The PID algorithm is the most popular feedback controller used within the process industries. It has been successfully used for over 50 years. It is a robust easily understood algorithm that can provide excellent control performance despite the varied dynamic characteristics of process plant.
These lecture notes,
- introduce the Proportional- Integral- Derivative (PID) control algorithm.
- discuss the role of the three modes of the algorithm.
- highlight different algorithm structures.
Discuss methods that have evolved over the last 50 years as aids in control loop tuning.
After completion of this section of the course a student should be capable of approaching a loop tuning problem in a competent and efficient manner and have sufficient knowledge to effectively tune a PID control algorithm.