ANALOGUE CONTROL SYSTEMS (EEEP3104)
Electrical and Electronic Engineering - EEE
Semester: First Semester
Level: 300
Year: 2018
Page 1 of 2
FIRST SEMESTER EXAMINATION 2017 / 2018
Exercise 1 (l0mks)
Give two examples of control systems and explain how they operate
Exercise 2 (15mks)
Consider the electric network in Figure
1
.
R1
Figure 1
Show that the differential equation governing the circuit can be written as:
+
+
+
+
=
+
Exercise 3 (16mks)
Represent the following systems in the s-plane and conclude on their stability:
a)H(s) =
b)
H(s) =
c)
H(s)=
d)
H (s) =
Exercise 4 (29mks)
A suspended, mobile, remote-controlled system to bring three-dimensional mobility to a
professional football match is shown by Figure 2.
REPUBLIC OF CAMEROON THE UNIVERSITY OF BAMENDA
Peace-
Work
-Fatherland P.O BOX 39 Bambili
School: COLTECH
Department: FEE 200 Lecturer: NFAH
EMMANUEL
Course Code: EEEP3104
Course Title: ANALOGUE CONTROL SYSTEMS
Date:
Hall:
Time:2hrs
Instructions:
Answer all questions, semi-logarithmic graph papers are allowed
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pulley
Figure 2: Mobile camera for a football field.
The camera can be moved over the field as well as up and down. The motor control on
each pulley is represented by Figure 3:
With G(s)=
We wish to achieve the following:
The transient response of the system should be aperiodic or pseudo periodic
• Zero position error
The system must be stable
Answer the questions that follow:
4.1. Discuss the stability of the system (camera, motor and pulley) G(s) (4
marks)
4.2. What do you understand by the term design criteria
(4 marks)
4.3. What are the design objectives for the system
(2 marks)
4.4. Determine the parameter of the controller using Bode diagrams
(15 marks)
4.5. Give the transfer function of the controller
(2 marks)
4.6 Draw the block diagram for the feedback control system
(2 marks)
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