CONSTRAINED DYNAMIC MATRIX CONTROL FOR A BOILER-TURBINE UNIT
A boiler-turbine unit is a typical multi-input multi-output (MIMO) industrial control system in power plant, which has nonlinear and couple characteristics. In this paper, a constrained dynamic matrix control (DMC) algorithm is designed for a nonlinear multivariable boiler-turbine unit with hard input constraints. Firstly an improved unconstrained DMC algorithm based on step response model for a single-input single-output (SISO) integrating process is proposed. It is shown that the proposed algorithm is more effective than conventional DMC and can also be extended to MIMO systems with integrating subsystems and input/output constraints. A 1-norm objective function is presented and the control actions can be obtained using linear programming online. Simulation results show that the designed control system has good tracking property and disturbance rejection ability without steady state offset while the control actions satisfy the coustraints.
Boiler-turbine system Dynamic matrix control Integrating system Input constraints
ZHI-JUN LI ZHENG-XI LI WEN TAN JI-ZHEN LIU
College of Electromechanical Engineering, North China University of Technology, Beijing, China Department of Automation, North China Electric Power University, Beijing, China
国际会议
2006 International Conference on Machine Learning and Cybernetics(IEEE第五届机器学习与控制论坛)
大连
英文
665-670
2006-08-13（万方平台首次上网日期，不代表论文的发表时间）