Title :
A novel IMC cascade control structure of super-heated steam temperature system for super-critical coal-fired boilers
Author :
Wei, Le ; Fang, Fang
Author_Institution :
Dept. of Autom., North China Electr. Power Univ., Baoding, China
Abstract :
Super-heated steam temperature control system is very important for the safe and economic operation of super-critical coal-fired boilers. Basing on internal model control (IMC) method, a novel super-heated steam temperature control structure is presented. In this structure, two internal model controllers are cascaded to guarantee the accuracy and disturbance rejection performance of whole system. The parameters tuning steps of the two controllers are also given. To verify the effectiveness, three simulation tests are taken. The simulation results show that the proposed structure has good tracking, anti-disturbance and load adaptability performances.
Keywords :
boilers; cascade control; coal; heating; temperature control; IMC cascade control structure; disturbance rejection performance; internal model control method; load adaptability; parameter tuning steps; simulation tests; super-critical coal fired boiler; super-heated steam temperature control system; Adaptation models; Load modeling; Temperature; Temperature control; Transfer functions; Tuning; Cascade control structure; Internal model control; Super-critical coal-fired boiler; Super-heated steam temperature;
Conference_Titel :
Control and Decision Conference (CCDC), 2011 Chinese
Conference_Location :
Mianyang
Print_ISBN :
978-1-4244-8737-0
DOI :
10.1109/CCDC.2011.5968261