Nonlinear Control of Vaporized Cooling Level
In the converter steelmaking vaporized cooling process, the serious “false water level phenomenon appears at the drum water level of waste heat recovery boiler as the gas is burnt completely. According to the energy conversation law, a steam flow feed-forward compensator is designed as the open-loop controller to improve the previous control system. It is used to overcome the great nonlinearity of drum water level. Comparing the simulation results of three element control system and open-loop feed-forward compensation control system, it shows that the drum “false water level phenomenon can be restrained by the new control system. The safety problem caused by low water level is improved by this design. It ensures the process stability. This design was successfully applied at Hangzhou steel Ltd.
Vaporized cooling False water level Feed-forward compensator Nonlinearity
Wei Huang Qiang He Qiaoli Huang Qian Qi Yixin Zhao Wei Li
College of Computer & Information Science,Southwest University No.2,Tiansheng Street Beibei,Chongqing 400715 China
国际会议
深圳
英文
848-852
2008-12-10（万方平台首次上网日期，不代表论文的发表时间）