Coordinated control of circulating fluidized bed boiler based on the fuzzy PID control

Author

Li, Xiao-Feng ; Zhang, Xi ; Zhang, Weidong

Author_Institution

Electr. Power Res. Inst., Guangdong Power Group Co., Guangzhou, China

fYear

2012

fDate

6-8 Aug. 2012

Firstpage

1

Lastpage

7

Abstract

In this paper, a new sequential relay feedback method for the tuning of decentralized PID controllers in intelligent coordinated control systems (CCS). Based on the specified phase and gain margin, the parameters of the fuzzy self-adjusting PID controllers and the fuzzy gain scheduling PID controllers are determined. The scheme is implemented through the function code in typical DCSs (EDPF-NT, XDPS, etc). It has been used for control of the 300MW circulating fluidized bed (CFB) units. The industrial applications show that the scheme achieves better performance in the specific range of load variations.

Keywords

boilers; fluidised beds; fuzzy control; intelligent control; self-adjusting systems; three-term control; DCS; EDPF-NT; XDPS; circulating fluidized bed boiler; decentralized PID controller tuning; function code; fuzzy gain scheduling PID controller; fuzzy self-adjusting PID controller; gain margin; industrial application; intelligent coordinated control system; phase margin; power 300 MW; sequential relay feedback method; Boilers; Process control; Relays; Tuning; Turbines; boiler-turbine coordinated control; circulating fluidized bed boilet; fuzzy gain scheduling; fuzzy self-adjusting; relay feedback control;

fLanguage

English

Publisher

ieee

Conference_Titel

Fuzzy Information Processing Society (NAFIPS), 2012 Annual Meeting of the North American

Conference_Location

Berkeley, CA

ISSN

pending

Print_ISBN

978-1-4673-2336-9

Electronic_ISBN

pending

Type

conf

DOI

10.1109/NAFIPS.2012.6290975

Filename

6290975