UNIT LOAD CONTROL SYSTEM BASED ON MULTIVARIABLE FEED-FORWARD AND FEEDBACK GPC
Unit load system of thermal power plant is a multivariable system with strong coupling. Its performance has great impact on the safety and economy of the unit. In this paper, multivariable feed-forward and feedback GPC (Generalized Predictive Control ) is introduced into the control of unit load system. The coupling between the power loop and pressure loop is treated as knowable exterior disturbance and considered during the designing process of GPC controllers. With structure analysis, the new controller is equivalent to feed-forward and feedback control system. But the new GPC controller has the merits of rolling optimization and without tuning parameters. Simulation of 125MW unit load system proved that the new method could meet the requirements of quick load response ability and maintaining the stability of steam pressure. The robustness of the new method is also satisfactory.
Multivariable feed-forward and feedback GPC Unit load system Coupling
PENG GUO
Dept.of Automation, North China Electric Power University, Beijing 102206, 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
860-864
2006-08-13（万方平台首次上网日期，不代表论文的发表时间）