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

被引：0

作者：

Li, Xudong ^{[1
]}

Xu, Fang ^{[2
]}

Wang, Shuzhi ^{[3
]}

Gong, Bo ^{[1
]}

Zhang, Changli ^{[1
]}

Liu, Ziying ^{[1
]}

Wang, Fengqin ^{[1
]}

机构：

[1] Shougang Res Inst Technol, Beijing 100043, Peoples R China

[2] Shougang Jingtang Iron & Steel Co Ltd, Tangshan 063200, Yulin, Peoples R China

[3] Shougang Qianan Iron & Steel Co, Qianan 064400, Peoples R China

来源：

PROCEEDINGS OF THE 2018 INTERNATIONAL CONFERENCE ON MECHANICAL, ELECTRONIC, CONTROL AND AUTOMATION ENGINEERING (MECAE 2018) | 2018年 / 149卷

关键词：

Hot Strip Rolling; Ultra-fast Cooling; Flux Control; PI Controller; MICROSTRUCTURAL EVOLUTION; MECHANICAL-PROPERTIES; HIGH-STRENGTH; STEEL; PLATE;

D O I：

暂无

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

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.

引用

页码：839 / 844

页数：6

共 30 条

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