NDLI: Multi-model adaptive control for the superheated steam temperature

Content Provider	IEEE Xplore Digital Library
Author	Wen-Jie Zhao Yug-Uang Niu Ji-Zhen Liu
Copyright Year	2002
Description	Author affiliation: Dept. of Power Eng., North China Electr. Power Univ., Hebei, China (Wen-Jie Zhao; Yug-Uang Niu; Ji-Zhen Liu)
Abstract	The superheated steam temperature process is a big-inertial and big-lagged process; moreover, its dynamic behavior varies widely as the MW load changes. In the paper, an adaptive cascade control strategy based on multiple models is presented. According to the different MW load, a set of linear models is developed and the controllers associated with each model are designed. By means of choosing an appropriate main/sub controller pair at the deferent MW load, the multi-pair controllers, which are robust, can satisfy the control performance specifications over the entire operating conditions of the plant. The main loop adopts IMC (internal model control) because of its straightforward handling of time-delay, and the sub loop adopts conventional P control. The simulated example, a supercritical once-through 600 MW boiler's superheated temperature control system, shows that the proposed control system has better adaptive capability over the entire operating conditions and it is robust, minimal in overshoot and fast in response.
Sponsorship	Hebei Univ. IEEE Syst., Man & Cybernetics Tech. Committe on Cybernetics
Starting Page	269
Ending Page	272
File Size	199870
Page Count	4
File Format	PDF
ISBN	0780375084
DOI	10.1109/ICMLC.2002.1176754
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2002-11-04
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Adaptive control Temperature control Control systems Programmable control Robust control Control system synthesis Adaptive systems Power system modeling PD control Pi control
Content Type	Text
Resource Type	Article

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