Title :
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
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;
Conference_Titel :
Fuzzy Information Processing Society (NAFIPS), 2012 Annual Meeting of the North American
Conference_Location :
Berkeley, CA
Print_ISBN :
978-1-4673-2336-9
Electronic_ISBN :
pending
DOI :
10.1109/NAFIPS.2012.6290975
