CAJ | 학술논문

为了提高冷轧带钢的板形控制质量，通过理论计算结合现场生产条件制定了板形闭环控制系统的控制策略。在此基础上，设计了板形闭环控制系统的系统结构，建立了以板形调控功效为基础的多变量板形闭环控制算法。给出了分步求解各个板形调节机构调节量的计算方法，既避免了通过求导方式进行全局最优化计算时产生的矩阵奇异无解的状况，又在最大程度上降低了工作辊弯辊等调节机构输出饱和的情况。在板形闭环控制系统的设计中，给出了板形调节机构的变增益补偿设定环节。开发的冷轧板形控制系统已用于1450冷连轧机的板形控制过程中，经现场应用表明，板形闭环控制系统具有较强的消差能力，为冷轧板带生产实现精确的板形控制提供了必要条件。
위료제고랭알대강적판형공제질량，통과이론계산결합현장생산조건제정료판형폐배공제계통적공제책략。재차기출상，설계료판형폐배공제계통적계통결구，건립료이판형조공공효위기출적다변량판형폐배공제산법。급출료분보구해각개판형조절궤구조절량적계산방법，기피면료통과구도방식진행전국최우화계산시산생적구진기이무해적상황，우재최대정도상강저료공작곤만곤등조절궤구수출포화적정황。재판형폐배공제계통적설계중，급출료판형조절궤구적변증익보상설정배절。개발적랭알판형공제계통이용우1450랭련알궤적판형공제과정중，경현장응용표명，판형폐배공제계통구유교강적소차능력，위랭알판대생산실현정학적판형공제제공료필요조건。
In order to improve the flatness of cold rolled strips, a control strategy of flatness control system is studied based on the-oretical calculations and the field production conditions. A system structure and the multi-variable optimal control model are de-veloped based on this study results. The actuator adjustment is calculated as no solution in the global optimal calculation by deri-vation with a singular matrix. Moreover, a saturation output of actuators such as work roll bending can be avoided using this method. A variable gain compensation model for flatness actuators is set for the design of flatness feedback control system. The flatness control system is applied to the 1 450 tandem cold mill. The application results show that the flatness control system has excellent accuracy and provides a basis for flatness control.