CHANG Jingwei, TIAN Xiaoxuan, HUANG Jintao. Simulink based dynamic characteristics simulation for water wall on an ultra supercritical boiler[J]. Thermal power generation, 2014, 43(2): 51-57.
CHANG Jingwei, TIAN Xiaoxuan, HUANG Jintao. Simulink based dynamic characteristics simulation for water wall on an ultra supercritical boiler[J]. Thermal power generation, 2014, 43(2): 51-57.DOI:
load adaptability and parameter variation of supercritical and ultra supercritical once-through boilers depend largely on the dynamic characteristics of water wall.The lumped parameter method was applied to establish the nonlinear moving boundary mathematical model for water walls under all conditions.Combined with the dynamic equations accessed by quadric modeling
the simulation program was complied on the platform of Matlab/Simulink
and the S function was employed to establish the general simulation module.Dynamic characteristics of water wall under 30% BMCR and 100% BMCR conditions were simulated to investigate the dynamic response properties of the water wall's major parameters when single variable(feedwater flow
feedwater enthalpy
burning rate and pressure in steam-water separator)suffered step disturbance by 10%.