題組內容

5. Consider a second order system G(s) (in Fig. E), of which the nominal value of the parameter A=0.1. Please design a feedforward gain K and PD controller so that the response of the closed loop system can satisfy the both specifications listed below:【計分:15分】
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(2) disturbance rejection for the unit step w to 5% within 0.1 sec. If the parameter A varies between 0.05~0.15, can you design a controller so that the closed loop system can still achieve the above specifications?【計分:10分】