The Application of DCS in the Drum Water Level Control

Abstract:

This paper introduces the thermal power plant boiler drum water level control, using cascade three-impulse control strategy, based on the distributed control system to realize the control of the drum water level. This paper analyzes the main variables affect the drum water level, the dynamic characteristics of the drum water level, the principle of the cascade three-impulse control strategy, brief introduction to the main function of the main and auxiliary loops, The basic idea and implementation methods of distributed control system and draw a simple logic diagram.

• Periodical: Advanced Materials Research (Volumes 655-657)
• Pages: 1419-1422
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.655-657.1419
• Online since: January 2013
• Authors: Wei Ping Liang, Jia Ju Zhang
• Keywords: Distributed Control System, Drum Water Level, Three-Impulse Control Strategy

References

[1] Yihui Jin: The Process Control (In Chinese), edited by Tsinghua University Press (1993), p.254

[2] Shuwen Li: The Design and Application of Boiler Distribute Control System of 125MW Unit Power Plant (In Chinese) (2006)

[3] Jibo Wang: Thermal power plant electrical control and DCS (In Chinese), Heilongjiang Science and Technology Information (2010)

[4] Information on http://www.hudong.com/wiki/DCS