Title :
Improved disturbance observer design and its application
Author :
Zhou, Ping ; Lu, Shao-Wen ; Dai, Wei ; Chai, Tian-You
Author_Institution :
State Key Lab. of Synthetical Autom. for Process Ind., Northeastern Univ., Shenyang, China
Abstract :
To improve the disturbance rejection performance of model predictive control (MPC) based feedback control system, this paper first presents an improved disturbance observer (IDOB) design method for the SISO nonminimum-phase delay system. Then, a compound control strategy is proposed to handle multivariable process with large process disturbances by combining the proposed IDOB and the MPC. At last, several simulations and comparisons have been performed to demonstrate the proposed control method for multivariable grinding circuit.
Keywords :
delay systems; feedback; grinding; mineral processing; multivariable control systems; observers; predictive control; process control; IDO; MPC; SISO nonminimum-phase delay system; compound control strategy; disturbance rejection performance improvement; improved disturbance observer design; mineral grinding circuit system; model predictive control based feedback control system; multivariable grinding circuit; multivariable process; Control systems; Delay effects; Feeds; Low pass filters; Observers; Process control; Uncertainty; Disturbance Observer (DOB); Grinding Process; IDOB; Model Predictive Control; Nonminimum-Phase Multivariable Control;
Conference_Titel :
Control and Decision Conference (CCDC), 2012 24th Chinese
Conference_Location :
Taiyuan
Print_ISBN :
978-1-4577-2073-4
DOI :
10.1109/CCDC.2012.6244632
