Chapter 7
Feedback Controllers
Figure 7.1 Schematic diagram for a stirred-tank blending
system.
1
2
Chapter 7
Basic Control Modes
Chapter 7
Next we consider the three basic control modes starting with
Problem 4.2
Problem 4.2
280
2
3
4
Ka=400*0.5=200 C/min
5
Problem 4.6
6
Problem 4.6
7
8
Problem 4.6 c
9
Problem 4.17
10
4.17
11
Figure 5.11
12
Figure 4.8
13
Comments: It is underdamped process with nom
Frequency Response Analysis
Chapter 13
Sinusoidal Forcing of a First-Order Process
For a first-order transfer function with gain K and time constant ,
the response to a general sinusoidal input, x t A
Chapter 10
Dynamic Behavior and Stability of
Closed-Loop Control Systems
In this chapter we consider the dynamic behavior of
processes that are operated using feedback control.
This combination of t
Chapter 11
1e 4s
Controller Tuning: A Motivational Example G s
20s 1
Fig. 11.1. Unit-step disturbance responses for the candidate controllers
(FOPTD Model: K = 1, 4, 20).
1
PID Controller Design, Tun
Chapter 2
Mathematical Modeling of
Chemical Processes
Mathematical Model (Eykhoff, 1974)
a representation of the essential aspects of an existing
system (or a system to be constructed) which
represent
More General Transfer Function Models
Poles and Zeros:
Chapter 5
The dynamic behavior of a transfer function model can be
characterized by the numerical value of its poles and zeros.
General Repres
Chapter 1
A Career in Process Control
Provides professional mobility.
There is a
shortage of experienced process control engineers.
Well paid technical profession for chemical
engineers.
1
Chapter 1
Chapter 4
Dynamic Behavior
In analyzing process dynamic and process control systems, it is
important to know how the process responds to changes in the
process inputs.
A number of standard types of in
Transfer Functions
Convenient representation of a linear, dynamic model.
Chapter 3
A transfer function (TF) relates one input and one output:
x t
u (t )
X s
U (s)
system
y (t )
Y (s)
The following