Title :
Simulating of Hydraulic Holding System of Large-Scale Forging Press Based on Iterative Learning Control
Author :
Yucai, Zhou ; Shaojun, Liu ; Zhongwei, Liu ; Yi, Deng ; Minghui, Huang
Author_Institution :
Central South Univ., Changsha
Abstract :
In this paper a new control strategy adopting opening loop ILC combined with PD control is stated for large-scale forging press which have such characteristic as process repetition strict initial process needed and a small quantity in every batch, based on analyzing hydraulic position holding system of moving beam on 30,000t huge water press; and a new method directly using PD control output as initial control output is stated. Experiments result indicated that this method has high constringency speed and can ensure initial process precision, and has distinctness effect for enhance moving beam position holding precision.
Keywords :
PD control; forging; hydraulic control equipment; iterative methods; large-scale systems; learning systems; open loop systems; PD control; hydraulic holding system; hydraulic position holding system; iterative learning control; large-scale forging press; process repetition strict initial process; Control systems; DH-HEMTs; Educational institutions; Electrical engineering; Gold; Large-scale systems; Open loop systems; PD control; Power engineering and energy; Water; Hydraulic position holding system; Iterative learning control; water press;
Conference_Titel :
Control Conference, 2007. CCC 2007. Chinese
Conference_Location :
Hunan
Print_ISBN :
978-7-81124-055-9
Electronic_ISBN :
978-7-900719-22-5
DOI :
10.1109/CHICC.2006.4347242
