基于Pade逼近的纯滞后系统增益自适应内模PID控制

Gain adaptive internal model control of time delay systems based on Pade approximation

将纯滞后环节进行 1/ 1Pade逼近后 ,根据内模控制原理 ,得到了单位反馈PID控制器的参数整定值 ,然后运用仿人智能的方法得到被控对象的静态增益 ,由此来自动调整控制器的比例系数 .仿真结果表明 ,增益自适应内模PID控制器能克服增益变化对控制性能的影响 ,显著改善控制品质 .

After approximating the time delay unit using the Taylor series, one can get the PID parameters based on the internal model control(IMC). Artificial intelligence method is employed to recognize the gain of systems. And the gain is used to regulate the proportional factor of the IMC_PID controller. The simulation shows that the gain adaptive IMC can overcome the influence resulted from the gain variation of system.