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Question: p123 the position control loop based on a dc motor...

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P12.3 The position control loop based on a d.c. motor actuator is a very common student laboratory experiment. The loop uses a Type 1 model and demonstrates how diferentl trn bs used to une system dampingA desimforprgnortinal control on error and derivative control on measured variable, 6(S). is required as showan n the tigure. Ihe system time constant is given as 0.5 s and control specfication is for crisical damping with a natural frequency of 5 rad s Dis) e(s) ts+1 (a) Calculate the appropriate proportional and derivative gains. (b) Investigate the system response to a reference step of rt 0.2 (c) Comment on the practical feasibility of the control input produced.

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