【摘要】 为避免厚度控制系统中死区设置不当导致轧辊偏心主动补偿效果减弱问题，设计了轧辊偏心主动补偿下轧制力动态死区方法。针对传统板带厚差死区的板带厚度控制系统，通过深入的理论分析与数学推导，系统剖析主动轧辊偏心补偿情况下板带厚差死区对厚度精度的影响。设计了能够跟随轧辊偏心状态变化的轧制力动态死区，给出了其3种工况应用下的工作原理，并结合理论推导，验证了其与轧辊偏心主动补偿共用时可进一步降低轧辊偏心对板厚偏差的影响。基于生产数据辨识的偏心模型开展仿真实验，结果表明，在带有轧辊偏心主动补偿的厚度控制系统中，设计的轧制力动态死区比不采用死区和采用板带厚差动态死区这两种情况可获得更好的板厚精度。更多还原

【Abstract】 To avoid the problem of weakened active compensation effect for roll eccentricity caused by improper dead zone setting in the thickness control system, a dynamic dead zone method for rolling force under active compensation of roll eccentricity was designed.For the thickness control system of strip with thickness deviation dead zone, through in-depth theoretical analysis and mathematical derivation, the system analyzes the influence of the thickness deviation dead zone on the thickness accuracy under the condition of active roller eccentricity compensation.A dynamic dead zone of rolling force that can follow the change of roll eccentricity state was designed, and the working principles under three working conditions were given.Combined with theoretical derivation, it was verified that it could further reduce the influence of roll eccentricity on plate thickness deviation when shared with active compensation for roll eccentricity.Simulation experiments were conducted using an eccentricity model identified based on production data,and the results show that in a thickness control system with active compensation for roll eccentricity,the designed rolling force dynamic dead zone achieves better plate thickness accuracy compared to the two cases of not using the dead zone and using the plate thickness difference dynamic dead zone.更多还原