What is PID control?

Question

Accepted Answer

PID control is a feedback control mechanism used in automation systems to regulate a process variable.

PID stands for Proportional-Integral-Derivative.
It continuously calculates an error value by comparing the desired setpoint with the actual process variable.
The controller then adjusts the control output based on the error value and the proportional, integral, and derivative gains.
Proportional control provides an output that is proportional to the error.
Integral control eliminates steady-state errors by integrating the error over time.
Derivative control predicts future errors based on the rate of change of the error.
PID control is widely used in industries such as manufacturing, chemical processing, and robotics.
Example: A PID controller can be used to maintain a constant temperature in a chemical reactor by adjusting the heating element based on temperature measurements.

Accepted Answer

Proportional integral derivative

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