Question

1. Steady-State Error question Nise (7.13) For the system in Fig P7.4 find Kp, K,, Kg and state the system type 3) FIGURE P7.4 2. Nise (9.3) For a unity feedback system with 10% OS: KG(s) 1 +KG(s) NOTE: the 10% overshoot line is 126.16" with a (-59. a. Find the K value of the system at 10% OS if this corresponds to a point on the root locus of s-1.87+j2.56 NOTE: use the fact that 1 + KG(s)- 0 at all points on the root locus, so K ioconvert your G(s) to a exponential magnitude to find K (only have to compute the magnitude in this casel) b. What is the system type of this transfer function and value of the appropriate steady state error constant (K.)? NOTE: review the steady state error defintions & table from lecture & handouts b. Assuming that the steady state error constant for part b shows the current system has a is K Design a lag compensator that improves the K to 4. 98, NOTE: Remember the new K, will be different from the old one by the following ratic: c Plot the tf step response of the old system and the new and show that the steady state error has improved.

Answer 1

only (1)

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