Research Article

A Comparative Analysis of PID, Lead, Lag, Lead-Lag, and Cascaded Lead Controllers for a Drug Infusion System

Figure 14

Comparative analysis of closed-loop results using PI, lead, lag, and lead-lag controllers.
(a) Closed-loop results using the PI controller tuned with 9 different parameters in Table 3
(b) Closed-loop result using the PI controller tuned with the fifth parameter in Table 3
(c) Comparative analysis of closed-loop results using lag, lead, and lead-lag controllers