; Adaptation model; Dynamics; Fasteners; Hysteresis; Magnetic hysteresis; Adaptive; Error; Hysteresis; Macro/Microdual-drive system;
Conference_Titel :
Measuring Technology and Mechatronics Automation (ICMTMA), 2011 Third International Conference on
Conference_Location :
Shangshai
Print_ISBN :
978-1-4244-9010-3
DOI :
10.1109/ICMTMA.2011.302
