NDLI: Override control of furnace combustion system

Content Provider	IEEE Xplore Digital Library
Author	Wei Huang Yixin Zhao Qian Qi Qiaoli Huang Qiang He Wenjing Xie
Copyright Year	2008
Description	Author affiliation: Coll. of Comput. & Inf. Sci., Southwest Univ., Beibei (Wei Huang; Yixin Zhao; Qian Qi; Qiaoli Huang; Qiang He; Wenjing Xie)
Abstract	The furnace combustion system of circulating fluidized bed boiler (CFBB) must ensure the steam pressure as a constant via controlling the coal quantity and wind flow. Another important role is to avoid the temperature varying excessively which will result in the high temperature agglomeration or low temperature agglomeration in boiler. Based on the model and characteristic analysis of combustion system, this paper presents an override control solution which can satisfy the various control tasks requirement. In this design, the control strategy is selected automatically according to the furnace temperature value. When the temperature is normal, abnormal or unsafe, the conventional control, limiting control or shut-down devices with warning will be triggered respectively. The dynamic control process is simulated on an object model, and the quiver phenomenon that often occurs in override control is analyzed and improved. The simulation result shows that this design can deal with the control task of both steam pressure and the agglomeration at the same time, and ensure the device safety and system continuous. Whatpsilas more, the design is proved to be effective in the Wangjiazhai power plant, mining bureau of Shuichen, Guizhou province.
Starting Page	1
Ending Page	6
File Size	586176
Page Count	6
File Format	PDF
ISBN	9781424439089
DOI	10.1109/ISSCAA.2008.4776274
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-12-10
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Fluid flow control Quiver Process control Control systems Boilers Pressure control Combustion Fluidization TSK fuzzy system Furnaces Automatic control Temperature control CFBB Override control
Content Type	Text
Resource Type	Article

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