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Instrumentation and Control Lab

magnetic Levitation

Ex 8: Modelling and Control of a Magnetic Levitation System (Cont'd...)

8.3 Procedure and Experimental Results (Cont'd...):

Tasks in lab

(i) Put the value of KP + KDS in real time Simulink model. Observe the out put response for step input and square wave input with three different frequencies and amplitudes. Plot input output waveforms in a graph paper and also plot the error. What is maximum value of the error? When it is occurring?

(ii) Put the value of KP + KI/S + KDS in real time Simulink model. Observe plot the parameters as described in previous step.

(iii) Set sine wave as desired position input. Observe and plot the parameters as described in (i).

8.4 Reference:

(i) Katsuhiko Ogata, “Modern Control Engineering”, Prentice-hall Of India Pvt Ltd, 4th edition, 2007.
(ii) Feedback manual, “Magnetic Levitation Control Experiments 33-942S”.


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