自适应控制在冷连轧张力厚控系统中的应用

The Application of Adoptive Control to the Tension-AGC System on Cold Tandem Mill

摘要: 本文分析了冷连轧机张力厚控系统,表明该系统是时变动态系统,从而确定使用最小方差自校正调节器应用于该系统。对实际系统进行了辨识模型并在此基础上进行了仿真研究。结果表明了自校正调节器控制效果优于PID调节器,而渐消记忆的递推最小二乘法是一种较好的在线辨识算法。将自校正调节器应用于实际张力厚控系统,使得带铜厚差得到明显改善。

Abstract: The analysis of tension AGC system in the tandem cold mill shows that it is a time-varing dynamic system, so that the minimum variance self-tuning regulator is used. After the system is identified and simulated, the results how that the control effect of self-tuning regulator is better than that of PID regulator and the recursive least square with forgetting factor is a better identification algorithm. The application of self-tuning regulator in an actual tention AGC system shows that the gauge deviations of the controlled strip are greatly decreased.