1. SAL COLLEGE OF ENGINEERING
TOPIC:
ELEMENTS OF CONTROL SYSTEM
PREPARED BY-
ACHAL PATEL( OO1)
JINIT SENGHA( )
MANAN SHAH ( )
VIMAL THAKKAR( )
FACULTY NAME:
GREESHMA NAIR

2. Control System
• Control is the process of causing a system variable to conform to some desired value.
• Manual control Automatic control (involving machines only).
• A control system is an interconnection of components forming a system configuration that will provide a desired system response.
control system
Output Signal
Input Signal
Energy Source

3. Block diagram

4. Types of Control system
Open-Loop Control system utilize a controller or control actuator to obtain the desired response.
Closed-Loop Control Systems utilizes feedback to compare the actual output to the desired output response.

5. General Control System
Sensor
Actuator
Process
Controller +
Set-point or Reference input
Actual Output
Error
Controlled Signal
Disturbance
Manipulated Variable
Feedback Signal -

6. Control System Components
System, plant or process
To be controlled
Actuators
Converts the control signal to a power signal
Sensors
Provides measurement of the system output
Reference input
Represents the desired output

7. Examples on modern control system

8. A computer control system

9. Purpose of Control Systems
Power Amplification (Gain)
Positioning of a large radar antenna by low-power rotation of a knob
Remote Control
Robotic arm used to pick up radioactive materials
Convenience of Input Form
Changing room temperature by thermostat position
Compensation for Disturbances
Controlling antenna position in the presence of large wind disturbance torque

10. THANK YOU