Question
In: Mechanical Engineering
What are the advantages and disadvantages of the PI controller, PD controller and PID controller ?...
What are the advantages and disadvantages of the PI controller, PD controller and PID controller ?
PLEASE DO IT IN A COMPUTER
ADVANCED DYNAMICS AND CONTROL SYSTEMS
Solutions
Expert Solution
Advantages of the PI controller
- Offset is not seen as in P controllers.
- PI controller is used for reducing the steady state error thus
helps in achieving steady state conditions.
- This controller can be used when the speed of the controller is
not a critical parameter.
Disadvantages of the PI controller
- The speed of the response and overall stability of the system
is lower.
- Set point overshoot is another drawback of this type of
controller.
- Expensive and moderately complex
Advantages of the PD controller
- Responses of the system can be predicted thus error handling
can be simplified.
- It can be used to increase the response time of an over damped
system. So, fast-response systems with a large transmission
coefficient can be built using it.
Disadvantages of the PD controller
- The system can experience operational offsets which needs
adjustments.
- Overshoot threshold of the system increases drastically.
Advantages of the PID controller
- PID is used to achieve transient response of the system with
better temperature control and better reaction times to
disturbances.
- low noise levels of the measuring channel can be achieved.
- Offset is not seen as in P controllers.
- Unnecessary vibratrions and overshoot are minimal.
Disadvantages of the PID controller
- The overall performance of the system can come down due to
large time delays
- It cannot be used for systems with slow disturbances
- Expensive and highly complex
samet mamat answered 2 years agoRelated Solutions
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