JIANG Jiaguo, GUO Weimin, LIU Yanquan, et al. Auto disturbance rejection control based on Smith predictor in SCR denitrification system[J]. Thermal power generation, 2016, 45(1): 54-59.
JIANG Jiaguo, GUO Weimin, LIU Yanquan, et al. Auto disturbance rejection control based on Smith predictor in SCR denitrification system[J]. Thermal power generation, 2016, 45(1): 54-59.DOI:
nonlinear and time varying of the selective catalytic reduction(SCR)system
a control method based on the Smith predictor and auto disturbance rejection control(ADRC)was proposed.In order to shorten the adjustment time
the Smith predictor was used to compensate the system delay
thus the controlled quantity feeds back to the controller in advance.In order to enhance the accuracy of the model
the ADRC was applied to estimate the errors of the Smith model predictor and disturbances
and compensate them.The simulation results show that the ADRC based on Smith predictor can effectively improve the control effect of the SCR denitrification system
and improve the anti disturbance ability of the system.