Year	2017
Authors	Ruei-Yu Huang,Chao-Yi Liu, An-Chen Lee
Paper Title	High speed tracking control of ball screw drives
Conference Name	5th Asia Conference on Mechanical and Materials Engineering (ACMME 2017)
Location	Tokyo, Japan
Peroid	Jun. 09-11, 2017
Vol.No	241
From	1
To	7
Paper Type	Conference Papers,Poster Display
Paper Level	Others
Total Pages	7
Number Of Authors	3
Abstract	This paper presents a new method to achieve the requirement of high speed and high precision for ball screw drive. First, a PI controller is adopted to increase the equivalent structural damping in the velocity loop. Next, the design of the position controller is implemented by a two-stage method. The Doubly Coprime Factorization Disturbance Observer (DCFDOB) is developed to suppress disturbance and resist modelling error in the inner loop, while the outer loop is then designed based on method to extend the system bandwidth over first resonant frequency so that high speed and high accuracy can be achieved. Finally, a feedforward controller is implemented to improve tracking performance. The experiment results showed that the proposed method has smaller tracking error and better performance for suppressing disturbance when compared to the conventional cascaded P-PI control.
Reference URL	http://10.1088/1757-899X/241/1/012030
Date of Publication	2017-11-01
Language	English