Consider a process model, and a PI controller with the Hagglund-Astrom settings of Table 12.4. Use the

Question:

Consider a process model,and a PI controller with the Hagglund-Astrom settings of Table 12.4. Use the robust stability limit of Eq. 14-35 to determine how robust this control system is to the assumed value of the process gain. Assume that the time constant and time delay do notchange.