High-Precision Header Flux Control of Ultra-Fast Cooling in Hot Strip Mill By PI Controlle

DOI

10.2991/mecae-18.2018.146How to use a DOI?

Keywords

Hot Strip Rolling; Ultra-fast Cooling; Flux Control; PI Controller.

Abstract

A new header flux controller of an ultra-fast cooling (UFC) system was investigated during hot strip rolling. The UFC header flux was calibrated by changing the opening rate of the adjusting valve from 0% to 95% and, reversely, from 95% to 0%, in increments of 5%. The results showed that the header flux was rarely influenced by the changing direction of the adjusting valve. Based on the analysis of the flux adjusting, the definition of adjusting-efficiency (A-E) of flux was introduced and the corresponding equation was established. A Proportion-Integral (PI) controller, based on A-E, was employed to implement the closed-loop control of the header flux. The results from the on-site implementation indicated that the flux deviation between target and measured values was less than ±1.0m3/h.

Copyright

© 2018, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Xudong Li
AU  - Fang Xu
AU  - Shuzhi Wang
AU  - Bo Gong
AU  - Changli Zhang
AU  - Ziying Liu
AU  - Fengqin Wang
PY  - 2018/03
DA  - 2018/03
TI  - High-Precision Header Flux Control of Ultra-Fast Cooling in Hot Strip Mill By PI Controlle
BT  - Proceedings of the 2018 International Conference on Mechanical, Electronic, Control and Automation Engineering (MECAE 2018)
PB  - Atlantis Press
SP  - 179
EP  - 184
SN  - 2352-5401
UR  - https://doi.org/10.2991/mecae-18.2018.146
DO  - 10.2991/mecae-18.2018.146
ID  - Li2018/03
ER  -