Improvements in steam temperature control on a modern oil-fired power-station boiler
作者:
R.M.Dunnett,
R.Wells,
期刊:
IEE Proceedings D (Control Theory and Applications)
(IET Available online 1980)
卷期:
Volume 127,
issue 1
页码: 7-12
年代: 1980
DOI:10.1049/ip-d.1980.0002
出版商: IEE
数据来源: IET
摘要:
Improvements in control strategy for steam temperature have been made at Fawley power station because of the changing emphasis, from base-load to load-following, and to two-shift operation. Saturation protection is included to prevent tube waterlogging; although the principle is well established, the implementation is superior to some others. A new valve characteristic is recommended, although, as a temporary expedient, gain adaption has been used to emulate the desired characteristic. Finally, the slow dynamics of the final temperature control are countered by a predictive calculation, backed up by a feedback trim. Experimental results are presented, and a suggestion is made for a further improvement in the predictive calculation, suitable for a digital implementation.
点击下载:
PDF
(772KB)
返 回