PI regulation

PI regulation (Proportional-Integral regulation) is one of the types of regulators used in automation and process control to achieve a desired value (target value) for a specified system or process. This type of regulation combines two basic elements: proportional (P) and integrative (I) action to achieve stable and precise regulation.

Here is a quick overview of these two basic actions:

Proportional action (P): The proportional part of the controller reacts to the current error between the current state of the system and the target value. The larger this error, the stronger the proportional action response. The proportional part is responsible for quickly and accurately reaching the target value. Its action depends on the setting of the proportional constant number (P-constants).

Integration action (I): The integration part of the controller reacts to past errors and gradually removes them. This part is responsible for eliminating long-term deviations and stabilizing the system at the desired value. The integration action depends on the setting of the integration constant number (I-constants).

The P and I parts work together to regulate the system. The P part reacts quickly to current changes, while the I part corrects deviations in the long term. The combination of these two actions makes it possible to achieve stable, precise and fast control of various processes, such as temperature, pressure, speed or position control.

PI control is one of the most commonly used methods in automation and control and can be found in a wide variety of applications, from industrial automation systems to home appliances. Its effectiveness depends on the correct setting of the proportional and integration constants and on the appropriate evaluation and regulation of errors in the process.