CONTROLLER DESIGN
Objective
~ Type of compensator ~ Design of compensator in time response ~ Design of compensator in frequency response
Type of compensator
Basic block diagram
Input Output
+ -
Compensator
Actuator
Plant
Controller
Sensor
Actuator
Tak
Frequency Response
OBJECTIVE
Bode and Nyquist plots for control analysis Determination of transfer function Gain and Phase margins Stability in frequency response
Magnitude and Phase Angle
Transfer function is
Y ( s) G ( s) = R( s)
By replacing s =
CHAPTER 2
Modeling
1
Chapter Objective.
Revision on Laplace Transform. Poles and zeros in relation to transfer function. Examples of modeling.
2
Laplace Transform is defined as,
Laplace Transform Review.
L [ f (t )] = F ( s ) = f (t )e - st dt
0-
W