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

<table class="figure-group"><tr class="fig-image" id="a"><td><object data="https://static.hindawi.com/articles/jhe/volume-2017/3153252/figures/3153252.fig.007a.svgz" name="3153252.fig.007a" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(a) </b>Root locus of the pseudo system <i>S</i> without a pseudo lead controller <i>C</i></td></tr><tr class="fig-image" id="b"><td><object data="https://static.hindawi.com/articles/jhe/volume-2017/3153252/figures/3153252.fig.007b.svgz" name="3153252.fig.007b" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(b) </b>Root locus of the pseudo system <i>S</i> with a pseudo lead controller <i>C</i></td></tr></table>

<div>Graphical illustration of effects of a phase-lead controller on root locus using a pseudo system <i>S</i> and a pseudo lead controller <i>C</i>.</div>

Journal of Healthcare Engineering

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Figure 7

Figure 7: A Comparative Analysis of PID, Lead, Lag, Lead-Lag, and Cascaded Lead Controllers for a Drug Infusion System 