【摘要】 针对板带热连轧机活套的高度和张力控制系统 ,给出一种新的多变量解耦控制策略。通过逆Nyquist曲线对角占优性的强弱判定其耦合程度 ,并采用伪对角化方法使补偿后的活套高度和张力控制系统具有对角占优的特性。最后用 Matlab中的系统仿真工具 Sim ulink对活套多变量控制系统进行仿真实验 ,结果表明解耦后的活套控制系统可获得更好的控制效果。更多还原

【Abstract】 An optimal multivariable looper control system based on new decoupling strategy has been developed for hot strip finishing mills. The variables coupling degree is determined by the diagonal dominance degree of inverse Nyquist curve. Through pseudo-diagonalisation compensating the loopers′ height and tension control system has the diagonal dominance characters. By using the Simulink toolbox of the Matlab language, the simulation results have shown that, after decoupled, the loopers′ control performance gets much better.更多还原