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.

 

[DeeNos]

for your question! I am happy to clarify any confusion you may have about PID control.

1. The "P" in PID control stands for proportional control. This is the most basic and essential component of PID control. It works by measuring the difference between the desired setpoint and the actual output of a system, and then adjusting the control signal in proportion to this error. This means that the larger the error, the larger the correction signal will be. This helps to quickly bring the system back to the desired setpoint.

2. The "I" in PID control stands for integral control. This component works by continuously integrating the error over time and using it to adjust the control signal. This helps to eliminate any steady-state errors that may occur with proportional control alone. Essentially, it acts as a memory to remember past errors and make adjustments accordingly.

3. The "D" in PID control stands for derivative control. This component works by measuring the rate of change of the error and using it to adjust the control signal. It helps to anticipate and counteract any sudden changes in the system, preventing overshoot and oscillations.

4. Some examples of specific systems in which PID control is implemented include temperature control in industrial processes, flight control in aircraft, and speed control in motor vehicles. PID control is also commonly used in robotics, chemical processes, and HVAC systems. Its ability to quickly and accurately adjust control signals makes it a versatile and widely used control method in various industries.

I hope this helps to clear up any confusion you had about PID control. If you have any further questions, please don't hesitate to ask. Thank you for your curiosity and interest in this topic!