DESIGN PROJECT 2 PID Controller For the following unity feedback system
G_(c)(s)is a PID controller and
G(s)is
G(s)=(1)/(s(s+1)(s+4)). a) Draw root locus curve for
K_(p)changes from zero to infinity when
K_(l)=0and
K_(d)=0. b) Obtain the
K_(p),K_(l), and
K_(d)values of PID controller by using the
2^(nd )Ziegler Nichols Method. c) Draw the modified root locus curve and step response. Do you have a good step response ? d) How could you improve the performance further? Show on root locus and step response curves.