Block Diagram of PI Controller
PI controller
Explanation of the Block Diagram
A Proportional controller operates in step by step manner to regulate a control system. It starts by calculating the error, which is the difference between the desired setpoint and current process variable. The proportional(P) part of the controller multiplies this error with proportional gain(Kp) and generates an immediate action. which is directly proportional to the error.
The Integral(I) part computes the cumulative sum of past errors by integrating gain(Ki). The two components P and I are then added together to determine the control output, which is applied to the system. This output adjusts the ultimate output of the system by minimizing the error over time and maintain the setpoint.
Proportional Integral Controller – Control System
The proportional controller commonly known as PI controller is an essential part of the Industrial Automation and Control system. It is a closed-loop feedback control mechanism that aims to adjust the process variable by manipulating the variable based on the error between the setpoint and the process variable. It strikes a balance between quick response to deviations and long-term error elimination. Tuning the controller allows adjustment to meet the desired value.
Table of Content
- Definition
- Equation and Diagram
- Block Diagram
- Effects
- Tuning
- Applications
- Advantages and Disadvantages
- Comparison with Other Types of Controllers
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