Air Conditioning Process PID
A proportional-integral-derivative controller (PID controller or a three-term controller) is an instrument used in industrial control applications to regulate temperature, flow, pressure, speed, and other process variables. In practical terms, a PID automatically applies an accurate and responsive correction to a control function. An everyday example is the Air Conditioning Process PID, where the controller's PID algorithm restores the measured speed to the desired speed with minimal delay and overshoot by increasing the power output of the engine. In HVAC systems, various motors and devices need to be controlled with modulated signals to turn damper actuators and hydronic reheat valves. The Air Conditioning process is usually controlled by a simple, proportional integral and derivative controller with a single loop, or by using an on-off controller.
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