Simulation and Analysis of Feedforward Automatic Gauge Control for a Hot Strip Finishing Mill
In order to fully understand dynamic behavior of the thickness variation and conduct off-line process tuning,a dynamic simulator for the feedforward Automatic Gauge Control (AGC) for a hot strip finishing mill in China Steel Corporation is developed.One of the major factors influencing on deviation of delivery thickness of the steel strip is the temperature variation caused by cyclic contact between the steel strip and beams,which transfer the strip in the hot rolling process.This temperature difference brings about hardness variation along the strip,which is known as skid marks.Simulation results and system analysis verify that the feedforward AGC system is capable of overcoming the high frequency thickness variation disturbed by the cyclic temperature difference,which usually cannot be effectively compensated by regular gaugemeter AGC feedback loop.A strategy to locate the optimal feedforward gain is also proposed.
Feedforward automatic gauge control Hot strip mills Industrial automation Manufacturing process simulation
Chi-Cheng Cheng Lan-Yuan Hsu Yuan-Liang Hsu Po-Tsang Chen
Department of Mechanical and Electro-Mechanical Engineering,National Sun Yat-sen University, Kaohsiu Steel & Aluminum R&D Department, China Steel Corporation, Kaohsiung, Taiwan 81207, R.O.C.
国际会议
重庆
英文
471-475
2011-06-23（万方平台首次上网日期，不代表论文的发表时间）