PID Control 3P T1T2T3 Step Response

Cuthbert Nyack
Applet shows the step response of a third order type 0 system with PID control.

With the parameters eg (8.0, 1.0, 1.0, 1.0, x, x, 4.0) the P control system has become unstable. With eg (8.0, 1.0, 1.0, 1.0, 1.1, 0.3, 4.0) the PID controlled system has become unstable(Ti, Td too small). A reasonable response is possible eg (3.0, 1.0, 1.0, 1.0, 2.8, 0.7, 4.0).



Gif image below show how the applet should appear.

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COPYRIGHT 2006 Cuthbert Nyack.