Water Level Control of Boiler Drum Using One IEC61131-3-Based DCS

Author

Qiliang, Yang ; Jianchun, Xing ; Ping, Wang

Author_Institution

PLA Univ. of Sci .and Tech, Nanjing

fYear

2007

Firstpage

252

Lastpage

255

Abstract

The drum water level is a very important parameter of the boilers in power plants. One method, using FBD language in IEC61131-3 to implement the water level control system on the platform of the 893-DCS, is probed. On the basis of the description of the IEC61131-3-based DCS and the analysis of the dynamic process of the boiler drum water level, the two-level-tracking technology of the no-disturbance switch and the dead band approach in the control system are presented and discussed in detail. The good applications have proved that this water level control system is one reliable and open system.

Keywords

IEC standards; boilers; control system CAD; distributed control; field buses; level control; programmable controllers; thermal power stations; tracking; FBD language; IEC61131-3-based DCS; PLC language standard; boiler drum control; dead band approach; field bus; power plant; two-level-tracking technology; water level control system; Automatic control; Boilers; Control systems; Data engineering; Distributed control; Field buses; Level control; Logic devices; Power generation; Switches; Control; DCS; Drum Water Level; IEC61131-3;

fLanguage

English

Publisher

ieee

Conference_Titel

Control Conference, 2007. CCC 2007. Chinese

Conference_Location

Hunan

Print_ISBN

978-7-81124-055-9

Electronic_ISBN

978-7-900719-22-5

Type

conf

DOI

10.1109/CHICC.2006.4347120

Filename

4347120