An interactive tool for fractional order PID controllers

In this paper we present a Sysquake interactive software tool for the analysis and the design of fractional order proportional-integral-derivative (PID) controllers. In particular, the tool allows to analyze the effect of changing user-chosen parameters both in the time and frequency domain. In the time domain, set-point and load disturbance step responses of the control system are shown, as well as the effect of measurement noise. In the frequency domain, the Bode diagrams of all the most important closed-loop transfer functions are plotted. It is believed that this kind of Computer Aided Control System Design tools are essential in allowing a widespread use of fractional PID controllers in industry.

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