灵敏度约束的自整定最优比例积分控制器

针对一阶延时(FOPDT)模型,考虑到阶跃负载的干扰,以最小化时间乘绝对误差积分或最大积分增益为目标,利用数值优化运算获取比例积分控制器参数.在过程惯性时间与时滞时间之比的大范围内,通过寻优数值拟合出控制器参数调整公式.最后,用双通道继电器闭环测试获取过程信息,建立近似的一阶延时模型来自动整定控制器参数.仿真结果证明了此方法的有效性.

Auto-tuning Optimal PI Controller Satisfying Sensitivity Constraints

For first order plus delay time(FOPDT) models,considering the step change in load,the parameters of the proportional and integral(PI) controller are obtained by optimizing operation with the product of minimizing time and absolute error integration or maximum integral gain as the object;within the large range of the ratio of process inertia time and time delay,by adopting numerical fitting,the adjusting formula for parameters of controller is obtained;finally,process information is acquired with dual channe...