CAJ | 학술논문

首先根据高炉炉项压力系统的机理建立了高炉炉顶压力和高炉煤气余压透平发电装置(blast furnacetop gas recovery turbine unit,以下简称TRT)前压力的动态数学模型,然后针对高炉炉项压力系统具有强耦合、强扰动和严重非线性的特点,提出一种融合PID控制,模糊控制和专家控制的解耦方法、用于消除顶压和TRT前压力的耦合,解决环缝和静叶开度与流量的非线性问题.在某钢铁公司2 200m3高炉的应用表明,高炉炉顶压力波动可减少到±2 kPa以内,提出的控制方法具有很好的控制效果.
수선근거고로로항압력계통적궤리건립료고로로정압력화고로매기여압투평발전장치(blast furnacetop gas recovery turbine unit,이하간칭TRT)전압력적동태수학모형,연후침대고로로항압력계통구유강우합、강우동화엄중비선성적특점,제출일충융합PID공제,모호공제화전가공제적해우방법、용우소제정압화TRT전압력적우합,해결배봉화정협개도여류량적비선성문제.재모강철공사2 200m3고로적응용표명,고로로정압력파동가감소도±2 kPa이내,제출적공제방법구유흔호적공제효과.
A dynamic mathematical model of top pressure and the pressure before blast furnace (BF) top gas recovery turbine unit (TRT) is firstly designed in this paper based on the principle of blast furnace top pressure system. Then considering the features of strong coupling, disturbance and nonlinearity of the blast furnace top system, a decoupling method combining PID control, fuzzy control and expert control is proposed, which can remove the coupling of top pressure and the pressure before TRT, and can also solve nonlinear problems about opening and flow rate of annular gap and static blade. When this decoupling control method is applied to a 2 200 m3 blast furnace in a steel corporation, it is proved effective to control the fluctuation of the top pressure of blast furnace within±2kPa.