1. What does the P in PID control stand for? How does it work?

[KingOfHats]

1. What does the ”P” in PID control stand for? How does it work?

1. What does the ”P” in PID control stand for? How does it work?

2. What does the ”I” in PID control stand for? How does it work?

3. What does the ”D” in PID control stand for? How does it work?

4. give me 3 examples of specific systems in which PID control is implemented.


I have found a lot of information on the internet, but I have been confused about how every website gives different info. so if anyone has the answer that would be great :)

thanks

 

[El_Nino]

P stands for Proportional, I stands for integral and D stand for derivative.
The P part determines the reaction to the current error, the I part reacts to the sum (integral) over recent errors, and the D term determines how to react to the change in current errors. Can easily be remembered from the names.

PID Controller combines all these factors. PID Controller adds 2 zeros and one pole @ the origin to the transfer function.

 

[Zryn]

PID control is used in heating/cooling systems like air conditioners and ovens to operate the device at or around the set point temperature.

It is basically used to sample a current output, and move that output towards the desired user input, with some degree of confidence determined by whether you use P-control, PI-control, PD-control or the full PID-control.

 

[viscousflow]

Another example is PID controllers are used in altitude holds or even pitch holds in aircraft. Like everyone above has said, it basically tunes your system to give the desired behavior.