Consider the feedback control system below:
Km
X
Ym
The transfer functions of the blocks in the diagram are given as follows:
Gc = Kc
G = 1
(1 + s) = Pg = d (1 + 55) = Wg
a) Using the block diagram above, define and give examples of the following variables:
1. Controlled variable (CV)
2. Manipulated variable (MV)
3. Disturbance variable (DV) or load variable
b) Determine the transfer function Yi/Yisp.
c) Determine the transfer function Yi/D.
(p How is the error E computed?
e) Determine the characteristic equation of the block diagram.
f) Find the values of Ke for which the closed-loop system produces stable responses.